Company lists · Data refreshed September 2026

Top 16 B2B consultancies based in Wien, Austria

RevenueBase identified 257 B2B consultancies headquartered in Wien, Austria as of September 2026 and tracks 1,298 professional contacts across them, including 537 with verified work emails. Wien is the largest hub.

This list covers B2B consultancies headquartered in Wien, Austria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review
257Companies
1,298Contacts tracked
537Verified emails
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The 16 largest B2B consultancies based in Wien, Austria

Ranked by team size
Top 16 of 257 B2B consultancies based in Wien, Austria, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B consultancies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWien, AustriaHQ checked Sep 23, 202651-20044 contacts →

Indirect evidence

“icons – consulting by students ist Österreichs größte studentische Unternehmensberatung mit Standorten in Innsbruck, Graz und Wien.”

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5039 contacts →

Indirect evidence

“Interconnection Consulting with headquarters in Vienna, Lviv and Oberstdorf is an internationally operating company and offers industry- and companyspecific one-stop solutions in…”

Source: RevenueBase Database · checked Sep 23, 2026
3Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5035 contacts →

Indirect evidence

“GTW management consulting is an international consultancy firm focussed on SAP Hybris Billing.”

Source: RevenueBase Database · checked Sep 23, 2026
4Indirect evidenceWien, AustriaHQ checked Sep 23, 2026501-1,00032 contacts →

Indirect evidence

“Willkommen bei MERCHANDISING, der führenden Verkaufsförderungs-Agentur in Österreich.”

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5028 contacts →

Indirect evidence

“Wir bei SEQIS sind spezialisiert auf viele Aspekte der IT Wertschöpfungskette: Business Analyse / Requirement Engineering, Software Entwicklung, Software Test und…”

Source: RevenueBase Database · checked Sep 23, 2026
6Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5028 contacts →

Indirect evidence

“arithmetica provides services in the fields - Employee Benefits, Pensions - Strategic HR Management - Insurance & Solvency II - Actuarial Consulting - Actuarial Software…”

Source: RevenueBase Database · checked Sep 23, 2026
7Indirect evidenceWien, AustriaHQ checked Sep 23, 202651-20027 contacts →

Indirect evidence

“TCI Consult specialises in Business Intelligence, Information Management and Technology Management services.”

Source: RevenueBase Database · checked Sep 23, 2026
8Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5025 contacts →

Indirect evidence

“Advertising agency and business consulting: & US unites the best of both worlds with one target: enabling a sustainable business growth- & US pursues a brand new approach: we…”

Source: RevenueBase Database · checked Sep 23, 2026
9Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5021 contacts →

Indirect evidence

“Klaiton ist eine Beratungsplattform, die Organisationen mit unabhängigen und qualitätsgeprüften Berater:innen verbindet, um gemeinsam nachhaltige Wirkung zu erzielen.”

Source: RevenueBase Database · checked Sep 23, 2026
10Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5020 contacts →

Indirect evidence

“42virtual is a consulting company specialized of delivering individual approaches to client's problems.”

Source: RevenueBase Database · checked Sep 23, 2026
11Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5019 contacts →

Indirect evidence

“We believe, each brand has its own language in words, design as in audio.”

Source: RevenueBase Database · checked Sep 23, 2026
12Indirect evidenceWien, AustriaHQ checked Sep 23, 202651-20019 contacts →

Indirect evidence

“The strategy consulting brand of EY Austria, Contrast EY, is set to join the global network of EY-Parthenon.”

Source: RevenueBase Database · checked Sep 23, 2026
13Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5015 contacts →

Indirect evidence

“Mit unserer langjährigen Erfahrung im Energieeinkauf und unserem hohen technischen Know-How begleiten wir unsere Kunden partnerschaftlich und auf Augenhöhe in die Energiezukunft.”

Source: RevenueBase Database · checked Sep 23, 2026
14Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5014 contacts →

Indirect evidence

“Plandata - part of the ATP Holding - is one of the leading specialists in Austria in the field of BIM technology.”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceWien, AustriaHQ checked Sep 23, 202611-5011 contacts →

Indirect evidence

“Oscar Karem ist Experte auf dem Gebiet Unternehmensskalierung, Marketing, Vertrieb, Positionierung, Branding und M&A (Mergers and Acquisitions) Mittlerweile blickt Oscar Karem auf…”

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidenceWien, AustriaHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

“we are: trusted advisors we deliver: business strategy, public affairs and communications we work: in the background, never seek the public limelight and confidentiality is our…”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 16 of 257 B2B consultancies based in Wien, Austria

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B2B consultancies based in Wien, Austria at a glance

As of Sep 23, 2026
41.4%Verified-email coverage
5.1Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Wien
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
196
11-50
50
51-200
10
501-1,000
1

Email recency for this list is measured across the whole Austria list rather than for Wien, so it is reported there. Company counts and contact totals on this page are exact for Wien, over 257 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among B2B consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Wien, Austria whose own description of what they do matches “B2B consultancies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names B2B consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among B2B consultancies, and records with no verified work email. Companies headquartered outside Wien are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 537 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names B2B consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many B2B consultancies are there based in Wien, Austria?

RevenueBase identified 257 B2B consultancies headquartered in Wien, Austria as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ICONS, headquartered in Wien, tops this list with the largest team on record.

Which city has the most B2B consultancies?

Wien leads with 257 headquartered companies, followed by Vienna (144) and Graz (59).

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 537 verified decision-maker contacts tracked across these 257 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.