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Legacy modernization in Kraków, ranked for 2027

Best legacy modernization software houses in Kraków

Przemysław Zalewski · Data snapshot:

  1. 1 Software Mind 63
  2. 2 Grape Up 63
  3. 3 Pragmatic Coders 62

11 companies with evidence of legacy modernization work in Kraków; 5 meet the ranking criteria. Sources: 11 by their Clutch profile, KRS records, available financial statements and employee reviews. I sell the alternative: one senior engineer working with AI agents.

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  • 11 company records
  • 5 with KRS records
  • 4 with a financial statement
  • 5 with an employee review profile
  • 5 ranked

Find your fit

Compare companies

#CompanyPeopleClutchRateFocusScore
1
Software Mind profit 7.9M PLN (2025) GoWork 4/17
1000-99994.9 · 5850–99 USD/hlegacy modernization 10% Java63
2
Grape Up profit 27.1M PLN (2025) 8 layoff mentions
50-2495.0 · 650–99 USD/hlegacy modernization 10% Java63
3
Pragmatic Coders loss 531K PLN (2025) GoWork 8/9
50-2494.8 · 1850–99 USD/hlegacy modernization 20% AWS62
4
SKM Group profit 76K PLN (2025)
10-494.9 · 950–99 USD/hlegacy modernization 20% Azure60
5
Altkom Software GoWork 4/23
250-9994.8 · 2850–99 USD/hlegacy modernization 20% AWS52

The ranking

Software Mind

Large Kraków-based engineering services company building software, cloud and AI systems for telecom, finance and media clients.

63/100

Clutch: 4.9 (58 reviews) Rate: 50–99 USD/h Min. project: 50,000 USD Premier Verified Google: 5.0 (1 review)

Best for: Telecom, finance and media enterprises that need a large, certified multi-role team for a long program.

Verdict. Pick Software Mind for telecom, finance or media programs that need many roles and certifications. For an MVP or a single small app, it is too big.

Pros

  • Net profit of 7,900,000 PLN in 2025 on 254,900,000 PLN revenue. (2026-09-22 · source)
  • Clutch rating of 4.9/5 from 58 client reviews. (2026-10-28 · source)
  • The contact page lists an office in Kraków. (2026-10-28 · source)

Cons

  • GoWork records 4 positive and 17 negative reviews. These are user opinions, not independently established events. (2026-09-22 · source)
  • Declared minimum project: 50,000 USD; compare this entry budget with your scope. (2026-10-28 · source)
Projects & technologies

Source observations

  • Software Mind was founded in 1999 in Kraków as Websoft. Private equity firm Enterprise Investors invested EUR 25 million in 2020 (source).
  • The site claims 1600+ experts and ISO 9001, ISO 14001 and ISO 27001 certification (source).
  • Polish offices are in Kraków, Warsaw, Rzeszów and Wrocław. The contact page also lists the US, Germany, Romania, Moldova and Latin America (source).
  • The legal entity is Software Mind S.A. with KRS 0001180898, which explains the recent registry date in our file (source).
  • The about page claims 1600+ experts, 350+ clients and 25+ years since founding in Kraków in 1999 as Websoft (source)
  • The AI SDLC offer names Claude Code, Codex, Copilot, Claude.md memory files and custom MCP servers (source)
  • Acquisitions listed include ValueLogic, Code Factory (sports betting), Virtualmind, number8, Chmurowisko and Core3 (source)
  • The contact page lists a Wrocław office at Jaworska 11-13 alongside Kraków HQ, Warszawa and Rzeszów (source)

Clients they name: Backbase, T-Mobile, Orange, nShift, CERN, Baillie Gifford

Custom software development AI-accelerated SDLC Cloud and data engineering Dedicated teams and nearshoring Embedded software Security and QA React Angular Java AWS
Software Mind homepage
Homepage of softwaremind.com, screenshot taken October 28, 2026. Content and marks belong to Software Mind.
Facts from the registers
In KRS since
1999
HQ (KRS)
Kraków
Legal form
S.A.
Share capital
1.5M PLN
Revenue
254.9M PLN (2025)
Profit
7.9M PLN (2025)
Team size (Clutch)
1000-9999
The Org
org chart: 640 positions, 1000-5000 employees
Google Business Profile
Software Mind · 5.0 (1 review) (November 10, 2026)
Hiring (last 90 days)
28 engineering roles open (seen November 9, 2026)
Employee reviews (GoWork)
negative (4/17)

Score: 63/100

Transparency 4.5/5 Client reputation 3.7/5 Stability 4.0/5 Specialization 1.0/5 Activity 5.0/5 Hiring 5.0/5

Website Portfolio Clutch KRS LinkedIn GoWork

Sources (20) · Checked November 9, 2026

Grape Up

Enterprise cloud, legacy modernization, data platforms and AI engineering for automotive, finance, manufacturing and aviation companies.

63/100

Clutch: 5.0 (6 reviews) Rate: 50–99 USD/h Min. project: 50,000 USD Google: 4.7 (22 reviews)

Best for: Automotive, finance and aviation enterprises modernizing legacy systems or building a cloud and data platform, with a budget above 50,000 USD.

Verdict. Grape Up is profitable but hard to verify from outside, so ask for named references in your industry before you sign. For a startup MVP it is too big.

Pros

  • Net profit of 27,100,000 PLN in 2025 on 92,300,000 PLN revenue. (2026-09-22 · source)
  • Clutch rating of 5/5 from 6 client reviews. (2026-10-28 · source)
  • Published projects: Cummins.

Cons

  • The Clutch snapshot contains 6 reviews; request references for a comparable project. (2026-10-28 · source)
  • Declared minimum project: 50,000 USD; compare this entry budget with your scope. (2026-10-28 · source)
  • The available contact record does not establish an office in Kraków. Confirm the delivery location before planning on-site work. (2026-10-28 · source)
Projects & technologies

Source observations

  • Headquarters are in Kraków, and Wrocław is one of two Polish development centers. Grape Up has a Wrocław presence but is not a Wrocław company (source).
  • 24 of 25 case studies are anonymized by sector, and Cummins is the only named client. The homepage logo wall shows image files without text names (source).
  • The about page claims over 20 years of operation but gives no year. The Polish KRS entry is from 2014, and Clutch lists 2006 (source).
  • The site shows no ISO or cloud partner certifications, although Grape Up sells sovereign cloud and AI governance products (source).
  • Clutch shows 5.0 from 6 reviews, a $50,000 minimum project, $50 to $99 per hour and 50 to 249 employees (source).
  • Headquarters in Kraków, with development centres in Wrocław (Jaworska 11-13) and Białystok and a US entity in Santa Clara (source)
  • Sells production-grade agentic AI systems for enterprise workflows (source)
  • Offers Cloudboostr Sovereign AI for running LLMs on owned infrastructure (source)
  • Products are presented as a Cloudboostr, Databoostr and Aiboostr suite. (source)

Clients they name: Cummins

Hybrid cloud engineering Application and legacy modernization (G.Tx process) Data platforms AI and advanced analytics Agentic AI product engineering Own products: Cloudboostr, Databoostr, Aiboostr React Python Kubernetes AI
Grape Up homepage
Homepage of grapeup.com, screenshot taken October 28, 2026. Content and marks belong to Grape Up.
Facts from the registers
In KRS since
2014
HQ (KRS)
Kraków
Legal form
sp. z o.o.
Share capital
255K PLN
Owners
Asi Vellamo sp. z o.o.; Thyme Asi Spółki Z Ograniczoną Odpowiedzialnością (+1)
Revenue
92.3M PLN (2025)
Profit
27.1M PLN (2025)
Team size (Clutch)
50-249
The Org
org chart: 102 positions, 50-200 employees
Google Business Profile
Grape Up Sp. z o.o. · 4.7 (22 reviews) (November 10, 2026)
Hiring (last 90 days)
2 engineering roles open (seen November 10, 2026)
Employee reviews (GoWork)
too few (5/17)

Score: 63/100

Transparency 5.0/5 Client reputation 3.6/5 Stability 4.5/5 Specialization 1.0/5 Activity 3.8/5 Hiring 5.0/5

Website Portfolio Clutch KRS LinkedIn GoWork

Sources (18) · Checked November 12, 2026

Pragmatic Coders

Kraków product development company for fintech, digital health and AI products, from discovery to rescue of stalled projects.

62/100

Clutch: 4.8 (18 reviews) Rate: 50–99 USD/h Min. project: 25,000 USD Google: 4.7 (37 reviews)

Best for: Fintech and digital health startups that want one team from product discovery to release.

Verdict. Pick Pragmatic Coders for a fintech or health product that needs product work and engineering in one team. For a small fix or a single feature, a smaller studio will cost less.

Pros

  • Clutch rating of 4.8/5 from 18 client reviews. (2026-10-28 · source)
  • The contact page lists an office in Kraków. (2026-10-28 · source)
  • Polish legal entity record available in KRS: 0000601571. (2026-10-28 · source)

Cons

  • Net loss of 531,400 PLN in 2025 on 23,100,000 PLN revenue. (2026-10-28 · source)
  • GoWork records 8 positive and 9 negative reviews. These are user opinions, not independently established events. (2026-10-28 · source)
  • Declared minimum project: 25,000 USD; compare this entry budget with your scope. (2026-10-28 · source)
Projects & technologies

Source observations

  • The contact page lists Opolska 100 in Kraków and VAT ID PL 6772398603. (source)
  • The company timeline starts in 2014 and says the team had 18 people a year later. (source)
  • The about page says the team grew to 100+ people. (source)
  • The services menu sells fixed-price contracts, project rescue and vibe coding rescue. (source)
  • The timeline dates the company to 2014 in Kraków, with blockchain work from 2017 and fintech as an early specialisation (source)
  • Named case studies include Atom Bank, described as the UK's first fully digital bank, and Kitopi, a cloud kitchen unicorn (source)
  • Recent case studies centre on AI and project takeovers, e.g. an AI-assisted rewrite of Health Folder in 73 hours instead of 2,000 (source)
  • The site says it has hired 400 developers for clients' hubs in Poland, separate from its own 100+ team (source)

Clients they name: Atom Bank, Kitopi, Webinterpret, WithHealth, KodyPay, Frost

Custom software development Product design and UX AI agents and integration Project rescue and takeover Fixed-price contracts Nearshore and build-operate-transfer AI
Pragmatic Coders homepage
Homepage of www.pragmaticcoders.com, screenshot taken October 28, 2026. Content and marks belong to Pragmatic Coders.
Facts from the registers
In KRS since
2016
HQ (KRS)
Kraków
Legal form
sp. z o.o.
Share capital
8K PLN
Owners
3 shareholders (individuals)
Revenue
23.1M PLN (2025)
Loss
531K PLN (2025)
Team size (Clutch)
50-249
The Org
org chart: 51 positions, 50-200 employees
Google Business Profile
Pragmatic Coders · 4.7 (37 reviews) (November 11, 2026)
Hiring (last 90 days)
7 engineering roles open (seen November 10, 2026)
Employee reviews (GoWork)
negative (8/9)

Score: 62/100

Transparency 5.0/5 Client reputation 3.3/5 Stability 2.3/5 Specialization 2.0/5 Activity 5.0/5 Hiring 4.0/5

Website Portfolio Clutch KRS LinkedIn GoWork

Sources (14) · Checked October 28, 2026

SKM Group

Kraków software house modernizing legacy .NET systems and building Azure, Dynamics 365 and store integrations.

60/100

Clutch: 4.9 (9 reviews) Rate: 50–99 USD/h Min. project: 10,000 USD Google: 5.0 (3 reviews)

Best for: Manufacturers and distributors with an aging .NET system or a Plentymarkets shop that needs ERP integration.

Verdict. Pick SKM Group to modernize a .NET or Azure system. For Shopify or low-code, look elsewhere.

Pros

  • Net profit of 76,300 PLN in 2025 on 3,600,000 PLN revenue. (2026-10-28 · source)
  • Clutch rating of 4.9/5 from 9 client reviews. (2026-10-28 · source)
  • Published projects: Verge Sport, XO Care, Hutchinson.
  • The contact page lists an office in Kraków. (2026-10-28 · source)

Cons

  • The Clutch snapshot contains 9 reviews; request references for a comparable project. (2026-10-28 · source)
Projects & technologies

Source observations

  • The about page dates the company to 2008, while the registry entity dates from 2024 (source)
  • Case studies are mostly .NET and Azure work, plus several Plentymarkets store integrations (source)
  • The home page mentions neither Shopify nor low-code (source)
  • The contact page lists one office at ul. Wadowicka 7 in Kraków, matching the registry address (source)

Clients they name: Verge Sport, XO Care, Hutchinson, Krosno Glass, Mercator, Trees4Travel

Legacy software modernization Custom software development IT outsourcing AI services Industry 4.0 systems ERP and e-commerce integrations
SKM Group homepage
Homepage of www.skmgp.com, screenshot taken October 28, 2026. Content and marks belong to SKM Group.
Facts from the registers
In KRS since
2024
HQ (KRS)
Kraków
Legal form
sp. z o.o.
Share capital
10K PLN
Owners
2 shareholders (individuals)
Revenue
3.6M PLN (2025)
Profit
76K PLN (2025)
Team size (Clutch)
10-49
Google Business Profile
SKM Group Software House · 5.0 (3 reviews) (November 11, 2026)
Employee reviews (GoWork)
too few (0/0)

Score: 60/100

Transparency 5.0/5 Client reputation 3.5/5 Stability 3.8/5 Specialization 2.0/5 Activity 2.5/5 Hiring 0.0/5

Website Portfolio Clutch KRS LinkedIn GoWork

Sources (11) · Checked October 28, 2026

Altkom Software

Software partner for banks, insurers and leasing firms offering loan origination, insurance suites, digital banking platforms, UX, data and AI services.

52/100

Clutch: 4.8 (28 reviews) Rate: 50–99 USD/h Min. project: 25,000 USD Google: 5.0 (9 reviews)

Verdict. Strongest on activity and client reputation. Weakest axis: stability (1.5/5).

Pros

  • Clutch rating of 4.8/5 from 28 client reviews. (2026-10-28 · source)
  • Polish legal entity record available in KRS: 0000448403. (2026-10-28 · source)

Cons

  • GoWork records 4 positive and 23 negative reviews. These are user opinions, not independently established events. (2026-11-13 · source)
  • Declared minimum project: 25,000 USD; compare this entry budget with your scope. (2026-10-28 · source)
  • This record has no linked financial statement; this is a coverage gap, not evidence that no filing exists.
Projects & technologies
CX, UX & UI Design UX Audit for Banking Apps Data & AI Services Software Delivery Performance Engineering Security Mobile Apps for Banking Underwriting Automation in Insurance Loan Origination Platform Digital Banking Platform
Facts from the registers
In KRS since
2013
HQ (KRS)
Warsaw, office in Kraków
Legal form
sp. z o.o.
Share capital
110K PLN
Owners
Grupa Altkom S.A.; Fundacja Rodziny Lejman F.r. (+1)
Team size (Clutch)
250-999
Google Business Profile
Altkom Software · 5.0 (9 reviews) (November 11, 2026)
Hiring (last 90 days)
engineering role closed in the last 90 days (last seen November 10, 2026)
Employee reviews (GoWork)
negative (4/23)

Score: 52/100

Transparency 3.5/5 Client reputation 3.6/5 Stability 1.5/5 Specialization 2.0/5 Activity 3.8/5 Hiring 3.0/5

Website Clutch KRS GoWork

Sources (7) · Checked November 13, 2026

All companies

Show all 11 companies
Size: Rate: · 11
#CompanyHQ (KRS)PeopleClutchRateRevenueProfitFocusScoreLinks
1
Software Mind legacy modernization 10% Java
Kraków1000-99994.9 · 5850–99 USD/h254.9M PLN7.9M PLNlegacy modernization 10% Java63Website Portfolio Clutch KRS
2
Grape Up legacy modernization 10% Java
Kraków50-2495.0 · 650–99 USD/h92.3M PLN27.1M PLNlegacy modernization 10% Java63Website Portfolio Clutch KRS
3
Pragmatic Coders legacy modernization 20% AWS
Kraków50-2494.8 · 1850–99 USD/h23.1M PLN-531K PLNlegacy modernization 20% AWS62Website Portfolio Clutch KRS
4
SKM Group legacy modernization 20% Azure
Kraków10-494.9 · 950–99 USD/h3.6M PLN76K PLNlegacy modernization 20% Azure60Website Portfolio Clutch KRS
5
Altkom Software legacy modernization 20% AWS
Warsaw250-9994.8 · 2850–99 USD/hn/an/alegacy modernization 20% AWS52Website Clutch KRS
–
Axon too little client evidence
n/a50-2494.8 · 4225–49 USD/hn/an/alegacy modernization 20% Android37Website Clutch
–
Sombra too little client evidence
n/a250-9994.9 · 4650–99 USD/hn/an/alegacy modernization 10% AWS36Website Clutch
–
Dedicatted too little client evidence
n/a50-2495.0 · 1150–99 USD/hn/an/alegacy modernization 10% AWS35Website Clutch
–
unicrew too little client evidence
n/a50-2495.0 · 6250–99 USD/hn/an/alegacy modernization 10% AWS34Website Clutch
–
CleverCrew too little client evidence
n/a10-495.0 · 825–49 USD/hn/an/alegacy modernization 10% AWS30Website Clutch
–
Inspirit Dev too little client evidence
n/a10-495.0 · 750–99 USD/hn/an/alegacy modernization 10% Java29Website Clutch

Who is not in the top 5, and why

Weak evidence for legacy modernization 6

They meet the data criteria, but the topic rests on a small Clutch share, a few job ads or a single source. They may do it; the data just does not show it.

  • Axon
  • Sombra
  • Dedicatted
  • unicrew
  • CleverCrew
  • Inspirit Dev

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/h 2
50-99 USD/h 9
100-149 USD/h 0
150-199 USD/h 0
Rates declared on Clutch, 11 companies with an office in the city.

Check any agency yourself in 10 minutes

  1. Ask how they keep the old system running while the new one grows, and how they migrate data. A full rewrite with a big-bang switch is the riskiest plan.
  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 in the Financial Documents Repository (free, by KRS number): 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 legacy modernization software houses in Kraków in 2027?

By the score on this page: 1. Software Mind (63), 2. Grape Up (63), 3. Pragmatic Coders (62), 4. SKM Group (60), 5. Altkom Software (52). 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 in the data set.

How much do legacy modernization agencies in Kraków 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 legacy modernization?

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 the Wrocław company 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

  • 1,443 companies in the data set
  • 990 with KRS records
  • 452 with a financial statement
  • 7,436 Clutch listing records
  • 707 employee review profiles on GoWork

Sources: Clutch profiles and listings, KRS records, available financial statements from rejestr.io and the Financial Documents Repository, GoWork reviews, JustJoin.it and No Fluff Jobs listings, and the Wrocław company catalog. Coverage varies by company; dates and links accompany the available records. The 0 to 100 score combines six axes: transparency, client reputation, stability, specialization, activity and hiring in the last 90 days. Paid Clutch placements do not increase the score.

Disclosures

  • Until November 2026 I work at Sanddev (Wrocław) as the founding engineer of its Sandtime product. Sanddev appears in the full table with the same score as everyone else and no editorial favor.
  • No agency pays for a position, there are no affiliate links. 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, source links and dates accompany the available company records.

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 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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Best software houses in Kraków 10 agencies ranked by registers, filings and reviews, out of 266 checked. Best legacy application modernization companies in Poland 10 companies ranked out of 54 with legacy modernization evidence in Poland. Best legacy modernization software houses in Wrocław 10 companies ranked out of 13 with legacy modernization evidence in Wrocław. Best legacy modernization software houses in Warsaw 10 companies ranked out of 20 with legacy modernization evidence in Warsaw. Best React software houses in Kraków 10 companies ranked out of 72 with React evidence in Kraków. Best TypeScript software houses in Kraków 10 companies ranked out of 46 with TypeScript evidence in Kraków. Best Next.js software houses in Kraków 7 companies ranked out of 18 with Next.js evidence in Kraków. Best Node.js software houses in Kraków 10 companies ranked out of 65 with Node.js evidence in Kraków. Best AI agents software houses in Kraków 10 companies ranked out of 57 with AI agents evidence in Kraków. Best MCP servers and AI integrations software houses in Kraków 6 companies ranked out of 11 with MCP servers and AI integrations evidence in Kraków. Best LLM and generative AI software houses in Kraków 10 companies ranked out of 85 with LLM and generative AI evidence in Kraków. Best chatbots and conversational AI software houses in Kraków 10 companies ranked out of 77 with chatbots and conversational AI evidence in Kraków.
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