Company lists · Data refreshed September 2026

Top 25 Ruby on rails development companies based in Poland

Name: Ruby on rails development companies based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 94 companies tracked

RevenueBase identified 94 ruby on rails development companies headquartered in Poland as of September 2026 and tracks 760 professional contacts across them, including 232 with verified work emails. Warsaw is the largest hub.

This list covers ruby on rails development companies 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 17, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

94Companies

760Contacts tracked

232Verified emails

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The 25 largest ruby on rails development companies based in Poland

Ranked by team size

Top 25 of 94 ruby on rails development companies based in Poland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to ruby on rails development companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Johnnybros	Indirect evidence	Gdańsk, PolandHQ checked Sep 17, 2026	51-200	82 contacts →
	Indirect evidence “We are the team - we work together to create web applications starting from the design stage through programming and finishing with positioning.” Source: RevenueBase Database · checked Sep 17, 2026
2	Droids On Roids	Partial evidence	Wroclaw, PolandHQ checked Sep 17, 2026	51-200	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 17, 2026
3	Rubyroid Labs	Strong evidence	Warsaw, PolandHQ checked Sep 17, 2026	51-200	63 contacts →
	Strong evidence “Rubyroid Labs is a Software Development business, specializing in Ruby on Rails and mobile development, eCommerce and web design.” Source: RevenueBase Database · checked Sep 17, 2026
4	Mainsoft	Strong evidence	Warsaw, PolandHQ checked Sep 17, 2026	51-200	60 contacts →
	Strong evidence “Mainsoft is a software development company, which is focused on web and mobile application development.” Source: RevenueBase Database · checked Sep 17, 2026
5	Abyron	Indirect evidence	Bialystok, PolandHQ checked Sep 17, 2026	11-50	39 contacts →
	Indirect evidence “We are a team of specialists in IT sphere.” Source: RevenueBase Database · checked Sep 17, 2026
6	Visuality	Indirect evidence	Warszawa, PolandHQ checked Sep 17, 2026	11-50	36 contacts →
	Indirect evidence “Visuality is a business-driven full-stack software house.” Source: RevenueBase Database · checked Sep 17, 2026
7	Lunar Logic	Indirect evidence	Krakow, PolandHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Lunar Logic is an Agile Software House that crafts web applications using the latest cutting edge technology (i.e.” Source: RevenueBase Database · checked Sep 17, 2026
8	Smartym PRO	Partial evidence	Warsaw, PolandHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “Smartym Pro is a full-cycle custom software development company headquartered in Warsaw, Poland (EU).” Source: RevenueBase Database · checked Sep 17, 2026
9	Curiosum	Indirect evidence	Poznań, PolandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “At Curiosum, Elixir is at the heart of everything we do.” Source: RevenueBase Database · checked Sep 17, 2026
10	Arkency	Partial evidence	Wrocław, PolandHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Expert Rails Developers Who Understand Your Business.” Source: RevenueBase Database · checked Sep 17, 2026
11	DEV And Deliver	Indirect evidence	Krowodrza, PolandHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Dev and Deliver is a JavaScript-focused software house based in Kraków, Poland, building end-to-end digital products with Next.js, NestJS, and React.” Source: RevenueBase Database · checked Sep 17, 2026
12	Thinksoft	Partial evidence	Warsaw, PolandHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Thinksoft LLC is a European software development company founded by a group of experienced and qualified specialists, who have been in the IT industry since 2005.” Source: RevenueBase Database · checked Sep 17, 2026
13	Genuitek	Partial evidence	Wrocław, PolandHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “Genuitek is a software development company providing consulting services for international clients.” Source: RevenueBase Database · checked Sep 17, 2026
14	Beside The Park	Partial evidence	Warsaw, PolandHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “Beside The Park is a software development house located in Warsaw, where in a friendly and informal atmosphere we create software used by millions of people.” Source: RevenueBase Database · checked Sep 17, 2026
15	2n IT	Partial evidence	Białystok, PolandHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “2N IT is a web development software-house specializing in web and mobile applications.” Source: RevenueBase Database · checked Sep 17, 2026
16	Coffee MUG	Indirect evidence	Katowice, PolandHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “We build high-quality web applications using best practices and cutting edge technologies.” Source: RevenueBase Database · checked Sep 17, 2026
17	Aloteq	Partial evidence	Bochnia, PolandHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “ALOTEQ LLC is a consultancy and custom development company that aims at creating mobile, web, and desktop applications for arising business needs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Thebrain Software House	Partial evidence	Lublin, PolandHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “TheBrain Software House is a web and mobile application development company that covers everything from devops to automated testing, low- and high-level programming, back-end and…” Source: RevenueBase Database · checked Sep 17, 2026
19	Netkodo	Partial evidence	Toruń, PolandHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “NETKODO – Custom Software & Shopify Experts for Agencies, Startups & E-Commerce We are a specialized software house delivering custom development and Shopify solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
20	Spark Solutions	Strong evidence	Warsaw, PolandHQ checked Sep 17, 2026	51-200	8 contacts →
	Strong evidence “We are your Ruby on Rails, JavaScript & Spree Commerce Developers http://sparksolutions.co/ We're the team behind the Spree Open Source project ( https://spreecommerce.org )- the…” Source: RevenueBase Database · checked Sep 17, 2026
21	Smartshack Sp. Z O.O	Strong evidence	Kraków, PolandHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong evidence “Technologies we use include Ruby on Rails, CSS3, HTML5, Android, iOS providing smart solutions, websites, mobile app design and custom software development at the highest level.” Source: RevenueBase Database · checked Sep 17, 2026
22	Atenbi	Indirect evidence	Warsaw, PolandHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “We build digital travel tech products, empowering your company to streamline operations, enhance productivity, and achieve sustainable growth.” Source: RevenueBase Database · checked Sep 17, 2026
23	Widefix	Indirect evidence	Warsaw, PolandHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Looking for a reliable partner to build or maintain your web application?” Source: RevenueBase Database · checked Sep 17, 2026
24	Nuclinet	Indirect evidence	Bydgoszcz, PolandHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Nowoczesne strony internetowe napędzające biznes, aplikacje mobilne i webowe, wdrożenia produktów dla Saas’ów i start-up’ów.” Source: RevenueBase Database · checked Sep 17, 2026
25	Master KEY	Indirect evidence	Lodz, PolandHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Yeah, there are millions of software companies out there.” Source: RevenueBase Database · checked Sep 17, 2026

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: ruby on rails development companies. 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 ruby on rails development companies.
Partial evidence: Its own public description names part of ruby on rails development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ruby on rails development companies. 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 94 ruby on rails development companies based in Poland

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Ruby on rails development companies based in Poland at a glance

As of Sep 17, 2026

30.5%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

17.0%Largest-city concentration · Warsaw

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 94 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 ruby on rails development companies, 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 “ruby on rails development companies”. 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 ruby on rails development companies), 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 ruby on rails development companies, 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, 232 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 17, 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.

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 ruby on rails development companies, 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 ruby on rails development companies are there based in Poland?

RevenueBase identified 94 ruby on rails development companies 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?

Johnnybros, headquartered in Gdansk, tops this list with the largest team on record.

Which city has the most ruby on rails development companies?

Warsaw leads with 16 headquartered companies, followed by Krakow (10) and Wroclaw (9).

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 232 verified decision-maker contacts tracked across these 94 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 17, 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.