Company lists · Data refreshed September 2026

Top 24 Ecological consulting firms based in Austria

RevenueBase identified 50 ecological consulting firms headquartered in Austria as of September 2026 and tracks 227 professional contacts across them, including 80 with verified work emails and 2 with mobile numbers. Wien is the largest hub.

This list covers ecological consulting firms headquartered in 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
50Companies
227Contacts tracked
80Verified emails
2Mobile numbers
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The 24 largest ecological consulting firms based in Austria

Ranked by team size
Top 24 of 50 ecological consulting firms based in Austria, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to ecological consulting firms: 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, Austria11-5016 contacts →

Indirect evidence

“Ihr zuverlässiger, schneller und kompetenter Partner für naturwissenschaftliche Fragestellungen im Bereich Umwelt und Technologie.”

Source: RevenueBase Database · checked Sep 1, 2026
2Indirect evidenceVeitglan, Austria11-5015 contacts →

Indirect evidence

“Abfallverwertung, Schadstoffreduktion, Emissionsvorgaben … – Betriebe werden heute mit einer Vielzahl an umweltgesetzlichen Verpflichtungen konfrontiert.”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceWien, Austria11-5013 contacts →

Indirect evidence

“pulswerk ist das Beratungsunternehmen des Österreichischen Ökologie-Instituts.”

Source: RevenueBase Database · checked Sep 1, 2026
4Indirect evidenceHagenberg Im Muhlkreis, Austria11-5012 contacts →

Indirect evidence

“Förderungen Im kaum überschaubaren Förderungsdschungel behalten wir den Durchblick.”

Source: RevenueBase Database · checked Sep 1, 2026
5Indirect evidenceGraz, Austria11-5011 contacts →

Indirect evidence

“Umwelt, Ökologie und Mensch in Einklang bringen.”

Source: RevenueBase Database · checked Sep 1, 2026
6Partial evidenceLinz, Austria11-508 contacts →

Partial evidence

“Pöchhacker Innovation Consulting GmbH (P-IC) ist ein Beratungsunternehmen, das auf wirtschafts, forschungs- und innovationspolitische Fragestellungen, die Green Transition der…”

Source: RevenueBase Database · checked Sep 1, 2026
7Partial evidenceGraz, Austria11-507 contacts →

Partial evidence

“CONSIGA wurde aus dem gebündelten Know-how umsetzungsstarker Spezialisten mit jahrzehntelanger Erfahrung in verschiedensten Branchen gegründet – mit dem Ziel Consulting neu zu…”

Source: RevenueBase Database · checked Sep 1, 2026
8Indirect evidenceWien, Austria1-107 contacts →

Indirect evidence

“We support organizations to find their potential to unfold sustainability in their everyday business.”

Source: RevenueBase Database · checked Sep 1, 2026
9Indirect evidenceKirchbichl, Austria1-106 contacts →

Indirect evidence

“Unsere Firmenphilosophie als Energieberatungsunternehmen basiert auf dem Ziel, unseren Kunden dabei zu helfen, ihre Energieeffizienz zu verbessern und ihre Energiekosten zu…”

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceAustria1-106 contacts →

Indirect evidence

“A Short History Originally established in 2011 as a joint venture between denkstatt GmbH and ENERTEC - Naftz & Partner GmbH & Co KG, the company known as denkstatt & enertec (d&e…”

Source: RevenueBase Database · checked Sep 1, 2026
11Partial evidenceWien, Austria1-105 contacts →

Partial evidence

“Daxner & Merl stands for profound sustainability consulting services focused on environmental management.”

Source: RevenueBase Database · checked Sep 1, 2026
12Indirect evidenceSchlierbach, Austria1-105 contacts →

Indirect evidence

“Unsere Mission: Wir stellen den ökologischen Fußabdruck von Produkten und Organisationen in den Mittelpunkt und erarbeiten gemeinsam mit unseren Kunden innovative Maßnahmenpakete…”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceWien, Austria1-103 contacts →

Indirect evidence

“Das Büro für nachhaltige Kompetenz arbeitet, forscht und berät zu den ökologischen, ökonomischen, sozialen und gesellschaftlichen Dimensionen der Nachhaltigkeit.”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceWien, Austria1-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceInnsbruck, Austria1-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceVienna, Austria1-102 contacts →

Indirect evidence

“International team of experts, led by a team-leader with over 20 years of international experience (SEE and DACH region) in the environmental and construction industry, energy and…”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceWiener Neustadt, Austria1-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
18Indirect evidenceWien, Austria11-501 contacts →

Indirect evidence

“DWS Hydro-Ökologie GmbH is an environmental services company based in Vienna, Austria.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceBohlerwerk, Austria1-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidencePinkafeld, Austria1-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceAustria1-101 contacts →

Partial evidence

“We are consulting engineers for water management and environmental engineering and we are specialised on the sustainable optimisation and conservation of pipe-bounded…”

Source: RevenueBase Database · checked Sep 1, 2026
22Partial evidenceVienna, Austria1-101 contacts →

Partial evidence

“Nature-inspired corporate consultant and coach - I support companies in breaking new ground that make them fit future |re-design business|change-agent|ecologicaleconomist

Source: RevenueBase Database · checked Sep 1, 2026
23Indirect evidenceSt. Polten, Austria1-101 contacts →

Indirect evidence

“Unternehmensberatung für nachhaltige Entwicklung”

Source: RevenueBase Database · checked Sep 1, 2026
24Indirect evidenceGraz, Austria1-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026

Showing 24 of 50 ecological consulting firms based in Austria

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Ecological consulting firms based in Austria at a glance

As of Sep 1, 2026
35.2%Verified-email coverage
0.9%Mobile-number coverage
4.5Average contacts per company
1-10Median size (employees)
18.0%Largest-city concentration · Wien
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
16
51-200
1

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 ecological consulting firms, 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 Austria whose own description of what they do matches “ecological consulting firms”. 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 ecological consulting firms), 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 ecological consulting firms, and records with no verified work email. Companies headquartered outside Austria 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, 80 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 1, 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 ecological consulting firms, 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 ecological consulting firms are there based in Austria?

RevenueBase identified 50 ecological consulting firms headquartered in 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?

ESW Consulting Wruss Ziviltechnikergesellschaft MBH, headquartered in Wien, tops this list with the largest team on record.

Which city has the most ecological consulting firms?

Wien leads with 9 headquartered companies, followed by Graz (5) and Vienna (3).

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 80 verified decision-maker contacts tracked across these 50 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 1, 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.