Company lists · Data verified August 2026

Top 25 Custom software development agencies based in Estonia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 256 companies tracked

There are 256 custom software development agencies headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 3,807 professional contacts across them, including 1,104 with verified work emails and 44 with mobile numbers. Tallinn is the largest hub.

This list covers custom software development agencies 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.

256Companies

3,807Contacts tracked

1,104Verified emails

44Mobile numbers

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The 25 largest custom software development agencies based in Estonia

Ranked by team size

Top 25 of 256 custom software development agencies 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	Hqsoftware	Tallinn	51-200	110	25
6	Soft Industry Alliance LTD	Tallinn	51-200	109	37
7	Breakwater Technology	Tallinn	51-200	108	1
8	Finest	Tallinn	51-200	94	50
9	Sapientpro	n/a	51-200	75	35
10	Weblegends	Tallinn	51-200	69	1
11	Evne Developers	Tallinn	51-200	68	3
12	Codeborne	Tallinn	51-200	60	45
13	Xdata Group	Tallinn	51-200	57	28
14	Avalanche Laboratory	Tallinn	51-200	53	46
15	Brocoders On-Demand Technical Team	Tallinn	51-200	49	12
16	Rezet IT Service Company	Tallinn	51-200	49	2
17	Iglu OÜ	Tallinn	51-200	48	39
18	Ronas IT	Tallin	51-200	48	22
19	Flawless Group	City Centre	51-200	46	2
20	Mifort	Tallinn	51-200	38	3
21	Perpetio	Tallinn	51-200	35	10
22	Muteki Group	Haabersti Linnaosa	51-200	34	8
23	Aktors	Tallinn	11-50	33	10
24	Embrox OÜ	Tallinn	51-200	31	13
25	OPUS	Tallinn	51-200	29	16

Showing 25 of 256 custom software development agencies based in Estonia

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Custom software development agencies based in Estonia at a glance

As of Aug 28, 2026

11-50Median size (employees)

TallinnLargest hub · 188 HQs

44Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

127

11-50

51-200

201-500

1,001-5,000

Custom software development agencies by metro

Metro	Companies
Custom software development agencies in Tallinn	188
Custom software development agencies in Tallin	17
Custom software development agencies in Tartu	13
Custom software development agencies in Talinn	2
Custom software development agencies in Ili	2
Custom software development agencies in Kuusalu Vald	2
Custom software development agencies in Riga	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 agencies”, 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 agencies are there based in Estonia?

There are 256 custom software development agencies 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 agencies?

Tallinn leads with 188 headquartered companies, followed by Tallin (17) and Tartu (13).

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 1,104 verified decision-maker contacts tracked across these 256 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.