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Gisbert Ruehl, Angel Investor

Gisbert Ruehl

Angel Investor

Munich, Germany

Gisbert Ruehl is a seed investor in Munich focused on Marketplace and B2B. Studies in Industrial Engineering, Hamburg University. 1987, Management Consultant, Roland Berger & Partner; top management positions in IT, finance, chemicals and the automotive sector; 2002-05, Partner, Roland Berger Strategy Consultants. July 2005, Chief Financial Officer, Klöckner & Co Group. With Klöckner & Co SE: since November2009, Chairman of the Management Board; until end of 2012, also acting Chief Financial Officer.

Total investments:
4
Last investment:
Lead investor:
0%

Last updated:

Industries Gisbert Ruehl invests in

MarketplaceB2BAppsInternetSoftware

Stages Gisbert Ruehl invests in

SeedPre-Seed

Countries Gisbert Ruehl invests in

GermanyAustria

Round sizes

Seed $3.1M–$6.2M

Round size

Seed
$3.1M–$6.2M

Investment Focus

Industry

  • Marketplace 2 (50%)
  • B2B 1 (25%)
  • Apps 1 (25%)
  • Internet 1 (25%)
  • Software 1 (25%)
See all 13 industries →

Stage

  • Seed 3 (75%)
  • Pre-Seed 1 (25%)

Country

  • Germany 3 (75%)
  • Austria 1 (25%)

Investments

CompanyDescriptionRoundLinks
avoltra avoltra
Avoltra aims to position itself as an "intelligent energy purchasing solution" by leveraging advanced technology and data-driven insights to optimize energy procurement. $2.7M / Pre-Seed / Jul 02, 2025
METYCLE METYCLE
The B2B marketplace for global scrap metal trading. We give the world access to scrap metal. $5.2M / Seed / Dec 14, 2023
SPARETECH SPARETECH
SPARETECH’s Vertical AI software enables maintenance and procurement teams in manufacturing to reliably reduce spend and optimize inventory by sourcing spare parts inside or outside their production network and stop buying parts they already have. $6.2M / Seed / Oct 04, 2021
Schrott24 Schrott24
Schrott24 is a B2B-focused managed marketplace for metal scrap. We help recyclers to source more material and scrap metal producers to market their metal waste more efficiently. Besides matching supply and demand, the fulfillment of transactions is processed through our proprietary technology. We digitalize processes and increase the efficiency ofthe recycling industry. $3.1M / Seed / Oct 22, 2020

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Google
Clean Energy
EdTech
Artificial Intelligence
Local
Enterprise Software
Travel
Platforms
Social Impact
InsurTech
Oil and Gas
Retail
Cryptocurrency
Film
SaaS
Photography
Restaurants
Payments
Email
CleanTech
Energy
Marketplace
Organic Food
Fitness
Machine Learning
Health Care
Gaming
Agriculture (AgTech)
Blockchain
Facebook
B2B
Social Network
Video Games
Medical Device
Big Data
Mobile
Wellness
Automotive
Sports
Education
Legal
Hospitality
eSports
Biotechnology
Consumer
Construction
Software
Renewable Energy
Crowdfunding
Venture Capital
Fashion
Social
Theatre
Beauty
Medical
Infrastructure
Recruiting
Cannabis
Web3
LGBT
Celebrity
Mobile Apps
Climate
Life Science
Music
Art
Wine and Spirits
Real Estate
Sporting Goods
Manufacturing
Food and Beverage
Digital Media
FinTech
Publishing
Finance
Financial Services
Social Media
Franchise
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Impact
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FAQ

What does Gisbert Ruehl invest in?

Gisbert Ruehl invests primarily in Marketplace, B2B and Apps startups, most often at Seed and Pre-Seed stage. Most of the 4 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

What is Gisbert Ruehl's check size?

Gisbert Ruehl typically joins rounds of $3.1M–$6.2M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Gisbert Ruehl participates in.

When did Gisbert Ruehl last invest?

The most recent investment recorded for Gisbert Ruehl closed in Jul 2025. Shizune tracks 4 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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