Company lists · Data verified August 2026

Top 25 Custom software development companies based in Estonia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 195 companies tracked

There are 195 custom software development companies headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 3,095 professional contacts across them, including 928 with verified work emails and 35 with mobile numbers. Tallinn is the largest hub.

This list covers custom software development companies 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.

195Companies

3,095Contacts tracked

928Verified emails

35Mobile numbers

Unlock all 195 companies Free account · no credit card · 2 minutes

The 25 largest custom software development companies based in Estonia

Ranked by team size

Top 25 of 195 custom software development companies 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	Soft Industry Alliance LTD	Tallinn	51-200	109	37
6	Breakwater Technology	Tallinn	51-200	108	1
7	Sapientpro	n/a	51-200	75	35
8	Weblegends	Tallinn	51-200	69	1
9	Evne Developers	Tallinn	51-200	68	3
10	Codeborne	Tallinn	51-200	60	45
11	Xdata Group	Tallinn	51-200	57	28
12	Avalanche Laboratory	Tallinn	51-200	53	46
13	Brocoders On-Demand Technical Team	Tallinn	51-200	49	12
14	Rezet IT Service Company	Tallinn	51-200	49	2
15	Iglu OÜ	Tallinn	51-200	48	39
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	Softkit	n/a	11-50	32	2
21	Embrox OÜ	Tallinn	51-200	31	13
22	OPUS	Tallinn	51-200	29	16
23	Sonerim	Eu Tallinn	11-50	28	7
24	Agileworks Software Development Company	Tallinn	11-50	27	12
25	303-Team	Tallinn	11-50	26	1

Showing 25 of 195 custom software development companies based in Estonia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 928 reachable decision-makers.

Free account · no credit card

See all 195 companies

Custom software development companies based in Estonia at a glance

As of Aug 28, 2026

11-50Median size (employees)

TallinnLargest hub · 145 HQs

35Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Custom software development companies by metro

Metro	Companies
Custom software development companies in Tallinn	145
Custom software development companies in Tallin	10
Custom software development companies in Tartu	8
Custom software development companies in Talinn	2
Custom software development companies in Ili	2
Custom software development companies in Kuusalu Vald	2
Custom software development companies 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 companies”, 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 companies are there based in Estonia?

There are 195 custom software development companies 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 companies?

Tallinn leads with 145 headquartered companies, followed by Tallin (10) and Tartu (8).

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 928 verified decision-maker contacts tracked across these 195 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.

Ready to reach these companies? Verified emails and direct dials for all 195 custom software development companies based in Estonia. Start with a free account, no credit card.

Get the full list

Related lists

Custom software development companies by geography

Browse the directory

Browse: Companies home · All Estonia lists · All Custom software development companies lists · New lists

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.