List of Engineering Companies in Estonia

Last updated 26 October 2026

There are 4,893 engineering companies in Estonia, one in every 77 Estonian companies. Most of them are small: nearly all have one to four people, and only 7 firms employ 50 people or more. Three in five of all engineering firms are based in Tallinn, Tartu, Pärnu, Kuressaare and Peetri. Below you find the largest engineering firms in Estonia, the cities where they cluster, how many started this year and which are the oldest. The full list with addresses, phone numbers and email is in our Estonian company database or through the Company Data API.

4,893 companies indexed · Data counted on 26 October 2026

Companies4,8931 in77 Estonian companiesCities689Largest cityTallinn 2,113Sole traders3%Employees1-4 (95%)Revenue< $100K (51%)Email5%Phone10%Website16%

Build your list Get a free sample

9 / 10 from 88 verified reviews

A live sample of the list

A live view of all 4,893 engineering firms, sorted by revenue. Narrow it by region, city, employee size, revenue, legal form or founding year, or search a firm by name.

Repligen Estonia OURepligen Estonia OU

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Repligen Estonia OU	Estonia	Jüri	Uus-ringi Tee 10	Harju Maakond	75301	*****.com	2016	$15,494,607	60	Corporation	46	14121227
2	AS Infragate Eesti	Estonia	Tallinn	Maealuse Tn 2/3	Harju Maakond	12618	*****.ee	2002	$10,512,132	51	Corporation	3	10845129
3	Filter Solutions OU	Estonia	Peetri	Laike Tee 9	Harju Maakond	75312	*****.ee	2018	$10,069,345	57	Corporation	13	14532752
4	Ou Inseneriburoo Steiger	Estonia	Tallinn	Manniku Tee 104/1	Harju Maakond	11216	*****.ee	2005	$7,329,166	54	Corporation	2	11206437
5	Alvigo AS	Estonia	Tallinn	Peterburi Tee 2c/1	Harju Maakond	11415	*****.ee	1996	$5,826,936	116	Corporation	4	10087858
6	Saksa Automaatika OU	Estonia	Lehmja	Gaasi Tee 3	Harju Maakond	75306	*****.ee	2009	$5,614,816	23	Corporation	2	11666995
7	Sweco Estonia AS	Estonia	Tallinn	Valukoja Tn 8/2	Harju Maakond	11415	*****.ee	2006	$5,593,952	44	Corporation	337	11304200
8	Innopolis Insenerid OU	Estonia	Tartu	Sobra Tn 54	Tartu Maakond	50106	*****.ee	2006	$5,484,994	37	Corporation	2	11297032
9	Osauhing Reaalprojekt	Estonia	Viljandi	Tallinna Tn 45	Viljandi Maakond	71008	*****.ee	2001	$5,274,850	107	Corporation	6	10765904
10	Osauhing Sba Service	Estonia	Lehmja	Gaasi Tee 3	Harju Maakond	75306	*****.ee	2001	$5,150,006	23	Corporation	8	10790256
11	SKEPAST&PUHKIM OU	Estonia	Tallinn	Laki Poik 2	Harju Maakond	12915	*****.ee	2006	$5,084,498	39	Corporation	2	11255795
12	K-Projekt Aktsiaselts	Estonia	Tallinn	Ahtri Tn 6a	Harju Maakond	10151	*****.ee	2011	$5,067,708	47	Corporation	N/A	12203754
13	Inseneriburoo Telora OU	Estonia	Tallinn	Parnu Mnt 141	Harju Maakond	11314	*****.ee	2017	$5,017,865	36	Corporation	N/A	14197510
14	Teleplan Estonia Osauhing	Estonia	Tallinn	Aiandi Tn 13	Harju Maakond	12918	*****.com	2010	$4,854,428	39	Corporation	2	11922234
15	Rmenergy OU	Estonia	Peetri	Vana-tartu Mnt 79a	Harju Maakond	75312	*****.ee	2023	$4,746,629	6	Corporation	N/A	16650148
16	Aindpro Automation OU	Estonia	Jüri	Arukula Tee 57a	Harju Maakond	75301	*****.ee	2023	$4,435,983	21	Corporation	N/A	16716002
17	Osauhing SIRKEL&MALL	Estonia	Tallinn	Laki Tn 5	Harju Maakond	10621	*****.ee	2005	$4,327,025	34	Corporation	5	11124774
18	Projektiburoo OU	Estonia	Tallinn	Veerenni Tn 38b	Harju Maakond	10138	*****.ee	2018	$3,992,037	22	Corporation	N/A	14426010
19	Trium OU	Estonia	Tallinn	Paldiski Mnt 5-12	Harju Maakond	10137	N/A	2021	$3,989,719	3	Corporation	N/A	16159286
20	P.P. Ehitusjarelevalve OU	Estonia	Tallinn	Mustamae Tee 4	Harju Maakond	10616	*****.ee	2006	$3,988,559	30	Corporation	N/A	11270056
21	Mistralwind OU	Estonia	Tallinn	Lootsa Tn 1a	Harju Maakond	11415	N/A	2021	$3,858,737	68	Corporation	4	16390842
22	Vmbh OU	Estonia	Tartu	Siili Tn 32	Tartu Maakond	50104	N/A	2016	$3,757,683	37	Corporation	5	14070719
23	Osauhing Teamster	Estonia	Tallinn	Tapri Tn 9	Harju Maakond	11415	*****.ee	2003	$3,715,005	19	Corporation	N/A	10923314
24	Aktsiaselts Teede Tehnokeskus	Estonia	Tallinn	Vaike-manniku Tn 26	Harju Maakond	11216	*****.ee	2000	$3,675,595	39	Corporation	19	10701123
25	Ou Keskkonnaprojekt	Estonia	Tartu	Ringtee Tn 12	Tartu Maakond	50105	*****.ee	2001	$3,590,240	37	Corporation	N/A	10769210

Showing 25 of 4,893 companies

Request Free Sample

Show the numbers for

Engineering firms in Tallinn

Tallinn has 2,113 engineering companies and engineering firms, 1.3% of all 168,501 Tallinn companies and 4% below the national share. Nearly all Tallinn firms have fewer than five people; 4 have 50 or more. 102 new firms were entered in 2026, 0 date from before 1990.

Size

1-4 staff: 1,941 · 94%
5-9: 78 · 4%
10-19: 31 · 1%
20-49: 20 · 1.0%
50+: 4 · 0.2%

Legal form

Sole traders: 37 · 2%
Partnerships: 6 · 0.3%
OÜ and AS: 2,059 · 97%
Other or none: 11 · 0.5%

Of the Estonian total: 43.2%
Of all Tallinn companies: 1.3%
Against the national share: 1.0×

New

Entered 2026 so far: 102
Entered 2025: 142
Of Estonia's 2026 entries: 55.1%

Old

Before 1990: 0 · 0%
1990 or later: 2,113 · 100%
Of Estonia's pre-1990 firms: 0%

Reachable

Email: 125 · 6%
Phone: 288 · 14%
Website: 391 · 19%

Revenue (USD)

Under $100K: 860 · 45%
$100K-$500K: 925 · 48%
$500K-$1M: 73 · 4%
$1M and more: 64 · 3%

Largest

Free Tallinn sample

Firm sizes in Estonia

Of the 4,815 Estonian engineering firms with a known headcount, 4,598 (95%) have one to four people, 128 have five to nine, 82 have ten to 49 and 7 have 50 or more. Most firms turn over under $100,000 a year (2,272, 51%).

EU size bands · the grey line shows all Estonian companies

Micro under 104,726 98%
Small 10 to 4982 2%
Medium 50 to 2497 0.1%
Large 250+0 0.0%

Grey line: the share among all Estonian companies (97% have under ten staff).

firms turn over more than $5 million a year; 3 more than $10 million.

185

firms were entered in 2026.

How many engineering companies are there in Estonia?

Engineering companies and engineering firms in Estonia

4,893

26 October 2026

There are 4,893 engineering companies and engineering firms in Estonia in our data (26 October 2026). That is one in every 77 Estonian companies. About one new firm is entered in the register every working day this year (185 so far in 2026).

Structure

Single-site firms: 4,722 97%
Head offices: 171
Branch offices: 0

Classification

NACE Rev. 2 code 7112. Our platform filter is NACE Rev. 2 7112.

4,687 of the 4,893 are OÜ and AS (96%); 165 are sole traders. They come from e-Business Register (äriregister) and our Estonian register data, through the Company Data API.

Largest engineering firms in Estonia

The biggest firms by staff and by revenue, the largest in Tallinn. Click a name for the record.

Osauhing Reaalprojekt is the largest engineering firm in Estonia by headcount. 7 firms employ 50 people or more; 0 employ 100 or more.

1Viljandi107 staff
2Tallinn85 staff
3Tallinn68 staff
4Jüri60 staff
5Peetri57 staff
6Tallinn54 staff
7Tallinn51 staff
8Tallinn51 staff
9Tallinn47 staff
10Tallinn44 staff

By employee size · 4,815 firms with a known headcount

Employees	Firms	%
1-4	4,598	95%
5-9	128	3%
10-19	50	1%
20-49	32	0.7%
50-99	7	0.1%
100-199	0	0%
200-499	0	0%
500-999	0	0%
1,000+	0	0%

95% have 1 to 4 people; 32 have 20 to 49; 7 have 50 or more.

By yearly revenue (USD)

Revenue	Firms	%
< $100K	2,272	51%
$100K-$500K	2,004	45%
$500K-$1M	120	3%
$1M-$5M	84	2%
$5M-$10M	10	0.2%
$10M-$50M	3	<0.1%

51% under $100,000; 84 between $1M and $5M; 13 above $5M.

Where in Estonia?

Tallinn has the most engineering companies in Estonia (2,113), ahead of Tartu (400), Pärnu (95), Kuressaare (68) and Peetri (65). Together the five hold three in five of them.

Cities by number of firms

689 Estonian cities have at least one engineering firm; 48 have ten or more; 403 have exactly one. Click a city to set the lens.

The oldest firms in Estonia

Our data holds 0 Estonian engineering firms from before 1900, 0 from before 1950 and 0 from before 1990.

1996
1. Tallinn
1996
1. Näpi
1996
1. Tallinn
1996
1. Tallinn
1996
1. Tallinn
1996
1. Tallinn

Fewer than five firms date from before 1950, so the timeline starts with the oldest firms before 1990.

Older than you

Live tool

Move the slider to a year. Two live counts, scoped to this industry.

1990

Estonian engineering firms date from before 1990

were entered in 1990

How they compare

Next to related industries

There are 6 technology companies for every engineering firm in Estonia.

Industry	Firms	Website	1-4 staff
Technology Companies	27,897	12%	95%
Manufacturing Companies	16,054	26%	76%
Construction Companies	13,992	14%	85%
Software Companies	12,839	12%	93%
Engineering Companies	4,893	16%	94%
Energy Companies	1,546	13%	91%

In other countries

Country	Firms	Per 1,000 cos.
India	298,864	7.7
The USA	218,900	3.4
Brazil	171,091	5.9
Germany	155,424	22.9
The UK	95,793	10.8
Estonia	4,893	13.0

More countries →

Free sample: engineering firms in Europe

Sole traders or OÜ: how they are organised

One in thirty Estonian engineering firms work as sole traders, against 7% of all Estonian companies. Nearly all are OÜ and AS.

Sole traders (FIE)1653%
Partnerships180.4%
OÜ and AS4,68796%
No form on record or other230.5%

Single-site: 97%
Head offices: 171
Branches: 0

All Estonian companies: 7% sole traders, 1% partnerships, 78% OÜ and AS.

Newcomers in Estonia in 2026

185 engineering firms were entered in the Estonian register so far in 2026, about one per working day, after 311 in 2025. Estonia as a whole saw 18,095 new companies in 2026, so this industry takes 1.0% of the inflow.

2302022
3022023
3072024
3112025
1852026 so far

184 of this year's 185 are OÜ and AS.

The biggest newcomers of 2026

The year is the register entry; an established firm that changes legal form appears as new.

1Tallinn21 staff
2Tallinn4 staff
3Tallinn4 staff
4Tallinn4 staff
5Kullametsa4 staff

How reachable are they?

Engineering firms are harder to reach than the average Estonian company: 10% list a phone number and 16% a website.

Email256 5%
Phone491 10%
Website802 16%

Grey line: all Estonian companies (email 6%, phone 12%, website 14%).

The full list with these fields is in our Estonian company database.

Frequently asked questions

How many engineering companies are there in Estonia?

There are 4,893 engineering companies and engineering firms in Estonia in our data, counted on 26 October 2026. That is one in every 77 Estonian companies.

Which is the largest engineering firm in Estonia?

Osauhing Reaalprojekt in Viljandi, with 107 staff. By revenue Repligen Estonia OU in Jüri leads with $15.5 million a year.

Which Estonian city has the most engineering companies?

Tallinn, with 2,113, ahead of Tartu (400), Pärnu (95), Kuressaare (68) and Peetri (65).

How many engineering firms are there in Tallinn?

2,113, which is 1.3% of all 168,501 Tallinn companies and 4% below the national share.

How big is a typical engineering firm?

Small. 95% of the 4,815 firms with a known headcount have one to four people; 7 have 50 or more. Most turn over under $100,000 a year.

Are Estonian engineering companies sole traders or companies?

One in thirty (165) are sole traders, 0.4% are partnerships and 96% (4,687) are OÜ and AS.

How many engineering firms started in 2026?

185 were entered in the Estonian register so far in 2026, after 311 in 2025. 184 of them are OÜ and AS.

What is the oldest engineering firm in Estonia?

Aktsiaselts Exact Geomark in Tallinn, 1996, followed by Aktsiaselts Kek Invest in Näpi (1996) and Alvigo AS in Tallinn (1996). 0 firms date from before 1900.

Which industry code covers engineering companies?

Estonian engineering companies are classified under NACE Rev. 2 code 7112. Our platform filters them on NACE Rev. 2 7112.

Can I download the full list?

Yes. All 4,893 firms with address, phone, email, legal form, employees, revenue and founding year, as Excel, CSV or through the API.

Discover more: related industries, in other countries

The lists closest to this one. Every industry and city in Estonia is on the Estonia page.

Professional, scientific and technical

Europe

Americas

Asia Pacific

Engineering Companies in India

Africa and Middle East

Engineering Companies in South Africa

Get the full list of engineering companies in Estonia

All 4,893 firms with address, phone, email, legal form, employees, revenue and founding year. Excel, CSV or API, delivered within 24 hours.

Get a free sample