Company lists · Data refreshed September 2026

Top 12 Sustainability focused venture capital based in Austria

RevenueBase identified 33 sustainability focused venture capital headquartered in Austria as of September 2026 and tracks 137 professional contacts across them, including 43 with verified work emails and 9 with mobile numbers. Vienna is the largest hub.

This list covers sustainability focused venture capital 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 6, 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 6, 2026 86% judged on-target in blind review
33Companies
137Contacts tracked
43Verified emails
9Mobile numbers
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The 12 largest sustainability focused venture capital based in Austria

Ranked by team size
Top 12 of 33 sustainability focused venture capital based in Austria, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability focused venture capital: 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
1Partial evidenceVienna, AustriaHQ checked Sep 6, 202611-5031 contacts →

“At Venionaire Capital, we are more than investors – we are dedicated partners in growth.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceVienna, AustriaHQ checked Sep 6, 202611-5022 contacts →

“We connect investors with high-growth startups, handling the entire investment process.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceVienna, AustriaHQ checked Sep 6, 20261-109 contacts →
Source: company website · checked Sep 6, 2026
4Indirect evidenceVienna, AustriaHQ checked Sep 6, 202611-508 contacts →

“Wir leben in einer Zeitenwende.”

Source: company website · checked Sep 6, 2026
5Strong evidenceVienna, AustriaHQ checked Sep 6, 20261-105 contacts →

“A purpose-driven global investment organisation: Mpoweru is more than a venture capital firm; we are architects of transformative change and catalysts for global innovation.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceRaaba-grambach, AustriaHQ checked Sep 6, 20261-104 contacts →

“Sustainable investments in sustainable energy – made in Austria” • We are an that operates internationally and specializes in investments in renewable energy.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceVienna, AustriaHQ checked Sep 6, 20261-104 contacts →

“At PUSH, we are committed to combat climate change and transform healthcare.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceLinz, AustriaHQ checked Sep 6, 20261-104 contacts →

“World’s oceans provide plenty renewable resources for nutrition, energy production and as raw materials.”

Source: company website · checked Sep 6, 2026
9Strong evidenceVienna, AustriaHQ checked Sep 6, 20261-103 contacts →

“SART Capital Partners is a private equity GP for sustainability-driven buyout investments into special opportunities, secondaries and underperforming assets in the lower…”

Source: company website · checked Sep 6, 2026
10Indirect evidenceRadstadt, AustriaHQ checked Sep 6, 20261-103 contacts →

“We invest in great ideas in the energy, robotics, health and cloud software sectors.”

Source: company website · checked Sep 6, 2026
11Partial evidenceVienna, AustriaHQ checked Sep 6, 20261-101 contacts →

“At Silicon.Garden, we’re cutting the drag and supercharging sustainable innovation with Venture Sprints – for a new kind of growth.”

Source: company website · checked Sep 6, 2026
12Partial evidenceVienna, AustriaHQ checked Sep 6, 20261-101 contacts →

“Since 2017, Honestas Capital has been helping innovative startups realize their full potential.”

Source: company website · checked Sep 6, 2026

Showing 12 of 33 sustainability focused venture capital based in Austria

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Sustainability focused venture capital based in Austria at a glance

As of Sep 6, 2026
31.4%Verified-email coverage
6.6%Mobile-number coverage
4.2Average contacts per company
1-10Median size (employees)
27.3%Largest-city concentration · Vienna
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
5

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 sustainability focused venture capital, 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 “sustainability focused venture capital”. 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 sustainability focused venture capital), 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 sustainability focused venture capital, 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, 43 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 6, 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 sustainability focused venture capital, 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 sustainability focused venture capital are there based in Austria?

RevenueBase identified 33 sustainability focused venture capital 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?

Venionaire Capital AG, headquartered in Austria, tops this list with the largest team on record.

Which city has the most sustainability focused venture capital?

Vienna leads with 9 headquartered companies, followed by Wien (5) and Graz (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 43 verified decision-maker contacts tracked across these 33 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 6, 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.