Definiens Investors

27 investors on Angel Roster list Definiens in their portfolio. Most are venture capital firms and private equity firms, the most common stage is Seed and the largest groups are based in Germany, the Netherlands and the United States.

Investors are matched on the company name in their portfolio, so companies that share the name Definiens can appear together.

Investors listed
27
With verified email
30%
Most common stage
Seed
Top location
Germany

Updated October 13, 2026 · How we compile this data

Top 27 Definiens investors

The most complete profiles first. Showing 27 of 27.

  • Johannes FischerVerified

    Venture Capital, Private Equity Firm, Finance Operator · Germany

    SeedHealth CareGeneticsAutonomous VehiclesWellness

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 58 more

    Verified email available

  • Marianne MertensVerified

    Venture Capital, Private Equity Firm, Finance Operator · Germany

    SeedHealth CareGeneticsWellnessWomen Founded

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 60 more

    Verified email available

  • Regina HoditsVerified

    Venture Capital, Private Equity Firm, Finance Operator · Germany

    SeedHealth CareGeneticsAutonomous VehiclesWellness

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 58 more

    Verified email available

  • Varun GuptaVerified

    Venture Capital, Private Equity Firm, Micro VC · United States

    SeedPre-SeedNon Equity AssistanceHealth CareGeneticsWellnessWomen Founded

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 58 more

    Verified email available

  • Boyd RuttenVerified

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Verified email available

  • Claire HouryVerified

    Venture Capital, Private Equity Firm, Investment Partner · France

    E-commerceCybersecuritySportsConsumer Goods

    Portfolio: Mindler, The Agent, Oktogo, Annelutfen.com and 68 more

    Verified email available

  • HansVerified

    Venture Capital, Private Equity Firm · Germany

    Health CareWearablesE-commerceCustomer Service

    Portfolio: Saifun Semiconductors Ltd., Fortemedia, Tevet Process Control Technologies, DiBcom and 54 more

    Verified email available

  • Henry ZubaidaVerified

    Venture Capital, Private Equity Firm · United Kingdom

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Verified email available

  • Erich Schlick

    Venture Capital, Private Equity Firm, Finance Operator · Germany

    SeedHealth CareGeneticsAutonomous VehiclesWellness

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 58 more

    Contact details available

  • Rainer Strohmenger

    Venture Capital, Private Equity Firm, Finance Operator · Germany

    SeedHealth CareGeneticsAutonomous VehiclesWellness

    Portfolio: invendo medical, Actelion, UroMems, MTM Laboratories and 7 more

    Contact details available

  • Christian Claussen

    Venture Capital, Private Equity Firm, Investment Partner · Germany

    E-commerceCybersecuritySportsConsumer Goods

    Portfolio: Mindler, The Agent, Oktogo, Annelutfen.com and 68 more

    Contact details available

  • Christoph N. Kossmann

    Venture Capital, Private Equity Firm · Luxembourg

    Health CareWearablesE-commerceCustomer Service

    Portfolio: Saifun Semiconductors Ltd., Fortemedia, Tevet Process Control Technologies, DiBcom and 54 more

    Contact details available

  • Dan Secor

    Venture Capital, Private Equity Firm · United States

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Dennis Koerner

    Venture Capital, Private Equity Firm · Germany

    Health CareWearablesE-commerceCustomer Service

    Portfolio: Saifun Semiconductors Ltd., Fortemedia, Tevet Process Control Technologies, DiBcom and 54 more

    Contact details available

  • Diana Meyel

    Venture Capital, Private Equity Firm · Germany

    Health CareWearablesE-commerceCustomer Service

    Portfolio: Saifun Semiconductors Ltd., Fortemedia, Tevet Process Control Technologies, DiBcom and 54 more

    Contact details available

  • Edward Hanlon

    Venture Capital, Private Equity Firm · United States

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Edwin de Graaf

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Jasper van Gorp

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Jean Bourcereau

    Venture Capital · France

    E-commerceCybersecuritySportsConsumer Goods

    Portfolio: Mindler, The Agent, Oktogo, Annelutfen.com and 68 more

    Contact details available

  • Joep Heldens

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Karl Naegler

    Venture Capital · Germany

    Health CareGeneticsWellnessWomen Founded

    Portfolio: UiPath, Heliatek, import.io, invendo medical and 58 more

    Contact details available

  • Nicolas Barthalon

    Venture Capital, Private Equity Firm, Investment Partner · Germany

    E-commerceCybersecuritySportsConsumer Goods

    Portfolio: Mindler, The Agent, Oktogo, Annelutfen.com and 68 more

    Contact details available

  • Redmar Koene

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Sanne de Jongh

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Stefan Luzi, PhD

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

  • Tero Mennander

    Venture Capital, Private Equity Firm, Investment Partner · Finland

    E-commerceCybersecuritySportsConsumer Goods

    Portfolio: Mindler, The Agent, Oktogo, Annelutfen.com and 68 more

    Contact details available

  • Tom Klein Robbenhaar

    Venture Capital, Private Equity Firm · Netherlands

    Health CareWearablesHospitalsWellness

    Portfolio: Santaris Pharma, Noema Pharma, AM Pharma, Sapiens Steering Brain Stimulation and 51 more

    Contact details available

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Related industries

Most-backed portfolio companies

Frequently asked questions

How many Definiens investors are on Angel Roster?

Angel Roster lists 27 Definiens investors. 8 of them (30%) include a verified email address.

What types of investors are they?

The most common investor types are Venture Capital Firms (27), Private Equity Firms (25) and Finance Operator Investors (5). An investor can have more than one type, for example an angel who is also a venture partner.

Which stages do Definiens investors invest in?

Among those that list a stage, the most common are Seed (6), Non Equity Assistance (1) and Pre-Seed (1).

Where are Definiens investors based?

Most are based in Germany (11), the Netherlands (8) and the United States (3).

Which companies have Definiens investors backed?

The most-backed portfolio companies among them are Withings (16), MTM Laboratories (12), BionX™ Medical Technologies (11), Santaris Pharma (11) and Ablative Solutions (11).

How do I contact Definiens investors?

Create a free Angel Roster account to search and filter all 27, then unlock verified emails and LinkedIn profiles on a paid plan. Every plan starts with a 3-day free trial.