Company lists · Data refreshed September 2026

Top 14 Waste audit and consulting firms based in Austria

RevenueBase identified 31 waste audit and consulting firms headquartered in Austria as of September 2026 and tracks 278 professional contacts across them, including 66 with verified work emails. Wien is the largest hub.

This list covers waste audit and 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 14, 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 14, 2026 86% judged on-target in blind review
31Companies
278Contacts tracked
66Verified emails
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The 14 largest waste audit and consulting firms based in Austria

Ranked by team size
Top 14 of 31 waste audit and consulting firms based in Austria, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to waste audit and 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, AustriaHQ checked Sep 14, 202651-20048 contacts →

Indirect evidence

“All-round circular economy expertise for your business!”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceFrohnleiten, AustriaHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceInzing, AustriaHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceWien, AustriaHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“Wir bieten Beratung und Engineering in den Bereichen Abfallwirtschaft, Recycling, Rückgewinnung, Ressourcen- und Energieeffizienz, Deponien, Altlastensanierung und…”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceGuntramsdorf, AustriaHQ checked Sep 14, 202651-2004 contacts →

Partial evidence

“Josef Sieber GesmbH is your reliable partner when it comes to scrap and scrap metal trading and sustainable waste disposal.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceWaldegg, AustriaHQ checked Sep 14, 202611-502 contacts →

Indirect evidence

“Die BIO-Brennstoff GmbH setzt neue Maßstäbe im Upcycling und ist als Sammler und Aufbereiter für Abfallströme zur Verwertung in der Zement- und Baustoffindustrie tätig.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceSt. Radegund, AustriaHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Experts4Recycling GmbH ist ein herstellerunabhängiges Ingenieurbüro und Unternehmensberatung mit Spezialisierung auf Recycling- und Sortieranlagen.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceFeldkirchen In Kärnten, AustriaHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceRaaba, AustriaHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“You have the waste, we have the solution: With over 20 years of experience in the industry, we are one of Europe’s leading waste broker companies with a view across the entire…”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceOberpullendorf, AustriaHQ checked Sep 14, 2026201-5001 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceHausleiten, AustriaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Mehr als 10 Jahre Erfahrung mit den Themen Abfallberatung, Umweltmanagement, Digitales Datenmanagement”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceVöcklabruck, AustriaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceKrems An Der Donau, AustriaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Maximize Your Profits Through Efficient Recycling and Custom Solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceVienna, AustriaHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“Vienna Institute for Resources and Waste The team of VIRWa has more than 40 years experience in solid waste and resource management.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 14 of 31 waste audit and consulting firms based in Austria

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Waste audit and consulting firms based in Austria at a glance

As of Sep 14, 2026
23.7%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
12.9%Largest-city concentration · Wien
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
7
51-200
3
201-500
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 31 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 waste audit and 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 “waste audit and 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 waste audit and 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 waste audit and 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, 66 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 14, 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 waste audit and 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 waste audit and consulting firms are there based in Austria?

RevenueBase identified 31 waste audit and 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?

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

Which city has the most waste audit and consulting firms?

Wien leads with 4 headquartered companies, followed by Amstetten (1) and Brunn Am Gebirge (1).

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 66 verified decision-maker contacts tracked across these 31 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 14, 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.