Company lists · Data verified August 2026

Top 25 Custom software development firms based in Estonia

Name: Custom software development firms based in Estonia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 206 companies tracked

There are 206 custom software development firms headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 2,851 professional contacts across them, including 892 with verified work emails and 34 with mobile numbers. Tallinn is the largest hub.

This list covers custom software development firms headquartered in Estonia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

206Companies

2,851Contacts tracked

892Verified emails

34Mobile numbers

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The 25 largest custom software development firms based in Estonia

Ranked by team size

Top 25 of 206 custom software development firms based in Estonia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Helmes	Tallinn	1,001-5,000	413	280
2	IT Craft	Tallinn	201-500	218	26
3	Cleveroad	Tallinn	201-500	127	20
4	Ralabs	Tallinn	51-200	119	49
5	Breakwater Technology	Tallinn	51-200	108	1
6	Sapientpro	n/a	51-200	75	35
7	Weblegends	Tallinn	51-200	69	1
8	Evne Developers	Tallinn	51-200	68	3
9	Codeborne	Tallinn	51-200	60	45
10	Xdata Group	Tallinn	51-200	57	28
11	Avalanche Laboratory	Tallinn	51-200	53	46
12	Brocoders On-Demand Technical Team	Tallinn	51-200	49	12
13	Rezet IT Service Company	Tallinn	51-200	49	2
14	Iglu OÜ	Tallinn	51-200	48	39
15	Ronas IT	Tallin	51-200	48	22
16	Mifort	Tallinn	51-200	38	3
17	Perpetio	Tallinn	51-200	35	10
18	Muteki Group	Haabersti Linnaosa	51-200	34	8
19	Aktors	Tallinn	11-50	33	10
20	Embrox OÜ	Tallinn	51-200	31	13
21	OPUS	Tallinn	51-200	29	16
22	Sonerim	Eu Tallinn	11-50	28	7
23	Agileworks Software Development Company	Tallinn	11-50	27	12
24	Bamboo Agile	Tallinn	51-200	25	1
25	Wafer Technologies	Tartu	11-50	23	10

Showing 25 of 206 custom software development firms based in Estonia

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Custom software development firms based in Estonia at a glance

As of Aug 28, 2026

1-10Median size (employees)

TallinnLargest hub · 153 HQs

34Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

105

11-50

51-200

201-500

1,001-5,000

Custom software development firms by metro

Metro	Companies
Custom software development firms in Tallinn	153
Custom software development firms in Tallin	11
Custom software development firms in Tartu	9
Custom software development firms in Kuressaare	2
Custom software development firms in Ili	2
Custom software development firms in Kuusalu Vald	2
Custom software development firms in Headquarters	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “custom software development firms”, with match quality audited by blind human judging, and headquartered in Estonia.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many custom software development firms are there based in Estonia?

There are 206 custom software development firms headquartered in Estonia as of August 2026 (RevenueBase).

What is the largest company on this list?

Helmes, headquartered in Tallinn, tops this list with the largest team on record.

Which city has the most custom software development firms?

Tallinn leads with 153 headquartered companies, followed by Tallin (11) and Tartu (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 892 verified decision-maker contacts tracked across these 206 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.