Company lists · Data refreshed September 2026

Top 25 Startup app developers based in Romania

Name: Startup app developers based in Romania
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 210 companies tracked

RevenueBase identified 210 startup app developers headquartered in Romania as of September 2026 and tracks 1,576 professional contacts across them, including 599 with verified work emails. Cluj-Napoca is the largest hub.

This list covers startup app developers headquartered in Romania, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

210Companies

1,576Contacts tracked

599Verified emails

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The 25 largest startup app developers based in Romania

Ranked by team size

Top 25 of 210 startup app developers based in Romania, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to startup app developers: 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	Rebeldot	Indirect evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	201-500	329 contacts →
	Indirect evidence “Best Places to Work 2023 & 2024 FT Europe Committed to a sustainable future We help global brands design, develop, and launch digital products.” Source: RevenueBase Database · checked Sep 22, 2026
2	Thinslices	Indirect evidence	Iasi, RomaniaHQ checked Sep 22, 2026	51-200	99 contacts →
	Indirect evidence “Thinslices is a full-service product development company with offices in Europe.” Source: RevenueBase Database · checked Sep 22, 2026
3	Ensemble Software Romania	Indirect evidence	Baia Mare, RomaniaHQ checked Sep 22, 2026	51-200	71 contacts →
	Indirect evidence “Ensemble Software is a software consulting company that delivers user experience, development, integration, and QA services for enterprise and consumer-facing applications.” Source: RevenueBase Database · checked Sep 22, 2026
4	Wolfpack Digital Powerful Tech Products Start-To-End	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	51-200	59 contacts →
	Partial evidence “Proud 2024 Webby Award winner in the Responsible AI category and winner of the European Technology Awards for the App Development.” Source: RevenueBase Database · checked Sep 22, 2026
5	Craftingsoftware	Indirect evidence	Cluj Napoca, RomaniaHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “Crafting Software was born in 2015 from our desire to forge great digital products.” Source: RevenueBase Database · checked Sep 22, 2026
6	Tapptitude A Product Studio	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	51-200	44 contacts →
	Partial evidence “Tapptitude is a Product Studio that partners with funded startups and established brands to build interactive, mobile-first digital products that people love to use.” Source: RevenueBase Database · checked Sep 22, 2026
7	Salt & Pepper	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	37 contacts →
	Partial evidence “Salt and Pepper is a full service development company partnering with both startups or large enterprises across Europe and the USA.” Source: RevenueBase Database · checked Sep 22, 2026
8	Luminos Software	Indirect evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “From first-time founders to seasoned tech teams, we help visionaries of all kinds grow their digital products and services.” Source: RevenueBase Database · checked Sep 22, 2026
9	Updivision	Partial evidence	Bucharest, RomaniaHQ checked Sep 22, 2026	11-50	31 contacts →
	Partial evidence “We`re a diverse team of software developers and creative-makers.” Source: RevenueBase Database · checked Sep 22, 2026
10	MCRO	Strong evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	51-200	31 contacts →
	Strong evidence “MCRO is a fast growing company that builds high performant mobile, web and desktop apps for top clients and very promising startups.” Source: RevenueBase Database · checked Sep 22, 2026
11	Linnify	Indirect evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “Linnify is an award-winning global technology partner helping companies build, deploy, and scale digital products and AI agents their experts can trust.” Source: RevenueBase Database · checked Sep 22, 2026
12	Fxbits	Partial evidence	Cluj Napoca, RomaniaHQ checked Sep 22, 2026	11-50	25 contacts →
	Partial evidence “Start your digital product development with a proven team of tech savvies who are passionate about building IT together.” Source: RevenueBase Database · checked Sep 22, 2026
13	Halcyon Mobile	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	51-200	23 contacts →
	Partial evidence “Halcyon Mobile is a full-service company that partners with startups and brands to create amazing mobile and web products since 2005.” Source: RevenueBase Database · checked Sep 22, 2026
14	X2 Mobile	Indirect evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “Your Partner in Bridging the Gap Between Ideas & Digital Products!” Source: RevenueBase Database · checked Sep 22, 2026
15	Codefy Software	Indirect evidence	Iaşi, RomaniaHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “Codefy Software puts in motion the right people, skill sets and technologies to meet your performance objectives and your business needs, assuring support for the entire software…” Source: RevenueBase Database · checked Sep 22, 2026
16	Webchain	Indirect evidence	Timișoara, RomaniaHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “We’re a software development company that helps businesses turn ideas into reliable digital products - guiding them through the full journey, from discovery and consulting to…” Source: RevenueBase Database · checked Sep 22, 2026
17	Cobalt Sign	Partial evidence	Timisoara, RomaniaHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “Cobalt Sign was founded in 2011 by a team of married software developers.” Source: RevenueBase Database · checked Sep 22, 2026
18	Essensys Mready	Partial evidence	Bucuresti, RomaniaHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “Mobile apps strategy, design, development and more.” Source: RevenueBase Database · checked Sep 22, 2026
19	Inventiff. /creative Digital Solutions	Indirect evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Creative digital solutions Inventiff is a full-service tech partner that helps businesses transform ideas into innovative, scalable digital solutions fast and efficiently.” Source: RevenueBase Database · checked Sep 22, 2026
20	Work In Progress	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “Work in Progress is an award winning agency specialised in building apps for iOS and Android for over a decade.” Source: RevenueBase Database · checked Sep 22, 2026
21	Kadeno Solutions	Indirect evidence	Târgu Mureş, RomaniaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Empowering global innovation with 5+ years of expertise in software outsourcing, we excel in delivering tailored mobile and web development services.” Source: RevenueBase Database · checked Sep 22, 2026
22	Tooktech WEB Technologies	Indirect evidence	Timișoara, RomaniaHQ checked Sep 22, 2026	1-10	11 contacts →
	Indirect evidence “Tooktech Web Technologies is a Romania-based software development company specializing in custom digital solutions.” Source: RevenueBase Database · checked Sep 22, 2026
23	Virtual HUB	Indirect evidence	Bucharest, RomaniaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “VIRTUAL HUB offers consulting, development and implementation services for web and/or mobile applications as well as corporate solutions.” Source: RevenueBase Database · checked Sep 22, 2026
24	Smart BOX Digital	Indirect evidence	Maieru, RomaniaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Introducing Smart Box Digital, where innovation meets expertise.” Source: RevenueBase Database · checked Sep 22, 2026
25	Sensidev	Indirect evidence	Timisoara, RomaniaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “We’re a team of experienced professionals in custom software development, equipped with genuine interest and care for the products and services we deliver.” Source: RevenueBase Database · checked Sep 22, 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: 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 210 startup app developers based in Romania

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Startup app developers based in Romania at a glance

As of Sep 22, 2026

38.0%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

19.5%Largest-city concentration · Cluj-Napoca

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

149

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 210 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 Romania 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 Romania 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, 599 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 Cluj-Napoca41
Startup app developers in Bucharest40

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 Romania?

RevenueBase identified 210 startup app developers headquartered in Romania 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?

Rebeldot, headquartered in Cluj-Napoca, tops this list with the largest team on record.

Which city has the most startup app developers?

Cluj-Napoca leads with 41 headquartered companies, followed by Bucharest (40) and Timisoara (17).

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 599 verified decision-maker contacts tracked across these 210 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.