Company lists · Data refreshed September 2026
Top 25 Startup app developers based in Poland
RevenueBase identified 375 startup app developers headquartered in Poland as of September 2026 and tracks 4,659 professional contacts across them, including 1,316 with verified work emails. Warsaw is the largest hub.
This list covers startup app developers headquartered in Poland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest startup app developers based in Poland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 238 contacts → | ||||
Indirect evidence “Callstack is an AI-native engineering company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 187 contacts → | ||||
Indirect evidence “Miquido is a one-stop software development company that aims to solve business challenges with cutting-edge technology and data-driven research.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 164 contacts → | ||||
Partial evidence “Incode Group is a global provider of JavaScript and TypeScript development with 10+ years of experience, that combines expert developers and a dedicated team constantly expanding.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 161 contacts → | ||||
Indirect evidence “Agente is a design-driven software development company with 11-year experience in creating web and mobile applications.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 143 contacts → | ||||
Indirect evidence “At Brights, we're not just another software development agency but your valued collaborative partners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 118 contacts → | ||||
Indirect evidence “Your Premier Partner in Custom Software Development.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 97 contacts → | ||||
Partial evidence “With a thoughtful approach to our clients’ goals, we help businesses and startups get their innovative software projects done on time.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 78 contacts → | ||||
Partial evidence “We would love to be your long-term partner, taking the entire mobile app development process off your shoulders!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 76 contacts → | ||||
Indirect evidence “Fireart Studio is a boutique design and software development company based in Poland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 75 contacts → | ||||
Indirect evidence “Nomtek is a software development agency that builds mobile and XR applications in a short time-to-market setup.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 60 contacts → | ||||
Indirect evidence “Mainsoft is a software development company, which is focused on web and mobile application development.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 55 contacts → | ||||
Partial evidence “We are a team of web and mobile developers who are passionate about new technologies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 54 contacts → | ||||
Indirect evidence “is a - software development company with on the market and senior Web, Mobile, AI, and DevOps engineers.+ worldwide, we help you build high-quality digital products, scale your…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 53 contacts → | ||||
Indirect evidence “TeaCode is a forward-thinking software development company that combines advanced technologies with AI to create innovative digital solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 50 contacts → | ||||
Indirect evidence “We make your customers feel better with the best experience, they can get, thanks to an innovative collaboration of technology and design.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 50 contacts → | ||||
Indirect evidence “YOUR RELIABLE, RESULTS-DRIVEN PARTNER IN SOFTWARE DEVELOPMENT Yojji is an international leading-edge software development company with 7 years of experience, boasting offices in…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 46 contacts → | ||||
Indirect evidence “Core Logic is a full-stack software house with 15 years of experience in the international software development market.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 44 contacts → | ||||
Partial evidence “Jesteśmy studiem developerskim dla kreatywnych.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 44 contacts → | ||||
Indirect evidence “Does your product need deep AI integration, or a dedicated engineering team to scale faster?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 43 contacts → | ||||
Indirect evidence “Technologies with beauty and power.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 42 contacts → | ||||
Indirect evidence “Unravel is a team of business and product designers as well as creative technologists within Spyrosoft Group.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 40 contacts → | ||||
Indirect evidence “DSpot combines technical mastery with creative design to deliver digital solutions that meet the highest standards of quality and reliability.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 39 contacts → | ||||
Indirect evidence “Work with a team who successfully deliver projects at every stage of a product's lifecycle.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Partial evidence “We are an experienced design & development studio specializing in creating mobile applications, Ruby on Rails apps and responsive web design.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 contacts → | ||||
Indirect evidence “We’re codequest, an AI-driven software studio in Warsaw, Poland, on a mission to turn bold ideas into fast, functional, and beautiful digital products.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: startup app developers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names startup app developers.
- Partial evidence
- Its own public description names part of startup app developers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name startup app developers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 375 startup app developers based in Poland
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Startup app developers based in Poland at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 375 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among startup app developers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Poland whose own description of what they do matches “startup app developers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names startup app developers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among startup app developers, and records with no verified work email. Companies headquartered outside Poland are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,316 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Startup app developers by metro
- Startup app developers in Warsaw89
- Startup app developers in Warszawa41
- Startup app developers in Wroclaw41
- Startup app developers in Krakow37
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names startup app developers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many startup app developers are there based in Poland?
RevenueBase identified 375 startup app developers headquartered in Poland as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Callstack, headquartered in Wroclaw, tops this list with the largest team on record.
Which city has the most startup app developers?
Warsaw leads with 89 headquartered companies, followed by Warszawa (41) and Wroclaw (41).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,316 verified decision-maker contacts tracked across these 375 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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