Best .NET software houses in Warsaw

Which company fits your project

• Itransition.NET is 35% of the technology focus on its Clutch profile. 5 open roles with .NET in the requirements. Score 88, 4.9 on Clutch from 42 reviews, profit in 2025.
• Innowise.NET is 11% of the technology focus on its Clutch profile. Score 84, 4.9 on Clutch from 73 reviews, profit in 2025.
• LeanCode.NET is 25% of the technology focus on its Clutch profile. Score 84, 5.0 on Clutch from 40 reviews, profit in 2025.
• BlueSoft3 open roles with .NET in the requirements. Score 84, 4.8 on Clutch from 13 reviews, profit in 2025.
• One senior instead of a teamIf the project fits one person with coding agents, hire me for .NET apps before you pay an agency margin.

The picks come from the data in the full table, not from who paid. A company enters this list when at least one source shows .NET work; the share on Clutch is what the company declares.

The top 10 at a glance

Click a column to sort.

#	Company	People	Clutch	Rate	Focus	Score
1	Itransitionprofit 3.6M PLN (2025)foreign-owned	1000-9999	4.9 · 42	25–49 USD/h	ERP and Microsoft Dynamics 365	88
2	Innowiseprofit 3M PLN (2025)GoWork 65/10	1000-9999	4.9 · 73	50–99 USD/h	Custom software	84
3	LeanCodeprofit 1.5M PLN (2025)	50-249	5.0 · 40	50–99 USD/h	Flutter mobile app	84
4	BlueSoftprofit 43.8M PLN (2025)GoWork 13/39	1000-9999	4.8 · 13	50–99 USD/h	Custom software	84
5	Andersenprofit 363K PLN (2025)	1000-9999	4.9 · 129	50–99 USD/h	Custom software	82
6	GL GLOBALDEVprofit 31K PLN (2025)foreign-owned	250-999	4.9 · 116	25–49 USD/h	Team extension	80
7	EL Elinextprofit 754K PLN (2025)	250-999	4.9 · 46	25–49 USD/h	Custom software	78
8	FI Fivelyprofit 93K PLN (2025)	50-249	5.0 · 30	50–99 USD/h	Web and SaaS	78
9	MI MITRIX Technologyprofit 746K PLN (2025)	50-249	5.0 · 16	50–99 USD/h	AI and generative AI	78
10	Euristiqprofit 96K PLN (2025)	50-249	4.8 · 38	50–99 USD/h	Custom application	77

The ranking

1

Itransition

Large global IT services group with a Warsaw entity, working in ERP, CRM, Microsoft Dynamics, Salesforce and data.

Clutch: 4.9 (42 reviews)Rate: 25–49 USD/hMin. project: 25,000 USDPremier Verified

Best for: Mid-size and large companies rolling out Microsoft Dynamics, Salesforce or an ERP that want a global vendor with a Polish invoice.

Pros

• The Polish company reported 83.4M PLN of revenue and a profit of 3.6M PLN in its 2025 filing.
• Clutch shows 4.9 from 42 reviews and a Premier Verified badge.
• Itransition has been a Microsoft partner since 2008. The site also lists Odoo Silver, Salesforce and AWS partnerships.
• The job boards showed 27 open roles, 24 of them remote.

Cons

• The Polish company belongs to Itransition Holdco Limited, and Clutch puts the group headquarters in Decatur, GA.
• The declared rate of 25 to 49 USD is the offshore band, so ask where your team will sit.
• GoWork shows few employee reviews, all negative (0 positive, 4 negative), and 2 of them mention layoffs.

From their website and Clutch profile

• The homepage claims 3,000+ engineers, 800+ clients and over 25 years in business. The Polish company in KRS dates from 2017 (source).
• The homepage names only two clients, and most case studies describe an unnamed retailer, pharma company or manufacturer (source).
• Clutch lists 12 offices, with headquarters in Decatur, GA, and Warsaw among them. The site shows no office list we could open (source).
• The site lists a Microsoft partnership since 2008, plus Odoo Silver, Salesforce and AWS partnerships (source).

Clients they name: The Economist, OPED Digital Health Solutions

ERP and Microsoft Dynamics 365CRM and SalesforceCustom software developmentData and BIAI and generative AIManaged IT servicesPythonJavaDockerJavaScript

Verdict. Pick Itransition for Dynamics, Salesforce or ERP rollouts at company scale. For a small custom product, the 25,000 USD minimum and the global delivery model are a poor fit.

2

Innowise

Very large outsourcing and staff augmentation company with a Warsaw headquarters claim and a catalog covering almost every technology.

Clutch: 4.9 (73 reviews)Rate: 50–99 USD/hMin. project: 10,000 USD

Best for: Teams that must add several developers quickly and can manage an outsourced team under their own tech lead.

Pros

• The Polish company reported 251.2M PLN of revenue and a profit of 3.0M PLN in its 2025 filing.
• Clutch shows 4.9 from 73 reviews.
• GoWork employee reviews lean positive, with 65 positive and 10 negative.
• The site lists ISO 9001, ISO 27001 and ISO 13485.

Cons

• The margin is thin, with profit at about one percent of revenue.
• The case studies page names no clients and warns that details may be generalized or modified. The portfolio cannot be checked.
• The Polish company dates from 2021, while the site claims 2007. The footer gives a registered address in Boston, and the job boards showed no open roles at the last snapshot.

From their website and Clutch profile

• The about page claims 3,500+ people, 1,600 projects and a founding year of 2007. The Polish company in KRS dates from 2021 (source).
• The FAQ names Warsaw as headquarters, while the footer gives a registered address in Boston, MA (source).
• The case studies page names no clients and warns that client details may be generalized or modified (source).
• Innowise sells staff augmentation openly, promising CVs in 1 to 2 days and a team joining in 3 to 5 days (source).

Clients they name: Hays, Spar, Tietoevry, Topcon, NTT Data, Commercial Bank of Qatar

Custom software developmentStaff augmentation and dedicated teamsTesting and QAData, AI and MLERP and CRMLegacy modernizationAI

Verdict. Use Innowise for staff augmentation under your own tech lead when you need CVs fast across many technologies. Skip it when you need a partner whose past work you can verify.

3

LeanCode

Warsaw Flutter specialist that builds mobile apps for banks and large brands and created the Patrol testing framework.

Clutch: 5.0 (40 reviews)Rate: 50–99 USD/hMin. project: 25,000 USDPremier Verified

Best for: Banks and large brands that have chosen Flutter and want the team behind Patrol, an open source Flutter testing tool.

Pros

• Profitable in the filings we checked, with a 2025 profit of 1.5M PLN on 22.1M PLN of revenue.
• Its open source Flutter testing framework, Patrol, is public work anyone can inspect. Two Google Developer Experts work on the team.
• The site names Credit Agricole Bank Polska as a banking reference, plus Wedel and Maspex.
• Holds 40 Clutch reviews with a 5.0 average, including reviewers from Google and Credit Agricole.

Cons

• Clutch puts 80% of its work in mobile, so the team specializes in Flutter apps.
• The 25,000 USD Clutch minimum and the enterprise focus rule out very small budgets.
• The last JustJoin snapshot showed zero open roles, and 28 GoWork entries are too few to judge it as an employer.

From their website and Clutch profile

• The home page claims 80+ experts, 40+ dedicated Flutter developers and 100+ delivered products (source).
• The about page gives 2016 as the founding year and lists Patrol, its open source Flutter testing framework launched in 2022 (source).
• Google lists LeanCode as an official Flutter consultant, and two of its engineers are Google Developer Experts (source).
• Clutch shows 5.0 from 40 reviews and 80% mobile work, with reviewers from Google, Credit Agricole and Maspex (source).

Clients they name: Credit Agricole Bank Polska, Wedel, Maspex, Shell, Virgin Money, Millennium

Flutter mobile app developmentWeb and custom software (.NET, React)Scoping and design thinking workshopsMobile app auditsAutomated UI testing with PatrolFlutter training

Verdict. Pick LeanCode when your app is in Flutter and you need enterprise process. Without a Flutter commitment, a broader product team fits better.

4

BlueSoft

Warsaw enterprise integrator owned by Orange Polska, focused on data, integration, cloud and AI for banks, telecom and retail.

Clutch: 4.8 (13 reviews)Rate: 50–99 USD/hMin. project: 50,000 USD

Best for: Banks, telecoms and large retailers that need integration, data platforms or managed services from a vendor with a corporate owner.

Pros

• BlueSoft reported 300.9M PLN of revenue and a profit of 43.8M PLN in 2025.
• Orange Polska has owned BlueSoft since 2019, which helps with procurement and continuity.
• Named case studies cover Canal+, Biedronka, GATX and Hellenic Cables. Clutch shows 4.8 from 13 reviews.
• The job boards showed 72 open roles at the last snapshot.

Cons

• GoWork employee reviews are negative (13 positive, 39 negative), with 2 mentions of layoffs.
• The minimum project is 50,000 USD and the processes are enterprise-grade, so an MVP is a poor fit.
• Many case studies are for Orange companies, the owner, so outside references are fewer than they look.

From their website and Clutch profile

• BlueSoft has belonged to the Orange Polska group since 2019, together with Craftware and Essembli (source).
• Several case studies are for Orange companies, the owner, next to clients such as Canal+, Biedronka and GATX (source).
• The site claims 1000+ experts and 200+ active clients and says it is hiring 118 people (source).
• The site shows partner logos for AWS, Microsoft, Google, MuleSoft, Salesforce and Databricks (source).

Clients they name: Orange Polska, Canal+, Biedronka, GATX, Hellenic Cables, Raiffeisen Bank

Custom software developmentData platforms and BISystem integration (MuleSoft)Cloud migrationAI agents and document processingManaged servicesJavaPythonTerraformPostgreSQL

Verdict. Pick BlueSoft for corporate integration, data and managed services backed by a telecom group. For a startup or a single small product, it is too heavy.

5

Andersen

Large international outsourcing company headquartered in Warsaw, selling dedicated teams and full-cycle development in 22 industries.

Clutch: 4.9 (129 reviews)Rate: 50–99 USD/hMin. project: 50,000 USDVerified

Best for: Companies that need a large dedicated team fast, across many technologies, and can run it with their own product owner.

Pros

• Clutch shows 129 reviews with a 4.9 rating and a Verified badge.
• The Polish company reported 177.1M PLN of revenue in its 2025 filing.
• Andersen has headquarters in Warsaw and a Kraków development center. Its named work includes Deutsche Telekom and Samsung Electronics.

Cons

• The margin is near zero, with a profit of 363K PLN on 177.1M PLN of revenue.
• The Polish company dates from 2019, while the group claims 19 years. Other entities sit in Lithuania and Germany.
• Our GoWork data has no employee reviews, and the job boards showed no open roles at the last snapshot. The minimum project is 50,000 USD.

From their website and Clutch profile

• The about page claims 3,500+ in-house experts, 2,000+ clients, 18 offices and 19 years of experience, with Warsaw as headquarters (source).
• The footer names other legal entities, UAB Andersen Soft and Andersen Germany GmbH, so the Polish company is one of several (source).
• Many case studies are under NDA, and the named ones include Deutsche Telekom and Samsung Electronics (source).
• The site announces the Claude Partner Network and AWS MSP partnership (source).

Clients they name: Samsung Electronics, Deutsche Telekom, BNP Paribas, Verivox, TUI

Custom software developmentStaff augmentation and dedicated teamsAI and dataCloud and DevOpsCybersecurityCRM and ERPAI

Verdict. Use Andersen to scale a team you lead, backed by 129 Clutch reviews. Check who signs the contract, given the thin Polish margin and the multi-entity setup.

6

GLGLOBALDEV

Globaldev Group sells AI-first engineering teams, team extension and AI consulting from hubs across Europe.

Clutch: 4.9 (116 reviews)Rate: 25–49 USD/hMin. project: 50,000 USDPremier Verified

Best for: Product company that wants to add AI-focused engineers to its own team for months.

Pros

• Clutch shows 4.9 from 116 reviews at $25–49 per hour.
• The group claims 450+ in-house experts across 6 hubs in Europe.
• Offers Claude implementation and AI readiness consulting next to engineering.

Cons

• Mainly staffing, with team extension listed first and recruitment and HR management inside the service.
• The Polish company earned 2.4M PLN in 2025 with 31K PLN of profit, so most of the group works elsewhere.
• The site gives no Polish address, and the Clutch minimum project is $50,000.

From their website and Clutch profile

• The about page claims 450+ in-house experts, 6 development hubs across Europe and 15 years in the market (source).
• The contact page lists phone numbers for Israel, Europe and the USA and no Polish address (source).
• The Global Teams service covers recruitment, onboarding, HR and account management for extension teams (source).
• The home page presents Globaldev as a Claude certified services partner (source).

Clients they name: ECIT, SAKANI

Team extensionCustom software developmentAI consulting and Claude implementationGenAI and AI developmentData analytics and data annotationCloud migration and DevOpsAI

Verdict. Pick Globaldev to extend your team with AI-focused engineers at a mid-market rate. Skip it if you want a Polish team you can visit.

7

ELElinext

Multinational software company headquartered in Warsaw, with 700+ engineers in 11 locations and a large QA practice.

Clutch: 4.9 (46 reviews)Rate: 25–49 USD/hMin. project: 10,000 USDPremier Verified

Best for: Enterprises that need a large outsourced team for testing and QA alongside custom development.

Pros

• Lists manual, automated, performance and penetration testing as separate QA services.
• Shows ISO 9001, ISO 27001 and ISO 13485 badges on its site.
• Clutch shows 4.9 from 46 reviews.
• Earned 754K PLN of profit on 18.6M PLN of revenue in 2025.

Cons

• Most of its 700+ engineers work outside Poland, in centers such as Vietnam and Uzbekistan.
• The site gives two QA headcounts, 200+ and 120, so ask who will work on your project.

From their website and Clutch profile

• The contact page names Warsaw as headquarters with 220+ employees, plus centers in Vietnam, Uzbekistan, Georgia and Kazakhstan (source).
• The services page gives 200+ QA engineers in one place and 120 in-house QA engineers in another (source).
• The site dates the group to 1997, while the Polish company entered KRS in 2020 (source).
• The home page shows ISO 9001, ISO 27001 and ISO 13485 badges (source).

Clients they name: Siemens, P&G, Volkswagen, STIHL, TUI Group, IQVIA

Custom software developmentMobile app developmentTesting and QAAI developmentDevOps and IT supportUI/UX designAI

Verdict. Use Elinext when you need many testers or developers fast and can work across time zones. For a small team based in Poland, pick a local firm.

8

FIFively

Warsaw-registered software firm for startups, with a Dubai entity, building web, SaaS and AI apps.

Clutch: 5.0 (30 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Best for: A startup founder who needs a web MVP or SaaS, with PHP or Shopify work in scope.

Pros

• Clutch shows 5.0 from 30 reviews.
• Publishes budget ranges of 25,000 to 100,000+ USD in its FAQ.
• Shows 49 case studies, many with named clients like Insly and WebinarNinja.
• Revenue reached 12.5M PLN in 2025.

Cons

• Thin margin in 2025, with 93K PLN of profit on 12.5M PLN of revenue.
• The Polish company dates from 2022, younger than the 2018 story on the site.
• Had zero open roles at the last snapshot and no GoWork reviews.

From their website and Clutch profile

• The about page says the story began in 2018, while KRS registered the Polish company in 2022. (source)
• The FAQ puts typical budgets at 25,000 to 100,000+ USD and the average project at 9 months. (source)
• The case studies page lists 49 projects, with PHP tagged in 5, Magento in one and Shopify in one. (source)
• The about page names a second entity, Fively Software Engineering FZCO in Dubai. (source)

Clients they name: Insly, Volt, AviMedical, WebinarNinja, ComFi, Uniqkey, Inzmo

Web and SaaS developmentAI chatbots and RAGMobile appsCloud migration and API developmentTeam augmentation and dedicated teamsLegacy re-engineeringAI

Verdict. Fively fits a startup MVP with a budget in its published range. Ask which entity signs, Warsaw or Dubai, before you start.

9

MIMITRIX Technology

Warsaw software firm offering AI, web and mobile builds plus team augmentation.

Clutch: 5.0 (16 reviews)Rate: 50–99 USD/hMin. project: 10,000 USD

Best for: Online schools and training providers that need a learning platform, an attendance app or a voice practice widget.

Pros

• Profitable in 2025, with 746K PLN of profit on 17.3M PLN of revenue.
• 4 of 13 portfolio projects are EdTech.
• Clutch shows 5.0 from 16 reviews.

Cons

• Clutch puts IT staff augmentation at 20% of its work, so part of the business rents out developers.
• Portfolio entries give no metrics.
• The site claims work since 2016, while the Polish company dates from 2022.

From their website and Clutch profile

• The portfolio lists 13 projects, 4 of them tagged EdTech, including a learning platform for Academic Gateway. (source)
• The portfolio page says the company has helped clients since 2016, while the Polish company dates from 2022. (source)
• The home page sells team augmentation with engineering, testing and support staff. (source)
• Clutch puts IT staff augmentation at 20% of the work. (source)

Clients they name: ViaPoint, uQualio, Use2go GmbH, Vivatum, Academic Gateway

AI and generative AI developmentWeb developmentMobile developmentCloud developmentBusiness intelligenceDedicated and augmented teamsAI

Verdict. Pick MITRIX for an EdTech build or an AI feature with a mid-size team. Ask for a fixed delivery team if you do not want rented developers.

10

Euristiq

Toronto-based custom software firm with delivery teams in Warsaw and Lviv, focused on modernization and AI-native products.

Clutch: 4.8 (38 reviews)Rate: 50–99 USD/hMin. project: 50,000 USDPremier Verified

Best for: Fintech, airline or energy firm modernizing a legacy platform, with ISO 27001 on its vendor checklist.

Pros

• Publishes starting prices for AI work, from $5,000 for a strategy sprint.
• Holds ISO/IEC 27001 and AWS Advanced Tier partner status.
• Clutch shows 4.8 from 38 reviews.
• Has modernized airline and investment software for Ryanair and Octopus.

Cons

• Made 96K PLN of profit on 13.9M PLN of revenue in 2025.
• The Polish company dates from 2022, and the brand and headquarters sit in Canada.
• Clutch sets a $50,000 minimum project.

From their website and Clutch profile

• The about page names Toronto as headquarters, with Warsaw and Lviv as delivery offices. (source)
• The about page says ISO/IEC 27001:2022 covers the Canadian entity and the Poland and Ukraine teams. (source)
• The home page prices AI work from $5,000 for a strategy sprint and from $30,000 for a build. (source)
• Case studies include Ryanair flight operations software and portfolio software for Octopus. (source)

Clients they name: Ryanair, Philips, Gen Digital (Norton), Octopus Group, York University, Corpay

Custom application developmentLegacy modernizationCloud and AWS developmentAI strategy and AI-native developmentIoT developmentMVP and PoC developmentAI

Verdict. Pick Euristiq for a large modernization that needs security paperwork. Skip it for a project under $50,000.

Every company we checked

The table below has the 94 companies with .NET evidence in Warsaw, including the ones that do not qualify for the ranking, with the reason. Sort by any column.

Show all 94 companies

Size:2-910-4950-249250-9991000-9999 Rate:25-49 USD50-99 USD100-149 USD150-199 USD · 94

#	Company	HQ (KRS)	People	Clutch	Rate	Revenue	Profit	Focus	Score	Links
1	ItransitionERP and Microsoft Dynamics 365	Warsaw	1000-9999	4.9 · 42	25–49 USD/h	83.4M PLN	3.6M PLN	ERP and Microsoft Dynamics 365	88	WebsitePortfolioClutchKRS
2	InnowiseCustom software	Warsaw	1000-9999	4.9 · 73	50–99 USD/h	251.2M PLN	3M PLN	Custom software	84	WebsitePortfolioClutchKRS
3	LeanCodeFlutter mobile app	Warsaw	50-249	5.0 · 40	50–99 USD/h	22.1M PLN	1.5M PLN	Flutter mobile app	84	WebsitePortfolioClutchKRS
4	BlueSoftCustom software	Warsaw	1000-9999	4.8 · 13	50–99 USD/h	300.9M PLN	43.8M PLN	Custom software	84	WebsitePortfolioClutchKRS
5	AndersenCustom software	Warsaw	1000-9999	4.9 · 129	50–99 USD/h	177.1M PLN	363K PLN	Custom software	82	WebsitePortfolioClutchKRS
6	GL GLOBALDEVTeam extension	Warsaw	250-999	4.9 · 116	25–49 USD/h	2.4M PLN	31K PLN	Team extension	80	WebsitePortfolioClutchKRS
7	EL ElinextCustom software	Warsaw	250-999	4.9 · 46	25–49 USD/h	18.6M PLN	754K PLN	Custom software	78	WebsitePortfolioClutchKRS
8	FI FivelyWeb and SaaS	Warsaw	50-249	5.0 · 30	50–99 USD/h	12.5M PLN	93K PLN	Web and SaaS	78	WebsitePortfolioClutchKRS
9	MI MITRIX TechnologyAI and generative AI	Warsaw	50-249	5.0 · 16	50–99 USD/h	17.3M PLN	746K PLN	AI and generative AI	78	WebsitePortfolioClutchKRS
10	EuristiqCustom application	Warsaw	50-249	4.8 · 38	50–99 USD/h	13.9M PLN	96K PLN	Custom application	77	WebsitePortfolioClutchKRS
–	Ideamotivebody leasing	Warsaw	10-49	5.0 · 27	50–99 USD/h	13.1M PLN	606K PLN	Docker	83	WebsiteClutchKRS
–	Team Connectbody leasing	Warsaw	50-249	5.0 · 8	25–49 USD/h	48.6M PLN	1.2M PLN	Software	81	WebsitePortfolioClutchKRS
–	ALTEN Polskabody leasing	Warsaw	1000-9999	5.0 · 10	25–49 USD/h	406.7M PLN	36.2M PLN	Engineering services	79	WebsiteClutchKRS
–	IT ITDSbody leasing	Warsaw	250-999	4.9 · 11	n/a	141M PLN	12.7M PLN	Java	78	ClutchKRS
–	CI Civittatoo little client evidence	Warsaw	250-999	4.9 · 23	50–99 USD/h	14.7M PLN	2.3M PLN	Public-sector advisory	77	WebsiteClutchKRS
–	RE Relevant Softwaretoo little client evidence	Warsaw	50-249	4.9 · 32	50–99 USD/h	14.3M PLN	608K PLN	Full-cycle software	77	WebsitePortfolioClutchKRS
–	SE SENLAtoo little client evidence	Warsaw	250-999	4.9 · 19	25–49 USD/h	25.8M PLN	1.7M PLN	Staff augmentation	77	WebsitePortfolioClutchKRS
–	B3 B3 Consulting Polandbody leasing	Warsaw	50-249	4.9 · 6	25–49 USD/h	55.7M PLN	6.2M PLN	IT consultants extending client teams	76	PortfolioClutchKRS
–	ISCGtoo little client evidence	Warsaw	50-249	4.7 · 10	50–99 USD/h	31M PLN	3.1M PLN	Microsoft 365 and Azure deployment and support	76	WebsitePortfolioClutchKRS
–	KN Knowittoo little client evidence	Warsaw	1000-9999	4.6 · 6	n/a	86.5M PLN	7M PLN	Product and service	76	WebsitePortfolioClutchKRS
–	MO Modsentoo little client evidence	Warsaw	250-999	4.9 · 7	25–49 USD/h	12.2M PLN	890K PLN	AI	75	WebsiteClutchKRS
–	NE NerdySofttoo little client evidence	Warsaw	50-249	5.0 · 9	50–99 USD/h	6.4M PLN	552K PLN	Software product engineering	75	WebsitePortfolioClutchKRS
–	SO SoftTecotoo little client evidence	Warsaw	250-999	4.8 · 16	25–49 USD/h	17.3M PLN	486K PLN	AI	75	WebsiteClutchKRS
–	VI Vilmatetoo little client evidence	Warsaw	50-249	5.0 · 11	50–99 USD/h	10.8M PLN	43K PLN	E-commerce	75	WebsitePortfolioClutchKRS
–	FR Freeport Metricstoo little client evidence	Warsaw	10-49	4.8 · 15	50–99 USD/h	5.3M PLN	126K PLN	Generative AI integration	74	WebsitePortfolioClutchKRS
–	IT ITSharkztoo little client evidence	Warsaw	10-49	4.9 · 13	25–49 USD/h	7.3M PLN	461K PLN		74	WebsiteClutchKRS
–	OX Oxagiletoo little client evidence	Warsaw	250-999	4.9 · 17	n/a	2.1M PLN	135K PLN		74	WebsiteClutchKRS
–	FR FREYSOFTtoo little client evidence	Warsaw	50-249	5.0 · 8	50–99 USD/h	4.3M PLN	158K PLN	AI	73	WebsiteClutchKRS
–	Instinctoolstoo little client evidence	Warsaw	250-999	4.7 · 36	25–49 USD/h	14M PLN	537K PLN	AI development and agents	73	WebsitePortfolioClutchKRS
–	SI Sigma Software Grouptoo little client evidence	n/a	1000-9999	4.8 · 37	50–99 USD/h	28M PLN	909K PLN	AI-powered software engineering	73	WebsitePortfolioClutchKRS
–	CO Cowchaintoo little client evidence	Warsaw	50-249	5.0 · 36	25–49 USD/h	109K PLN	83K PLN	Web3 full-stack	72	WebsitePortfolioClutchKRS
–	Qodecatoo little client evidence	Warsaw	50-249	5.0 · 9	50–99 USD/h	22.5M PLN	486K PLN	Tech advisory	72	WebsitePortfolioClutchKRS
–	SC ScienceSofttoo little client evidence	Warsaw	250-999	4.8 · 46	50–99 USD/h	6.8M PLN	184K PLN	AI	72	WebsiteClutchKRS
–	XP XPG Factortoo little client evidence	Warsaw	50-249	5.0 · 5	50–99 USD/h	3.1M PLN	58K PLN	Custom software	72	WebsitePortfolioClutchKRS
–	EffectiveSoftbody leasing	Warsaw	250-999	4.9 · 19	50–99 USD/h	9.4M PLN	140K PLN	AI	71	WebsiteClutchKRS
–	DD DDI Developmenttoo little client evidence	Warsaw	50-249	4.8 · 7	25–49 USD/h	3.6M PLN	123K PLN	MVP and SaaS	69	WebsitePortfolioClutchKRS
–	Directiotoo little client evidence	Warsaw	50-249	4.8 · 6	50–99 USD/h	29.1M PLN	-437K PLN	End-to-end software	68	WebsitePortfolioClutchKRS
–	Geniuseetoo little client evidence	Warsaw	250-999	5.0 · 71	25–49 USD/h	253K PLN	n/a	AI	68	WebsiteClutchKRS
–	PR Primotlytoo little client evidence	Warsaw	10-49	4.7 · 18	50–99 USD/h	10.3M PLN	-138K PLN	Computer vision	68	WebsitePortfolioClutchKRS
–	RE RevoTech PROtoo little client evidence	Warsaw	10-49	5.0 · 7	25–49 USD/h	276K PLN	42K PLN	AI	67	WebsiteClutchKRS
–	CO Computoolstoo little client evidence	Warsaw	250-999	4.9 · 106	25–49 USD/h	1.6M PLN	-387K PLN	IT consulting and business analysis	66	WebsitePortfolioClutchKRS
–	IN Interexytoo little client evidence	Warsaw	250-999	4.9 · 74	25–49 USD/h	1.2M PLN	-16K PLN	AI	65	WebsiteClutchKRS
–	MA Mainsofttoo little client evidence	Warsaw	50-249	5.0 · 17	50–99 USD/h	3.8M PLN	-150K PLN	Product	65	WebsitePortfolioClutchKRS
–	GP Solutionstoo little client evidence	Łódź	250-999	4.9 · 24	50–99 USD/h	1.5M PLN	-36K PLN	Custom enterprise software	63	WebsitePortfolioClutchKRS
–	GS GS Servicesbody leasing	Warsaw	50-249	no Clutch profile	25–49 USD/h	9.2M PLN	6K PLN	Python	63	ClutchKRS
–	RO Routine Automationtoo little client evidence	Warsaw	50-249	4.9 · 18	50–99 USD/h	6.4M PLN	-498K PLN		63	WebsiteClutchKRS
–	PRAStoo little client evidence	Warsaw	10-49	4.9 · 9	25–49 USD/h	5K PLN	-15K PLN		59	WebsiteClutchKRS
–	Softellartoo little client evidence	Warsaw	10-49	5.0 · 12	50–99 USD/h	44K PLN	-110K PLN		59	WebsiteClutchKRS
–	VE Ventiontoo little client evidence	Warsaw	1000-9999	4.9 · 103	50–99 USD/h	n/a	n/a	AI	59	WebsiteClutchKRS
–	FL FlairsTechtoo little client evidence	Warsaw	1000-9999	4.6 · 11	n/a	1.9M PLN	-1.2M PLN	AI	52	WebsiteClutchKRS
–	DE Devox Softwaretoo little client evidence	n/a	50-249	5.0 · 45	50–99 USD/h	n/a	n/a	AI	49	WebsiteClutch
–	FI Finturetoo little client evidence	n/a	250-999	5.0 · 3	50–99 USD/h	n/a	n/a	Java	49	WebsiteClutch
–	Nexio Managementtoo little client evidence	n/a	250-999	no Clutch profile	50–99 USD/h	n/a	n/a	Python	49	WebsiteClutchKRS
–	10 10Clouds Financial Institutionstoo little client evidence	n/a	50-249	4.9 · 95	50–99 USD/h	n/a	n/a	AI	48	WebsiteClutch
–	EC eConsultingtoo little client evidence	n/a	50-249	5.0 · 6	n/a	n/a	n/a	Azure	48	WebsiteClutch
–	IN Infograins Software Solutionstoo little client evidence	n/a	250-999	4.9 · 89	50–99 USD/h	n/a	n/a	AI	48	WebsiteClutch
–	RE Reenbittoo little client evidence	n/a	50-249	5.0 · 23	25–49 USD/h	n/a	n/a	AI	48	WebsiteClutch
–	AI Airnautstoo little client evidence	n/a	50-249	5.0 · 31	50–99 USD/h	n/a	n/a		47	WebsiteClutch
–	FT Ftechtoo little client evidence	n/a	50-249	5.0 · 17	25–49 USD/h	n/a	n/a	AI	47	WebsiteClutch
–	NE Neontritoo little client evidence	n/a	10-49	5.0 · 3	50–99 USD/h	n/a	n/a	Java	47	WebsiteClutch
–	CE Celadonsofttoo little client evidence	n/a	50-249	5.0 · 28	25–49 USD/h	n/a	n/a	AI	46	WebsiteClutch
–	FA Fabritytoo little client evidence	n/a	250-999	4.7 · 11	25–49 USD/h	n/a	n/a	AI	46	WebsiteClutch
–	LI Lightpoint Globaltoo little client evidence	n/a	50-249	5.0 · 13	25–49 USD/h	n/a	n/a		46	WebsiteClutch
–	YA Yalantistoo little client evidence	n/a	250-999	4.8 · 79	50–99 USD/h	n/a	n/a	AI	46	WebsiteClutch
–	AL Altorostoo little client evidence	n/a	250-999	4.8 · 34	50–99 USD/h	n/a	n/a		45	WebsiteClutch
–	BI Billenniumtoo little client evidence	n/a	1000-9999	5.0 · 1	n/a	n/a	n/a	Java	45	WebsiteClutchKRS
–	GO GO ONLINEtoo little client evidence	n/a	10-49	5.0 · 11	25–49 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	HE Helpware Techtoo little client evidence	n/a	250-999	4.9 · 30	50–99 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	KN KnubiSofttoo little client evidence	n/a	50-249	4.8 · 36	25–49 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	PI PixelPlextoo little client evidence	n/a	50-249	4.9 · 33	50–99 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	PR Pragmiletoo little client evidence	n/a	50-249	4.9 · 4	25–49 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	PR Pretiustoo little client evidence	n/a	50-249	4.8 · 8	50–99 USD/h	n/a	n/a	Python	45	WebsiteClutchKRS
–	SE Sensi Labstoo little client evidence	n/a	50-249	4.9 · 27	25–49 USD/h	n/a	n/a		45	WebsiteClutch
–	SU Sunmait Technologiestoo little client evidence	n/a	50-249	5.0 · 9	50–99 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	SY Symfatoo little client evidence	n/a	50-249	4.9 · 18	50–99 USD/h	n/a	n/a	AI	45	WebsiteClutch
–	AT Atomic Actionstoo little client evidence	n/a	10-49	5.0 · 13	50–99 USD/h	n/a	n/a	AI	44	WebsiteClutch
–	BL Blackthorn Visiontoo little client evidence	n/a	50-249	4.8 · 24	25–49 USD/h	n/a	n/a	AI	44	WebsiteClutch
–	CR CROSStoo little client evidence	Opole	50-249	5.0 · 2	50–99 USD/h	n/a	n/a	AI	44	WebsiteClutch
–	HQ HQSoftwaretoo little client evidence	n/a	50-249	4.9 · 24	25–49 USD/h	n/a	n/a	AI	44	WebsiteClutch
–	IO iomicotoo little client evidence	n/a	10-49	4.9 · 24	50–99 USD/h	n/a	n/a		44	WebsiteClutch
–	LI LINKERSOFT GROUPtoo little client evidence	n/a	50-249	5.0 · 8	25–49 USD/h	n/a	n/a	AI	44	WebsiteClutch
–	WI Wise Visiontoo little client evidence	n/a	50-249	5.0 · 12	25–49 USD/h	n/a	n/a		44	WebsiteClutch
–	IT ITRextoo little client evidence	n/a	250-999	4.9 · 17	50–99 USD/h	n/a	n/a	AI	43	WebsiteClutch
–	PR Progneticstoo little client evidence	n/a	10-49	4.9 · 8	25–49 USD/h	n/a	n/a		43	WebsiteClutch
–	UA UASOFTDEVtoo little client evidence	n/a	50-249	5.0 · 11	25–49 USD/h	n/a	n/a	AI	43	WebsiteClutch
–	EY Eyzeetoo little client evidence	n/a	50-249	5.0 · 3	50–99 USD/h	n/a	n/a		42	Clutch
–	AA AAtoo little client evidence	n/a	50-249	4.9 · 4	50–99 USD/h	n/a	n/a	AI	41	WebsiteClutch
–	ON On The Spot Developmentbody leasing	n/a	50-249	5.0 · 7	25–49 USD/h	n/a	n/a	Docker	41	Clutch
–	KI KITRUMstruck off KRS	Warsaw	250-999	5.0 · 73	50–99 USD/h	0 PLN	-28K PLN	AI	40	WebsiteClutchKRS
–	MI MintyMinttoo little client evidence	n/a	50-249	5.0 · 3	25–49 USD/h	n/a	n/a	AI	40	WebsiteClutch
–	PI PinoByteunder 10 people	n/a	2-9	5.0 · 2	25–49 USD/h	n/a	n/a	AI	40	WebsiteClutch
–	MA Madifftoo little client evidence	n/a	50-249	4.9 · 4	50–99 USD/h	n/a	n/a	AI	39	WebsiteClutch
–	NO Noctuaitoo little client evidence	n/a	10-49	4.8 · 3	50–99 USD/h	n/a	n/a	AI	38	WebsiteClutch
–	SA SaM Solutionstoo little client evidence	n/a	250-999	4.5 · 1	50–99 USD/h	n/a	n/a	AI	37	WebsiteClutch

All companies in the data set, with the same score. Companies without a confirmed office, sole traders, body-leasing firms and product companies are listed but not ranked.

Who is not in the top 10, and why

What they charge

Check any agency yourself in 10 minutes

1. Ask about the oldest .NET Framework app they have moved to modern .NET and what broke. Many .NET shops in Poland are Microsoft partners that also sell licenses, so separate the build from the resale.
2. Find the legal entity in the National Court Register: the seat, the share capital and the shareholders. An office here with a seat in another city is a sales office, not a team.
3. Read the last financial statement on rejestr.io: revenue, profit or loss, and whether it was filed on time.
4. Check the VAT white list: active, and the name matches the contract.
5. On the Clutch list hover over the company link; a link through ppc.clutch.co is an ad. Then read the reviews themselves.
6. On GoWork read the employee reviews, not the stars, and look for layoffs and rotation.
7. Ask who exactly will work on your project, and check those people on LinkedIn.