300+ investors in your industry, stage, and region Get
Any industry
Google
Clean Energy
EdTech
Artificial Intelligence
Local
Enterprise Software
Travel
Platforms
InsurTech
Oil and Gas
Retail
Social Impact
Cryptocurrency
SaaS
Film
Restaurants
Photography
Payments
Email
CleanTech
Energy
Marketplace
Organic Food
Fitness
Machine Learning
Health Care
Agriculture (AgTech)
Gaming
Facebook
Blockchain
B2B
Social Network
Video Games
Big Data
Medical Device
Wellness
Education
Mobile
Automotive
Sports
Legal
eSports
Construction
Hospitality
Biotechnology
Consumer
Software
Renewable Energy
Crowdfunding
Theatre
Medical
Recruiting
Web3
Venture Capital
Fashion
Social
Beauty
Infrastructure
Cannabis
LGBT
Celebrity
Climate
Mobile Apps
Life Science
Wine and Spirits
Food and Beverage
Publishing
Music
Art
Real Estate
Sporting Goods
Manufacturing
Digital Media
FinTech
Finance
Financial Services
Social Media
Franchise
Mobile Advertising
Non Profit
Internet
Android
Sustainability
Hardware
Biotech
Impact
Proptech
Transportation
Enterprise
Community
Media (Entertainment)
Any country
Hong Kong
Thailand
United Arab Emirates
Egypt
Greece
Croatia
Burkina Faso
South Korea
Singapore
Brazil
Kyrgyzstan
LATAM
Africa
Oceania
Gibraltar
Liberia
Taiwan
Tunisia
Sweden
Zimbabwe
Zambia
Norway
Tajikistan
Mexico
Nigeria
Russian Federation
Togo
Guinea
Nepal
Iran
Isle of Man
Madagascar
Pakistan
Romania
Oman
Poland
Puerto Rico
Andorra
Cameroon
Guernsey
Sudan
Colombia
Armenia
China
Costa Rica
Kenya
Czech Republic
Kuwait
Marshall Islands
Luxembourg
Malta
Mozambique
Namibia
Mauritius
Nicaragua
Panama
Serbia
Uzbekistan
New Zealand
Australia
Saudi Arabia
Sri Lanka
Jamaica
Switzerland
Guatemala
Kazakhstan
Cayman Islands
Venezuela
Malawi
Myanmar
Uganda
Turkey
Uruguay
Morocco
Seychelles
Moldova
Botswana
Paraguay
Ireland
Japan
South Africa
France
Georgia
Denmark
Ghana
Iraq
Mali
Latvia
Malaysia
Portugal
Philippines
Sierra Leone
Rwanda
El Salvador
Senegal
Tanzania
Germany
India
Canada
United Kingdom
United States
Indonesia
Middle East
Dominican Republic
Bermuda
Asia
Albania
Spain
Angola
Europe
Cyprus
Qatar
Argentina
Bangladesh
Belgium
Barbados
Jordan
Austria
Ethiopia
Azerbaijan
Bulgaria
Ecuador
Bahamas
Faroe Islands
Estonia
Jersey
Bahrain
Bolivia
Algeria
Belize
Finland
Italy
Belarus
Hungary
Grenada
Israel
Iceland
Cambodia
Honduras
Lithuania
Liechtenstein
Lebanon
Mongolia
Peru
Slovenia
San Marino
Ukraine
Vietnam
Chile
Angel Investors
VC Funds
All Investors
Access Full Database - Free Forever
Open database
Karl Ludwig Kley, Managing Director at Bilfinger Venture Capital

Karl Ludwig Kley

Managing Director @ Bilfinger Venture Capital

Mannheim, Germany

Karl Ludwig Kley is a Series A investor at Bilfinger Venture Capital in Mannheim focused on Fuel and Energy. Dr. Karl Ludwig Kley has been Head of Executive Management at Bilfinger Venture Capital GmbH since April 2012. He has been with the Bilfinger Group since 2004. Following operational positions in Civil in both Germany and abroad as well as with Corporate Development at HSG Zander International, he most recently worked in Corporate Projects /M&A at Bilfinger SE where he accompanies several M&A transactions for Bilfinger SE.Dr. Kley is a civil engineering graduate and holds a doctorate in the same subject from the University of Karlsruhe.

Total investments:
3
Last investment:
Lead investor:
0%

Last updated:

Industries Karl Ludwig Kley invests in

FuelEnergyManufacturingRenewable Energy

Stages Karl Ludwig Kley invests in

Series ASeries B

Countries Karl Ludwig Kley invests in

Germany

Contacts

TypeContactValidation
Work email
Personal email
Work phone
Personal phone
Socials

Sign up to unlock verified contacts

Unlock Contacts

Investment Focus

Industry

  • Fuel 1 (33%)
  • Energy 1 (33%)
  • Manufacturing 1 (33%)
  • Renewable Energy 1 (33%)

Stage

  • Series A 2 (67%)
  • Series B 1 (33%)

Investments

CompanyDescriptionRoundLinks
Klaren International Klaren International
Klaren International employs a complete team of specialists. They have been involved in the self-cleaning fluidized bed heat exchange technology for more than thirty years.Klaren is a highly innovative technology development company which markets and sells complete heat exchange installations worldwide. These installations can be either new orseverely fouling existing installations revamped into a self-cleaning configuration. If necessary, they co-operate with the large international engineering companies to incorporate the self-cleaning heat exchange technology in all kinds of processing equipment, including complex heat recovery systems, chemical reactors, evaporators, reboilers and crystallizers.Klaren is not interested in the fabrication of the heat exchange installations and prefers to outsource the fabrication to competent manufacturing companies, which should also be acceptable to the actual end user of the equipment. Of course, they provide a full performance guarantee. $2.7M / Series A / Apr 17, 2014
Sunfire Sunfire
Sunfire develops and manufactures systems for renewable industrial gas and fuel production. These substitutes for mineral oil and natural gas, known as e-Gas, e-Fuel or e-Chemicals, replace fossil fuels in existing infrastructures. The solid oxide cells (SOCs) used for the conversion process are also used as generators to provide electricity andheat.Sunfire’s vision is to make regenerative energy from sources such as wind farms, hydropower plants, and photovoltaic systems available wherever and whenever it is needed — not just when the wind is blowing, the waves are crashing or the sun is shining. $8.8M / Series B / Feb 25, 2014
Sunfire Sunfire
Sunfire develops and manufactures systems for renewable industrial gas and fuel production. These substitutes for mineral oil and natural gas, known as e-Gas, e-Fuel or e-Chemicals, replace fossil fuels in existing infrastructures. The solid oxide cells (SOCs) used for the conversion process are also used as generators to provide electricity andheat.Sunfire’s vision is to make regenerative energy from sources such as wind farms, hydropower plants, and photovoltaic systems available wherever and whenever it is needed — not just when the wind is blowing, the waves are crashing or the sun is shining. $6.6M / Series A / Nov 29, 2012

Co-Investors

Bilfinger Venture Capital

About Bilfinger Venture Capital

VC Fund · Mannheim, Germany

As an engineering and services group, Bilfinger develops, builds, maintains and operates plants and buildings for infrastructure, real estate, industry and the energy sector.Bilfinger Venture Capital invests in young and technology-oriented businesses which are related to the strategic and operational interests of the Bilfinger group. ThusBilfinger Venture Capital is part of Bilfinger´s innovation strategy.They encourage innovative ideas that provide answers to the challenges of their future business.They act as a strategic partner and want to make a decisive contribution to the success of the companies in their portfolio. In addition to their financial commitment, they pursue the establishment of a technological cooperation between Bilfinger business units and start-ups.

Bilfinger Venture Capital Contacts

NameEmailPhoneSocials
Karl Ludwig Kley
Karl Ludwig Kley Managing Director
Benedict Boesel
Benedict Boesel Investment Manager

Sign up to unlock verified contacts

Unlock Contacts

See all contacts →

Access 48,091 investors

822 industries, 177 countries. Updated daily. Emails and phones included.

Browse database — It's Free!

Find investors for your startup

Search 48,091 investors by industry and country. Emails and phones included.

Any industry
Google
Clean Energy
EdTech
Artificial Intelligence
Local
Enterprise Software
Travel
Platforms
InsurTech
Oil and Gas
Retail
Social Impact
Cryptocurrency
SaaS
Film
Restaurants
Photography
Payments
Email
CleanTech
Energy
Marketplace
Organic Food
Fitness
Machine Learning
Health Care
Agriculture (AgTech)
Gaming
Facebook
Blockchain
B2B
Social Network
Video Games
Big Data
Medical Device
Wellness
Education
Mobile
Automotive
Sports
Legal
eSports
Construction
Hospitality
Biotechnology
Consumer
Software
Renewable Energy
Crowdfunding
Theatre
Medical
Recruiting
Web3
Venture Capital
Fashion
Social
Beauty
Infrastructure
Cannabis
LGBT
Celebrity
Climate
Mobile Apps
Life Science
Wine and Spirits
Food and Beverage
Publishing
Music
Art
Real Estate
Sporting Goods
Manufacturing
Digital Media
FinTech
Finance
Financial Services
Social Media
Franchise
Mobile Advertising
Non Profit
Internet
Android
Sustainability
Hardware
Biotech
Impact
Proptech
Transportation
Enterprise
Community
Media (Entertainment)
Any country
Hong Kong
Thailand
United Arab Emirates
Egypt
Greece
Croatia
Burkina Faso
South Korea
Singapore
Brazil
Kyrgyzstan
LATAM
Africa
Oceania
Gibraltar
Liberia
Taiwan
Tunisia
Sweden
Zimbabwe
Zambia
Norway
Tajikistan
Mexico
Nigeria
Russian Federation
Togo
Guinea
Nepal
Iran
Isle of Man
Madagascar
Pakistan
Romania
Oman
Poland
Puerto Rico
Andorra
Cameroon
Guernsey
Sudan
Colombia
Armenia
China
Costa Rica
Kenya
Czech Republic
Kuwait
Marshall Islands
Luxembourg
Malta
Mozambique
Namibia
Mauritius
Nicaragua
Panama
Serbia
Uzbekistan
New Zealand
Australia
Saudi Arabia
Sri Lanka
Jamaica
Switzerland
Guatemala
Kazakhstan
Cayman Islands
Venezuela
Malawi
Myanmar
Uganda
Turkey
Uruguay
Morocco
Seychelles
Moldova
Botswana
Paraguay
Ireland
Japan
South Africa
France
Georgia
Denmark
Ghana
Iraq
Mali
Latvia
Malaysia
Portugal
Philippines
Sierra Leone
Rwanda
El Salvador
Senegal
Tanzania
Germany
India
Canada
United Kingdom
United States
Indonesia
Middle East
Dominican Republic
Bermuda
Asia
Albania
Spain
Angola
Europe
Cyprus
Qatar
Argentina
Bangladesh
Belgium
Barbados
Jordan
Austria
Ethiopia
Azerbaijan
Bulgaria
Ecuador
Bahamas
Faroe Islands
Estonia
Jersey
Bahrain
Bolivia
Algeria
Belize
Finland
Italy
Belarus
Hungary
Grenada
Israel
Iceland
Cambodia
Honduras
Lithuania
Liechtenstein
Lebanon
Mongolia
Peru
Slovenia
San Marino
Ukraine
Vietnam
Chile
Angel Investors
VC Funds
All Investors

Similar Investors

Recommended lists

FAQ

What does Karl Ludwig Kley invest in?

Karl Ludwig Kley invests primarily in Fuel, Energy and Manufacturing startups, most often at Series A and Series B stage. Most of the 3 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

How do I contact Karl Ludwig Kley?

For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

When did Karl Ludwig Kley last invest?

The most recent investment recorded for Karl Ludwig Kley closed in Apr 2014. Shizune tracks 3 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.

Contact your first 100 investors today

Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.

Find investors — It's Free!
Karl Ludwig Kley Karl Ludwig Kley Find email