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C++ and embedded in Kraków, ranked for 2027

Best C++ and embedded software houses in Kraków

Przemysław Zalewski·Data verified: ·22 min read

Embedded projects need hardware in the loop, so ask about their lab, test rigs and certification experience. Rates are higher than web work and estimates slip when hardware changes. I found 19 companies with an office in Kraków that show C++ and embedded work in at least one source (11 by their Clutch profile, 8 by their open roles on JustJoin.it, 1 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 6 highest scores are below. I sell the alternative: one senior engineer working with AI agents.

In short: The highest-scoring C++ and embedded software houses in Kraków for 2027 are Intellias (score 84), AMC TECH (score 81) and Montrose Software (score 78). 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 6Download the data (CSV)

  • 19companies checked
  • 12verified in KRS
  • 11with a financial statement
  • 11with an employee review profile
  • 6ranked

Which company fits your project

  • IntelliasC++ and embedded is 10% of the technology focus on its Clutch profile. Score 84, 4.9 on Clutch from 30 reviews, profit in 2025.
  • AMC TECHC++ and embedded is 30% of the technology focus on its Clutch profile. Score 81, 5.0 on Clutch from 17 reviews, profit in 2025.
  • Montrose SoftwareC++ and embedded is 20% of the technology focus on its Clutch profile. Score 78, 4.9 on Clutch from 8 reviews, loss in 2025.
  • byVoiceC++ and embedded is 20% of the technology focus on its Clutch profile. Score 75, 5.0 on Clutch from 13 reviews, profit in 2025.
  • 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 C++ and embedded work; the share on Clutch is what the company declares.

The top 6 at a glance

Click a column to sort.

#CompanyPeopleClutchRateFocusScore
1
Intelliasprofit 8.4M PLN (2025)GoWork 26/28
1000-99994.9 · 3050–99 USD/hProduct engineering84
2
AMC TECHprofit 27K PLN (2025)
50-2495.0 · 1750–99 USD/hEmbedded and application software81
3
Montrose Softwareloss 25K PLN (2025)GoWork 8/3
50-2494.9 · 850–99 USD/hCustom software78
4
byVoiceprofit 241K PLN (2025)
10-495.0 · 1350–99 USD/hAI voice agents75
5
Rumble Fishprofit 604K PLN (2025)
10-494.6 · 950–99 USD/hBlockchain and Web368
6
Ultimate Systemsloss 3K PLN (2025)
10-495.0 · 2250–99 USD/h61

The ranking

The order below is the score from five axes: transparency, client reputation, stability, specialization and activity. Here specialization measures how strong the C++ and embedded 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.

Intellias

Ukrainian-founded product engineering company with a Kraków entity, working on mobility, navigation, fintech and retail platforms.

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

Best for: Automotive, navigation and fintech companies that need a large engineering team with domain experience and a budget above 50,000 USD.

Pros

  • The Kraków company reported 152.3M PLN of revenue and a profit of 8.4M PLN in its 2025 filing.
  • The site names domain clients such as HERE, TomTom and HelloFresh.
  • Clutch shows 4.9 from 30 reviews, and Intellias has held ISO 27001 since 2017.
  • The job boards showed 13 open roles, all remote.

Cons

  • The Polish company belongs to Iteality Limited, and the group was founded in Ukraine in 2002.
  • Employee reviews are negative on balance (26 positive, 28 negative), with 4 mentions of layoffs.
  • Three of the four Polish offices are coworking spaces, and all 13 open roles are remote.

From their website and Clutch profile

  • Intellias was founded in 2002. The about page says its first office outside Ukraine opened in Zurich in 2010 and does not mention Poland (source).
  • The site lists four Polish offices in Kraków, Warsaw, Łódź and Wrocław, and the last three are in coworking spaces (source).
  • Named clients include HERE, TomTom, HelloFresh and Zooplus (source).
  • Horizon Capital invested in 2018 (source).

Clients they name: HERE, TomTom, HelloFresh, Zooplus, Syngenta, Omio

Product engineeringAI and generative AIData engineeringCloud and application modernizationQuality engineeringManaged supportPythonAIAWSAzure
Intellias homepage
Homepage of intellias.com, screenshot taken October 28, 2026. Content and marks belong to Intellias.

Verdict. Pick Intellias for mobility and fintech engineering, where HERE and TomTom are checkable references. The Polish entity delivers for a foreign group, so agree in writing who leads your project.

AMC TECH

Kraków engineering firm designing electronics, embedded software, mechanics and production lines for industrial and consumer products.

Clutch: 5.0 (17 reviews)Rate: 50–99 USD/hMin. project: 10,000 USD

Best for: Manufacturers and hardware startups that need electronics, firmware and an app designed together.

Pros

  • AMC TECH builds hardware, firmware and software under one roof.
  • Clutch shows 17 reviews with a perfect average, from industrial clients such as Solaris and Analog Devices.
  • The homepage names industrial brands such as Bosch, Siemens, Alstom Power and Pesa.
  • AMC TECH declares an ISO 9001 quality system.

Cons

  • AMC TECH reported a profit of only 27K PLN on 11.5M PLN of revenue in 2025.
  • The registry company dates from 2015, while Clutch says 1992, so part of the history belongs to earlier entities.
  • GoWork has few employee opinions, the latest from 2023.

From their website and Clutch profile

  • AMC TECH combines electronics, mechanics and software. Sister brands AMC Vibro and AMC Works handle machine monitoring and assembly (source).
  • The about page claims 20+ years, 100+ engineers, 150+ clients and an ISO 9001 quality system (source).
  • The foreign contacts in Denmark, the US, Switzerland and the UK are partner firms. The company itself sits at Pilotów 2E in Kraków (source).
  • Clutch gives 1992 as the founding year and lists 17 reviews, including Solaris and Analog Devices. The registry entity in our file dates from 2015 (source).

Clients they name: Bosch, Siemens, Volvo, Solaris, Alstom Power, Pesa

Embedded and application softwareElectronics designIndustrial design and mechanicsProduction line designIoT and Industry 4.0Technology partnership for startups
AMC TECH homepage
Homepage of amctech.pl, screenshot taken October 28, 2026. Content and marks belong to AMC TECH.

Verdict. Take AMC TECH when your product has a circuit board or a sensor. For a pure web or SaaS product, pick a software house.

Montrose Software

Kraków engineering team with a New Jersey sales office that builds data, finance and e-commerce software for US clients.

Clutch: 4.9 (8 reviews)Rate: 50–99 USD/hMin. project: n/a

Best for: US finance and e-commerce firms looking for an ISO-certified Kraków team for data and reporting work.

Pros

  • The site names US finance clients such as Wells Fargo and Lord Abbett across 18 case studies.
  • Lists ISO/IEC 27001:2022 and ISO 9001:2015, which regulated clients often require.
  • The last snapshot showed 2 remote roles on JustJoin. GoWork reviews lean positive, with 8 positive and 3 negative.

Cons

  • The 2025 statement shows a small loss of 25K PLN on 10.5M PLN of revenue.
  • Clutch has only 8 reviews for a company that claims over 200 clients since 2012.
  • Clutch lists New Jersey as headquarters, so a Polish buyer may first deal with a US-facing sales team.

From their website and Clutch profile

  • The projects page shows 18 case studies, mostly US finance and e-commerce clients such as Wells Fargo and Lord Abbett, and claims over 200 clients since 2012 (source).
  • The home page shows ISO/IEC 27001:2022 and ISO 9001:2015, plus addresses in Kraków and South Orange, NJ (source).
  • Clutch names South Orange, NJ as headquarters, while KRS places the Polish company in Kraków (source).
  • Clutch shows 4.9 from 8 reviews, with reported budgets from 180,000 USD up to 1 million USD (source).

Clients they name: Wells Fargo, Lord Abbett, Climate Bonds Initiative, Freshpair, Home Partners, Kids Discover

Custom software developmentWeb and e-commerce developmentMobile app developmentAI and machine learningCloud engineering and DevOpsQA and testingDockerKubernetesReactJavaScript
Montrose Software homepage
Homepage of montrosesoftware.com, screenshot taken October 28, 2026. Content and marks belong to Montrose Software.

Verdict. Use Montrose Software for finance data, reporting or e-commerce migrations aimed at the US market. Skip it if you want a Poland-focused partner with many public reviews.

byVoice

Kraków company selling an AI voice agent platform for inbound and outbound calls, plus custom agent builds.

Clutch: 5.0 (13 reviews)Rate: 50–99 USD/hMin. project: 10,000 USD

Best for: Small service firms that want an AI phone agent answering calls, set up by the vendor.

Pros

  • Clutch shows 5.0 from 13 reviews.
  • Profitable in 2025, with 241K PLN of profit on 5.2M PLN of revenue.
  • The public price list starts at $29 a month, so you can test before a custom build.
  • The footer gives the legal entity, KRS and address, and they match the registry.

Cons

  • The site is a product page for voice agents and shows no general software portfolio.
  • No client company is named on the site, so references must come from Clutch.
  • The ranking topics C++, embedded and media do not appear anywhere on the site.

From their website and Clutch profile

  • The site sells AI voice agents that answer and place calls, with plans from $29 a month (source)
  • The site names no client companies, and its testimonials give only personal names and job titles (source)
  • The footer shows ByVoice Sp. z o.o., KRS 0000916645, at ul. Zamknięta 10 in Kraków, matching the registry (source)
  • The about page does not mention C++, embedded work or media clients (source)
AI voice agentsConversational IVRTelephony integration and routingVoice AI consultingAPI integrationsWhite-label platformAI
byVoice homepage
Homepage of www.byvoice.io, screenshot taken October 28, 2026. Content and marks belong to byVoice.

Verdict. Pick byVoice for an AI phone agent on top of your existing telephony. Skip it for general product development.

Rumble Fish

Kraków software house focused on blockchain, DeFi and Stellar products, with AWS and AI work on the side.

Clutch: 4.6 (9 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Best for: Crypto and fintech startups that need smart contracts, DeFi integrations or Stellar apps from a small team.

Pros

  • Blockchain makes up 70% of its Clutch service mix, and the case studies match.
  • Ships its own Stellar tooling, including Soroban Scan, funded by community grants.
  • Profitable in 2025, with 604K PLN of profit on 8.7M PLN of revenue.
  • The site names clients such as Merkl, Tari and MakerDAO.

Cons

  • Clutch shows 4.6 from 9 reviews, a thin sample.
  • GoWork has 4 negative entries against 1 positive one.
  • The ranking topic C++ and embedded has no support on the site, which lists Rust instead.

From their website and Clutch profile

  • The team page says the company was established in 2017 and lists 40 developers and 57 projects (source)
  • Case studies cover porting Merkl to Stellar, bridging the Tari token to Ethereum DeFi and a ZK music rights registry (source)
  • The company runs its own Stellar tools, Soroban Scan and a prices API, funded by Stellar Community Fund grants (source)
  • The services list includes Rust web apps and does not mention C++ or embedded work (source)

Clients they name: Merkl, Tari, MakerDAO, Revelator, Zbay, Space Inch

Blockchain and Web3 developmentSmart contracts and DeFiZero-knowledge proofsAWS cloudAI assistants and RAGWeb and mobile apps
Rumble Fish homepage
Homepage of www.rumblefish.dev, screenshot taken October 28, 2026. Content and marks belong to Rumble Fish.

Verdict. Pick Rumble Fish for blockchain or DeFi work. For embedded or C++ projects, look elsewhere.

Ultimate Systems

Clutch: 5.0 (22 reviews)Rate: 50–99 USD/hMin. project: 25,000 USD

Pros

  • Owned by private individuals (KRS)

Cons

  • Loss of -3K PLN (2025)

Verdict. Strongest on transparency and client reputation. Weakest axis: stability (1.0/5).

Every company we checked

The table below has the 19 companies with C++ and embedded evidence in Kraków, including the ones that do not qualify for the ranking, with the reason. Sort by any column.

Show all 19 companies
Size: Rate: · 19
#CompanyHQ (KRS)PeopleClutchRateRevenueProfitFocusScoreLinks
1
IntelliasProduct engineering
Kraków1000-99994.9 · 3050–99 USD/h152.3M PLN8.4M PLNProduct engineering84WebsitePortfolioClutchKRS
2
AMC TECHEmbedded and application software
Kraków50-2495.0 · 1750–99 USD/h11.5M PLN27K PLNEmbedded and application software81WebsitePortfolioClutchKRS
3
Montrose SoftwareCustom software
Kraków50-2494.9 · 850–99 USD/h10.5M PLN-25K PLNCustom software78WebsitePortfolioClutchKRS
4
byVoiceAI voice agents
Kraków10-495.0 · 1350–99 USD/h5.2M PLN241K PLNAI voice agents75WebsiteClutchKRS
5
Rumble FishBlockchain and Web3
Kraków10-494.6 · 950–99 USD/h8.7M PLN604K PLNBlockchain and Web368WebsitePortfolioClutchKRS
6
Kraków10-495.0 · 2250–99 USD/h161K PLN-3K PLN61WebsiteClutchKRS
–
iTeamlytoo little client evidence
Kraków10-495.0 · 750–99 USD/h11.7M PLN337K PLNProduct delivery82WebsiteClutchKRS
–
N-iXbody leasing
Kraków1000-99994.8 · 3550–99 USD/h15.5M PLN1.2M PLN.NET81WebsiteClutchKRS
–
Sii Polandbody leasing
Warsaw1000-99994.9 · 44n/a2155.9M PLN261M PLNwszystko80WebsiteClutchKRS
–
Software Mindtoo little client evidence
Kraków1000-99994.9 · 5850–99 USD/h254.9M PLN7.9M PLNCustom software73WebsitePortfolioClutchKRS
–
Spyrosoft Grouptoo little client evidence
Wrocław1000-99995.0 · 2n/a22 PLNn/aautomotive58ClutchKRS
–
Svitla Systemstoo little client evidence
n/a1000-99994.8 · 3225–49 USD/hn/an/aPython50WebsiteClutch
–
CHI Softwaretoo little client evidence
n/a250-9995.0 · 3250–99 USD/hn/an/aAI47WebsiteClutch
–
codebluetoo little client evidence
n/a10-495.0 · 1125–49 USD/hn/an/a45WebsiteClutch
–
Infolettoo little client evidence
n/a50-2495.0 · 2n/an/an/aJava45WebsiteClutch
–
Lemberg Solutionstoo little client evidence
n/a50-2494.8 · 2750–99 USD/hn/an/aAI45WebsiteClutch
–
Developextoo little client evidence
n/a250-9994.9 · 1125–49 USD/hn/an/aAI44WebsiteClutch
–
VirtusLabtoo little client evidence
n/a250-9994.4 · 850–99 USD/hn/an/aPython43WebsiteClutchKRS
–
Appliscaletoo little client evidence
n/a50-2495.0 · 225–49 USD/hn/an/aJava40Clutch

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 6, 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
  • Sii Poland · Warsaw

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.

  • CHI Software
  • codeblue
  • Lemberg Solutions
  • Developex

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.

  • iTeamly
  • Software Mind
  • Spyrosoft Group · Wrocław
  • Svitla Systems
  • Infolet
  • VirtusLab
  • Appliscale

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/h450-99 USD/h12100-149 USD/h0150-199 USD/h0
Rates declared on Clutch, 16 companies with an office in the city. In brackets: companies “serving” the city without an office.

Check any agency yourself in 10 minutes

  1. Embedded projects need hardware in the loop, so ask about their lab, test rigs and certification experience. Rates are higher than web work and estimates slip when hardware changes.
  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.

Get offers from the best-fit agencies

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Questions

What are the best C++ and embedded software houses in Kraków in 2027?

By the score on this page: 1. Intellias (84), 2. AMC TECH (81), 3. Montrose Software (78), 4. byVoice (75), 5. Rumble Fish (68). 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 C++ and embedded 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 C++ and embedded?

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
  • 708checked in the National Court Register
  • 453with 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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Best software houses in Kraków10 agencies ranked by registers, filings and reviews, out of 281 checked.Best C++ and embedded software companies in Poland10 companies ranked out of 89 with C++ and embedded evidence in Poland.Best C++ and embedded software houses in Warsaw7 companies ranked out of 25 with C++ and embedded evidence in Warsaw.Best TypeScript software houses in Kraków10 companies ranked out of 49 with TypeScript evidence in Kraków.Best Next.js software houses in Kraków7 companies ranked out of 18 with Next.js evidence in Kraków.Best Node.js software houses in Kraków10 companies ranked out of 66 with Node.js evidence in Kraków.Best AI agents software houses in Kraków10 companies ranked out of 55 with AI agents evidence in Kraków.Best startups and MVPs software houses in Kraków10 companies ranked out of 49 with startups and MVPs evidence in Kraków.Best React Native software houses in Kraków10 companies ranked out of 48 with React Native evidence in Kraków.Best mobile app development software houses in Kraków10 companies ranked out of 58 with mobile app development evidence in Kraków.Best e-commerce software houses in Kraków7 companies ranked out of 34 with e-commerce evidence in Kraków.Best fintech software houses in Kraków10 companies ranked out of 53 with fintech evidence in Kraków.
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