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Kotlin in Wrocław, ranked for 2027

Best Kotlin software houses in Wrocław

Kotlin covers two different jobs: Android apps and JVM back ends. Ask which one the team does, because the people rarely overlap. I found 24 companies with an office in Wrocław that show Kotlin work in at least one source (14 by their Clutch profile, 6 by their open roles on JustJoin.it, 7 by my Wrocław catalog), and checked each in the court register, its latest filing and its employee reviews. 10 meet the ranking criteria and the 9 highest scores are below. I sell the alternative: one senior engineer working with AI agents.

In short: The highest-scoring Kotlin software houses in Wrocław for 2027 are Zaven (score 88), Deviniti (score 87) and Momentum (score 85). The 0 to 100 score combines court register data, the latest financial statement, Clutch client reviews, GoWork employee reviews and open roles on the job boards. Paid Clutch positions do not count.

Get matched offers in 24 hoursSee the top 9Download the data (CSV)

  • 24companies checked
  • 23verified in KRS
  • 20with a financial statement
  • 18with an employee review profile
  • 9ranked

Which company fits your project

  • ZavenKotlin is 15% of the technology focus on its Clutch profile. Score 88, 5.0 on Clutch from 15 reviews, profit in 2025.
  • DevinitiKotlin is 10% of the technology focus on its Clutch profile. Score 87, 5.0 on Clutch from 46 reviews, profit in 2025.
  • MomentumKotlin is 10% of the technology focus on its Clutch profile. Score 85, 4.9 on Clutch from 45 reviews, profit in 2025.
  • Spyrosoft BSGKotlin is 15% of the technology focus on its Clutch profile. Score 81, 4.9 on Clutch from 30 reviews, profit in 2024.
  • One senior instead of a teamIf the project fits one person with coding agents, compare the cost 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 Kotlin work; the share on Clutch is what the company declares.

The top 9 at a glance

Click a column to sort.

#CompanyPeopleClutchRateFocusScore
1
Zavenprofit 1.1M PLN (2025)GoWork 6/1
10-495.0 · 1525–49 USD/hCustom software88
2
Devinitiprofit 30.4M PLN (2025)
250-9995.0 · 4650–99 USD/hAtlassian consulting87
3
Momentumprofit 1.7M PLN (2025)12 layoff mentions
50-2494.9 · 4550–99 USD/hHealthcare web85
4
Spyrosoft BSGprofit 4.5M PLN (2024)GoWork 2/5
50-2494.9 · 3050–99 USD/hWhite-label OTT platform81
5
Droids On Roidsloss 1.9M PLN (2025)review cluster
50-2494.9 · 7850–99 USD/hNative iOS and Android app79
6
oakfusionprofit 550K PLN (2024)review cluster
10-494.9 · 825–49 USD/hJava75
7
Sparkbitloss 26K PLN (2025)
10-494.9 · 14100–149 USD/hPython69
8
hero/dotloss 39K PLN (2025)
50-2494.9 · 1650–99 USD/hReact68
9
Angry Nerdsloss 146K PLN (2023)GoWork 2/28
50-2494.9 · 2250–99 USD/hAndroid/iOS64

The ranking

The order below is the score from five axes: transparency, client reputation, stability, specialization and activity. Here specialization measures how strong the Kotlin evidence is. Weights and the full method are on the guide page.

Financial figures come from the latest filing of the Polish company. For subsidiaries of foreign groups they can be far from the size of the real business. Open the sources under each entry before you shortlist.

Zaven

Process-driven software house building web and mobile apps for construction, real estate and utilities companies, mainly Nordic.

Clutch: 5.0 (15 reviews)Rate: 25–49 USD/hMin. project: 10,000 USD

Best for: A web or mobile product for a construction, real-estate or utilities company that wants a small, steady team in Wrocław and does not need a brand name.

Pros

  • Profitable every year in the filings we checked, with the latest statement showing a profit of 1.1M PLN on 12.7M PLN of revenue.
  • Employee reviews on GoWork are positive (6 positive, 1 negative), the rarest thing on this list.
  • Twenty named case studies, most of them Norwegian construction and marine clients, so you can check the work.
  • Publishes its own scale on the about page: roughly ten projects a year. Few agencies admit how small they are.
  • Still hiring on the job boards (2 open roles on October 27, 2026).

Cons

  • Since September 2026 fully owned by Multishoring Holdings, a Warsaw data and integration consultancy, so strategy is decided outside Wrocław.
  • Fifteen Clutch reviews only, and the declared rate band of 25 to 49 USD is the offshore band, which raises the question of who writes the code.
  • A team of 10 to 49 cannot staff several roles at once; expect a queue for bigger projects.
  • Founding year differs between the site, Clutch and the court register.

From their website and Clutch profile

  • The site publishes its scale, with roughly 10 projects per year and about EUR 3M turnover in 2025 (source).
  • The site lists twenty named case studies, most of them Norwegian construction and marine clients such as Fonn, Grasp and Safran (source).
  • Age claims do not line up. The site says 15 years in business, Clutch says founded 2011, and the KRS entry in our file dates from 2014 (source).
  • The site shows no certifications, awards or partner badges (source).

Clients they name: Volve, Fonn, Grasp, Safran, Dionach, Bonduelle

Custom softwareMobile appsGenerative AICustom MCP developmentProduct UX/UI designStaff augmentationReactVueAngular.NET

Verdict. The most transparent small software house in Wrocław. It is profitable, its own people rate it well, and it publishes its size. Hire it for one well-defined product, not for a platform that needs five roles.

Deviniti

Large Wrocław IT firm selling Atlassian and monday.com consulting, its own Marketplace apps and generative AI services to enterprises.

Clutch: 5.0 (46 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Best for: Anything around Atlassian, Jira, monday.com or a migration to Atlassian Cloud, and enterprise projects that need a 250+ company behind them.

Pros

  • The biggest and oldest company in the ranking: founded 2004, revenue of 407.8M PLN and a profit of 30.4M PLN in the 2025 filing.
  • Atlassian Platinum partner with its own Marketplace apps, which means product engineering discipline on top of consulting.
  • A 5.0 rating on Clutch from 46 reviews, and named case studies with banks and retailers.
  • Owned by three private individuals (KRS), with no foreign parent company.

Cons

  • Most of the revenue is Atlassian licensing and tool consulting, not custom software; for a greenfield product you are a side business.
  • Employee reviews are mixed (8 positive, 13 negative) for a company this size.
  • Client numbers on its own site do not agree with each other, and many case studies are anonymized.
  • Minimum project of 25,000 USD and enterprise processes: slow for a startup.

From their website and Clutch profile

  • Deviniti is the oldest and largest firm in the set. It was founded in 2004, has 330 IT experts and released its first Atlassian Marketplace app in 2012 (source).
  • The business centers on Atlassian, monday.com and Freshworks consulting plus its own apps, with generative AI layered on top (source).
  • Client counts conflict on one page, with 15,000 clients in the intro, 10,000 in the 2023 milestone and 236 organizations in the client section (source).
  • Many case studies are anonymized (a bank, a parcel company, a healthcare company), so only a few names can be verified (source).

Clients they name: Huuuge Games, Credit Agricole Bank Polska, IPF International Limited, Ceneo.pl, Super-Pharm

Atlassian consultingAtlassian appsGenerative AImonday.com implementationCloud migrationAI managed servicesAI

Verdict. If your problem lives in Jira, Confluence or monday.com, this is the obvious call in Wrocław. For a custom product, read the case studies first and ask which team you would get.

Momentum

Wrocław healthcare software and AI studio, formerly Applover, that builds HIPAA-ready apps and wearable integrations for HealthTech companies.

Clutch: 4.9 (45 reviews)Rate: 50–99 USD/hMin. project: 50,000 USD

Best for: Healthtech companies and clinics that need a patient app, an EHR integration or medical AI from a team that works only in healthcare.

Pros

  • Momentum reported a profit of 1.7M PLN on 25.6M PLN of revenue in 2025.
  • Healthcare apps and FHIR integrations have been its niche since 2020. The site shows an ISO 13485 certificate.
  • Clutch shows 4.9 from 45 reviews. Named case studies include LabPlus, Caily and Villa Medica.
  • Momentum publishes open-source health tools such as Open Wearables, so you can read its code before you sign.

Cons

  • Employee reviews are mixed (23 positive, 19 negative), and 12 of them mention layoffs or cuts.
  • Venture funds own the company through ASI vehicles in KRS, so investors set the growth targets.
  • Clutch lists a minimum project of 50,000 USD. Some Clutch reviews still describe Applover, the old brand.

From their website and Clutch profile

  • Applover rebranded to Momentum in 2024 and narrowed its focus to healthcare, while Clutch reviews still refer to Applover (source: https://www.themomentum.ai/about and https://clutch.co/profile/momentum-previously-applover).
  • ISO 13485 and HIPAA appear only as logos, with no certificate number or certifying body (source).
  • The site gives no headcount and cites 220+ delivered projects and 100+ healthcare applications (source).
  • The HQ address, Gen. Sikorskiego 26 in Wrocław, is the same building Droids On Roids lists (source: https://www.themomentum.ai/lets-talk and https://www.thedroidsonroids.com/).
  • Clutch reports 70 percent of clients in the medical industry, a $50,000 minimum project and $50 to $99 per hour (source).
  • The site promises a reply within 24 hours (source).

Clients they name: LabPlus, Bennabis Health, Egis, Steppie, Villa Medica, Caily

Healthcare web developmentHealthcare mobile developmentHealthcare AI implementationWearable app developmentHIPAA-compliant infrastructure and securityEHR and HL7 FHIR integrationAIRubyDockerPython

Verdict. Pick Momentum for a healthcare product in Wrocław, where its compliance work counts. Outside healthcare look elsewhere, and ask about the layoff mentions on the first call.

Spyrosoft BSG

Video and OTT streaming apps for broadcasters, sports leagues and telcos, part of the listed Spyrosoft Group.

Clutch: 4.9 (30 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Best for: Broadcasters and streaming services that need OTT, connected-TV and video apps, with named references at major European channels.

Pros

  • Named case studies with large broadcasters such as ITV and CANAL+, which is rare for a Wrocław agency.
  • 4.9 on Clutch from 30 reviews, revenue of 40M PLN with a profit of 4.5M PLN in the 2024 filing.
  • Part of Spyrosoft S.A., a listed Polish group, with offices in Bergen, Copenhagen and Gothenburg for Nordic clients.

Cons

  • Narrow focus: the whole offer is video and OTT. For a non-media product you are the wrong client.
  • Employee reviews are negative (2 positive, 5 negative) and no open roles on the boards at the last snapshot.
  • Headcount figures on the site contradict each other; the latest filing we have is for 2024, not 2025.

From their website and Clutch profile

  • Case studies name broadcasters such as Nordisk Film+, TV 2, ITV and CANAL+, which few Wrocław agencies can show (source).
  • The whole site is about OTT and video apps, so the firm suits media clients more than general software projects (source).
  • Headcount figures are inconsistent, with 200+ video specialists on the homepage, over 1,900 group employees on the about page and a '+1900K' typo in the stats block (source).
  • The site lists no ISO or partner tier certifications. The partners page names only technology vendors (Wowza, Brightcove, Mux, Axinom) (source).
  • Clutch shows 4.9 from 30 reviews, $50 to $99 per hour and a $25,000 minimum project. Its founding year of 2010 predates the 2016 KRS entry (source).

Clients they name: Nordisk Film+, TV 2 Play, Eleven Sports, ITV, CANAL+, Futsal Ekstraklasa

White-label OTT platformOTT managed servicesCustom video app development (Roku, Smart TV, Vega OS, HbbTV)Connected TV app developmentPOIS ad control for streamingAI solutions for mediaReactNode.js.NETPython

Verdict. For a TV channel or a streaming service, it is the only Wrocław agency with named broadcaster references. For any other product, pick from the rest of the top 10.

Droids On Roids

Wrocław mobile and web app studio that builds Flutter, Kotlin and iOS products for retail, fintech and healthcare brands.

Clutch: 4.9 (78 reviews)Rate: 50–99 USD/hMin. project: 75,000 USDPremier Verified

Pros

  • 4.9 on Clutch from 78 reviews
  • Hiring: 2 open roles on JustJoin.it and No Fluff Jobs (2026-10-28)

Cons

  • Loss of -1.9M PLN (2025)
  • 7 GoWork reviews mention layoffs or cuts
  • A cluster of positive GoWork reviews: 10 within 14 days from 2020-02-10
  • Foreign-owned

From their website and Clutch profile

  • The UK-based Apadmi Group has owned the company since early 2025, so it no longer operates as an independent Polish studio (source).
  • The home page claims 13 years, while the team page claims over 14 years and a start in 2011 (source: https://www.thedroidsonroids.com/ and https://www.thedroidsonroids.com/meet-us).
  • Several portfolio cards leave the client unclear, and the Footasylum card repeats the Co-op description (source).
  • Clutch shows 78 reviews at 4.9, a $75,000 minimum project and $50 to $99 per hour. It also lists San Francisco and London locations missing from the site (source).
  • The site lists no company certifications (source).

Clients they name: Domino's UK and Ireland, Co-op, Carlsberg Polska, CCC, United Utilities, Sykes Cottages

Native iOS and Android app developmentCross-platform development (Flutter, Kotlin Multiplatform)Web app developmentIoT app developmentProduct designProduct strategy workshops and discoveryKotlinFlutterSwiftIoT

Verdict. Strongest on transparency and specialization. Weakest axis: stability (2.0/5).

oakfusion

Clutch: 4.9 (8 reviews)Rate: 25–49 USD/hMin. project: 25,000 USD

Pros

  • Profit of 550K PLN (2024)
  • Owned by private individuals (KRS)

Cons

  • A cluster of positive GoWork reviews: 9 within 14 days from 2023-02-20
Java

Verdict. Strongest on transparency and stability. Weakest axis: activity (2.0/5).

Sparkbit

Clutch: 4.9 (14 reviews)Rate: 100–149 USD/hMin. project: 5,000 USD

Pros

  • Owned by private individuals (KRS)

Cons

  • Loss of -25K PLN (2025)
PythonMachine learningAI

Verdict. Strongest on transparency and specialization. Weakest axis: activity (1.5/5).

hero/dot

Clutch: 4.9 (16 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Pros

  • n/a

Cons

  • Loss of -39K PLN (2025)
ReactNode.jsVueAngular.NETKotlinPythonFlutterSwiftAzure

Verdict. Strongest on transparency and specialization. Weakest axis: stability (1.8/5).

Angry Nerds

Clutch: 4.9 (22 reviews)Rate: 50–99 USD/hMin. project: 10,000 USDVerified

Pros

  • Hiring: 5 open roles on JustJoin.it and No Fluff Jobs (2026-10-28)

Cons

  • Loss of -146K PLN (2023)
  • Mostly negative employee reviews on GoWork (2 positive, 28 negative)
IoTAzureJavaScript

Verdict. Strongest on activity and specialization. Weakest axis: stability (1.0/5).

Every company we checked

The table below has the 24 companies with Kotlin evidence in Wrocław, including the ones that do not qualify for the ranking, with the reason. Sort by any column.

Show all 24 companies
Size: Rate: · 24
#CompanyHQ (KRS)PeopleClutchRateRevenueProfitFocusScoreLinks
1
ZavenCustom software
Wrocław10-495.0 · 1525–49 USD/h12.7M PLN1.1M PLNCustom software88WebsitePortfolioClutchKRS
2
DevinitiAtlassian consulting
Wrocław250-9995.0 · 4650–99 USD/h407.8M PLN30.4M PLNAtlassian consulting87WebsitePortfolioClutchKRS
3
MomentumHealthcare web
Wrocław50-2494.9 · 4550–99 USD/h25.6M PLN1.7M PLNHealthcare web85WebsitePortfolioClutchKRS
4
Spyrosoft BSGWhite-label OTT platform
Wrocław50-2494.9 · 3050–99 USD/h40M PLN4.5M PLNWhite-label OTT platform81WebsitePortfolioClutchKRS
5
Droids On RoidsNative iOS and Android app
Wrocław50-2494.9 · 7850–99 USD/h22.7M PLN-1.9M PLNNative iOS and Android app79WebsitePortfolioClutchKRS
6Wrocław10-494.9 · 825–49 USD/h6.2M PLN550K PLNJava75WebsiteClutchKRS
7
SparkbitPython
Warsaw10-494.9 · 14100–149 USD/h8.1M PLN-26K PLNPython69WebsiteClutchKRS
8Warsaw50-2494.9 · 1650–99 USD/h8.3M PLN-39K PLNReact68WebsiteClutchKRS
9
Angry NerdsAndroid/iOS
Wrocław50-2494.9 · 2250–99 USD/h266K PLN-146K PLNAndroid/iOS64WebsiteClutchKRS
–
CSHARKtoo little client evidence
Wrocław250-9994.9 · 1950–99 USD/h80.9M PLN5.2M PLNCustom software86WebsitePortfolioClutchKRS
–
N-iXbody leasing
Kraków1000-99994.8 · 3550–99 USD/h15.5M PLN1.2M PLN.NET79WebsiteClutchKRS
–
Scalobody leasing
Wrocław250-9994.7 · 3350–99 USD/h162.2M PLN8.1M PLNIT outsourcing79WebsiteClutchKRS
–
BrainForge ITtoo little client evidence
Wrocław10-495.0 · 1850–99 USD/h1.8M PLN158K PLNCustom software78WebsitePortfolioClutchKRS
–
Sii Polandbody leasing
Warsaw1000-99994.9 · 44n/a2155.9M PLN261M PLNwszystko78WebsiteClutchKRS
–
Techstack companybody leasing
Wrocław50-2495.0 · 4750–99 USD/h24.6M PLN1.6M PLNReact78WebsiteClutchKRS
–
Siili Solutionsbody leasing
Wrocław250-9994.9 · 750–99 USD/h37.3M PLN3.4M PLNweb76WebsiteClutchKRS
–
Emerlinebody leasing
Warsaw250-9994.9 · 2550–99 USD/h2.6M PLN-253K PLNReact64WebsiteClutchKRS
–
Coretekabody leasing
Wrocław50-2494.9 · 1025–49 USD/h1.6M PLN-57K PLNC++60WebsiteClutchKRS
–
cloudatustoo little client evidence
n/an/ano Clutch profilen/a7.7M PLN1.9M PLN58WebsiteKRS
–
JetSoftProtoo little client evidence
Wrocław50-2494.8 · 4450–99 USD/hn/an/aReact58WebsiteClutchKRS
–
Alcosi Grouptoo little client evidence
Wrocław50-2495.0 · 350–99 USD/h451K PLN-211K PLNJavaScript55WebsiteClutchKRS
–
Nexio Managementtoo little client evidence
n/a250-999no Clutch profile50–99 USD/hn/an/aPython47WebsiteClutchKRS
–
Cody Solutionstoo little client evidence
n/a250-9995.0 · 1550–99 USD/hn/an/aAI43Clutch
–
Softroidstoo little client evidence
n/an/ano Clutch profilen/an/an/aReact37WebsiteKRS

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 9, and why

Paid placements and “serves the city” without an office

On the Clutch city list the first positions are bought with ads (links through ppc.clutch.co) or a “serves” entry. These companies have no office in the city according to KRS or their own site, so they are not ranked here.

None in this city.

Struck off the register or in liquidation

They still show up on other people’s “best of” lists. Here they appear only in the full table.

None in this city.

Body leasing, product companies and other services

Renting people into someone else’s team is a different service from delivering a project. A product company, a marketing agency or an SAP partner does not sell software projects either. They are in the full table with a label.

  • N-iX · Kraków
  • Scalo
  • Sii Poland · Warsaw
  • Techstack company
  • Siili Solutions
  • Emerline · Warsaw
  • Coreteka

On the city’s Clutch list, but based elsewhere

Clutch shows them on this city’s page, but KRS and our data do not confirm an office here. They are ranked in their own city.

None in this city.

Ranked 11th and below

They qualify but score lower. Their full rows are in the table below; the gap between 10th and 15th is often a few points.

  • Cody Solutions

Too little client evidence, under 10 people, sole traders

Without 5 Clutch reviews or 2M PLN of revenue in a filing there is no fair way to compare a company with the rest. That is a data gap, not a verdict.

  • CSHARK
  • BrainForge IT
  • cloudatus
  • JetSoftPro
  • Alcosi Group
  • Nexio Management
  • Softroids

What they charge

On Clutch, the companies in this table most often declare 50 to 99 USD an hour. The rate is what the agency bills; the developer on your project is paid less than half of it.

For comparison, my own rate is 36 to 54 USD an hour (45 USD base, pricing). The cost estimator shows what a project like yours costs with and without coding agents.

25-49 USD/h350-99 USD/h17100-149 USD/h1150-199 USD/h0
Rates declared on Clutch, 21 companies with an office in the city. In brackets: companies “serving” the city without an office.

Check any agency yourself in 10 minutes

  1. Kotlin covers two different jobs: Android apps and JVM back ends. Ask which one the team does, because the people rarely overlap.
  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.

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Questions

What are the best Kotlin software houses in Wrocław in 2027?

By the score on this page: 1. Zaven (88), 2. Deviniti (87), 3. Momentum (85), 4. Spyrosoft BSG (81), 5. Droids On Roids (79). The score adds up transparency in the court register, client reviews on Clutch, profit and stability in the latest filing, specialization and current hiring. The full table shows every company checked.

How much do Kotlin agencies in Wrocław charge?

Most companies in this table declare 50 to 99 USD an hour on Clutch. My own rate as a senior engineer working with AI agents is 36 to 54 USD an hour.

How do you know a company does Kotlin?

From at least one of three sources: the service, industry and framework shares on the Clutch profile, the skills in open roles on JustJoin.it, or my own Wrocław catalog. Companies with two or three sources score higher on specialization. The software house finder shows the same tags for every company.

Did any company pay to be on this list?

No. There are no paid placements and no affiliate links. The only business interest is mine: I sell senior engineering as the alternative to an agency.

Can I get my company added or corrected?

Yes. Write to ciunkos@gmail.com with the KRS number and the correction.

How this ranking was made

  • 1,485companies in the data set
  • 709checked in the National Court Register
  • 454with a financial statement
  • 7,436Clutch listing positions read, paid ones marked
  • 451employee review profiles on GoWork
  • 2+months of data collection, since September 2026

The company list comes from a full read of the Clutch city listing (every page, with paid positions marked by their ppc.clutch.co links), the ITCORNER cluster, Google results and job ads. Every company was checked in the National Court Register (KRS) for its seat, legal form, capital and shareholders, in rejestr.io for revenue and profit from the latest filing, on GoWork for employee sentiment, layoff mentions and review clusters, and on the JustJoin.it and No Fluff Jobs boards for open roles and the stack they actually pay for. The 0 to 100 score is five axes with published weights: transparency, client reputation, stability, specialization, activity. A paid Clutch placement does not raise the score.

Disclosures

  • I worked at Sanddev (Wrocław) as the founding engineer of its Sandtime product until November 2026. Sanddev appears in the full table with the same score as everyone else and no editorial favor.
  • As a contractor I have talked with, or applied to, some of the agencies on these lists. None of them knew about this ranking and none of it changed a score.
  • No agency pays for a position, there are no affiliate links, and no company has seen its entry before publication. If any of that changes, the disclosure changes first.
  • My business interest is on every page: I sell senior engineering with AI agents as the alternative to hiring an agency.
  • Written with AI (Claude) from the data set. Every number in the editorial text is checked automatically against the company record or the research notes, and every top entry was read against the company’s own website. Sources and check dates are under each entry.

Spotted an error or want your company added? Write to ciunkos@gmail.com. Full methodology and weights →

Przemysław Zalewski

About the author

Przemysław Zalewski, a senior full-stack engineer in Wrocław with 15+ years of shipping software. I ran this catalog for two months while choosing my own next clients, so every number here was useful to me before it was useful to you. I build with coding agents, work with clients in the US and the UK, and I sell the alternative to the agencies on this list.

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