Frank Thieser

Questioner
DISC Type : c

Investor at Stealth Startup

Greater Munich Metropolitan Area, Germany

Overview

Frank Thieser is a seasoned investor and strategic advisor with over 20 years of experience in the international defense, aerospace, and technology sectors. A graduate of Bundeswehr University Munich, he has held key leadership roles, including CFO and CSO at Quantum Systems, focusing on financial restructuring and global expansion. He is a vocal advocate for European technological sovereignty.

Outside of his professional endeavors in venture capital and defense, Frank is an active promoter of the startup ecosystem, particularly within the defense and security sector. When not focused on work, he dedicates his time to sports.

Unique fact: Frank is a trained helicopter pilot, having received his training from both the German Armed Forces and the U. S. Army Aviation Training Center.

Personality Overview

Price-Sensitive

Cautious & Analytical

Systematic

They generally do not appreciate an overfriendly approach and prefer to stay to-the-point.  While they don't hesitate to ask questions, they are generally risk-averse and tend to be late adopters. They prefer to fully evaluate every situation.

Topics They Care About

European Sovereignty
His professional headline is "working on European tech sovereignty" and he has publicly stated that technology plays an unprecedented role in achieving this goal.
Defense Technology
With a 20-year career in defense procurement and leadership roles at drone-maker Quantum Systems, he is deeply involved in the evolution of modern defense and security hardware.
Venture Capital
As an investor in companies like ZeroPhase and Stealth Startup, he is actively involved in early-stage ventures, focusing on hardware, software, and defense applications.

Media Appearances

ZeroPhase raised pre‑seed capital. Featured in Nordic 9

See Now

Work History

12-2025
Investor at Stealth Startup
5-2025
Investor at ZeroPhase
1-2025
Strategic Advisor at Quantum Systems
7-2024
Investor at Weles Acoustics
2023
Investor at ARX Robotics

Education

Dipl. Ing. from Bundeswehr University Munich
1999 - 1999
Helicopter Pilot from U.S. Army Aviation Training Center Fort Rucker, Alabama

More Information

Social Presence :

Prographics :

Exp : 26 Location : Greater Munich Metropolitan Area, Germany Job Level : N/A Designation : Investor at Stealth Startup
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Insights For Selling To Frank

During A Call Or A Meeting

DO's

  • Keep some extra margin in hand as they will likely negotiate the pricing
  • If you have a lower priced product compared to the competition, call out the same
  • Emphasize on objective proof of ROI, help them do a thorough evaluation

DONT's

  • Don’t try to be too friendly or informal with them
  • Don’t overhype the product/pitch, keep it measured
  • Avoid rushing them, be polite and patient

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Frank is

  • Ensuring that the product delivers ROI, cost-effective pricing and process compliance are very important for them.
  • Will you ever get a clear answer from Frank

  • It doesn’t come naturally to them but they can say no if they are not convinced.

Insights For Deal Planning

    How fast (or slow) will Frank move?

  • If they have the information that they need, they can move fast at making their decisions.
  • Can Frank take some risk or not?

  • If they believe that they have analyzed the situation well, they can take a little risk.

You And Frank

Personality Compatibility


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