Company lists · Data verified August 2026

Top 25 Consulting firms based in Austria

Name: Consulting firms based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,689 companies tracked

There are 1,689 consulting firms headquartered in Austria (RevenueBase, August 2026). RevenueBase tracks 22,689 professional contacts across them, including 9,604 with verified work emails and 2,263 with mobile numbers. Wien is the largest hub.

This list covers consulting firms headquartered in Austria, 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.

1,689Companies

22,689Contacts tracked

9,604Verified emails

2,263Mobile numbers

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The 25 largest consulting firms based in Austria

Ranked by team size

Top 25 of 1,689 consulting firms based in Austria, 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	Oliver Wyman	Wein	5,001-10,000	8,336	4,538
2	DAI	n/a	5,001-10,000	3,834	426
3	Westernacher Consulting	Wien	1,001-5,000	866	516
4	BDO Austria	Wolfsberg	1,001-5,000	596	417
5	Netconomy	n/a	201-500	325	241
6	EFS Consulting	n/a	201-500	306	178
7	ODS Consulting Group	Viyana	201-500	160	75
8	Ventum Consulting	Vienna	51-200	115	4
9	Proficio	n/a	51-200	101	71
10	ASE Global	Vienna	201-500	101	23
11	Eurogroup Consulting Deutschland	Wien	51-200	100	71
12	LBG Österreich Gmbh Wirtschaftsprüfung & Steuerberatung	Eisenstadt	501-1,000	93	50
13	Count IT Group	Linz	201-500	87	52
14	Cubeserv Group	n/a	51-200	77	49
15	Uniforce	Wien	51-200	75	46
16	Kobaltblau Management Consultants	Wien	51-200	72	26
17	Hill International Group	Vienna	201-500	69	9
18	Xenium AG	Salzburg	51-200	68	44
19	Diapharm Gmbh & Co. KG	Wien	51-200	68	38
20	Firstwaters	Wien	51-200	61	36
21	Rabel Partner	Graz	51-200	54	41
22	Bachert&partner	Wien	51-200	54	38
23	AON Österreich	Wien	201-500	52	26
24	Syngroup Management Consulting	Wien	51-200	50	27
25	ICONS	Wien	51-200	44	24

Showing 25 of 1,689 consulting firms based in Austria

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Consulting firms based in Austria at a glance

As of Aug 28, 2026

1-10Median size (employees)

WienLargest hub · 420 HQs

2,263Contacts with mobile numbers

50Emails re-verified in last 30 days

Companies by employee count

1-10

1,246

11-50

325

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Consulting firms by metro

Metro	Companies
Consulting firms in Wien	420
Consulting firms in Vienna	197
Consulting firms in Linz	79
Consulting firms in Graz	77
Consulting firms in Innsbruck	58
Consulting firms in Salzburg	57
Consulting firms in Dornbirn	21

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 “consulting firms”, with match quality audited by blind human judging, and headquartered in Austria.
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; 50 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 consulting firms are there based in Austria?

There are 1,689 consulting firms headquartered in Austria as of August 2026 (RevenueBase).

What is the largest company on this list?

Oliver Wyman, headquartered in Wein, tops this list with the largest team on record.

Which city has the most consulting firms?

Wien leads with 420 headquartered companies, followed by Vienna (197) and Linz (79).

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 9,604 verified decision-maker contacts tracked across these 1,689 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.