🦊/People

Karl Lehenbauer

Investor

Investor at Sand Hill Angels

Houston, Texas, United States

Find your path to Karl

162 people in our graph share verified history with Karl β€” schools, employers, funds. One of them is your warm intro.

Naeem RazaunlockedKarl: together at Sand Hill Angels (2025–2026)
Γ—10Karl: together at Sand Hill Angels
Karl: together at Indiana University Bloomington

About

Karl Lehenbauer is the principal architect of FlightAware's flight tracking technologies and cofounder of the company. He has spent decades designing and managing development of large, real-time applications in aerospace, energy, and oilfield sectors, and founded the first Internet service provider in the Southern United States in the 1990s. His technical contributions include work on the Tcl programming language, multiple open source projects dating to the mid-1980s, and engine monitoring systems at GE Aircraft Instruments. He currently invests through Sand Hill Angels and competes in Trans-Am TA racing, winning the 2015 Texas Region points championship in the Super Unlimited category.

Experience

  1. Sand Hill AngelsInvestorcurrent2025 β€” present
  2. Collins AerospaceAdvisorcurrent2021 β€” present
  3. FlightAwareCTO2005 β€” 2021Houston, Texas
  4. SuperconnectCTO2002 β€” 2007Houston, Texas
  5. NeoSoftCTO1991 β€” 1999Houston, Texas
  6. Ferranti International Controls CorporationContract Programmer1985 β€” 1990Sugar Land, Texas

Skills & more

Distributed SystemsInternet Protocol Suite (TCP/IP)Embedded SystemsCloud ComputingPython14Linux32Software Development43SQL14Project Management6Team Leadership10Unix25Program Management12
+8 moreAgile MethodologiesJavaScriptSoftware EngineeringTCLIntegrationStart-upsShell ScriptingApache

From Karl's professional profile.

Colleagues at Sand Hill Angels

Frequently asked questions

Who is Karl Lehenbauer?
Karl Lehenbauer is the principal architect of FlightAware's flight tracking technologies and cofounder of the company. He has spent decades designing and managing development of large, real-time applications in aerospace, energy, and oilfield sectors, and founded the first Internet service provider in the Southern United States in the 1990s. His technical contributions include work on the Tcl programming language, multiple open source projects dating to the mid-1980s, and engine monitoring systems at GE Aircraft Instruments. He currently invests through Sand Hill Angels and competes in Trans-Am TA racing, winning the 2015 Texas Region points championship in the Super Unlimited category.
Where does Karl Lehenbauer work?
Karl Lehenbauer is at Sand Hill Angels.
Where did Karl Lehenbauer go to school?
Karl Lehenbauer studied at Indiana University Bloomington (Computer Science).

Same school

Shared employers