Fundraising Fox
/People
Sign in

Lars Letonoff

Founder

Co-Founder and CEO at Guardare

Clearwater, Florida, United States

FoundedGuardare

Find your path to Lars

123 people in our graph share verified history with Lars — schools, employers, funds. One of them is your warm intro.

Alex DollunlockedLars: together at Guardare (2025–2026)
×3Lars: together at Guardare
×8Lars: together at University of South Florida

About

Lars Letonoff is Co-Founder and CEO of Guardare, Inc., a company developing an AI-powered cybersecurity and compliance platform. He previously served as President and Chief Revenue Officer at KnowBe4 during a 12-year tenure that spanned the company's growth to more than 55,000 customers and partners and its 2023 acquisition by Vista Equity Partners, and earlier held senior positions at Sunbelt Software, Prudent Bay Capital Management, Thunder Capital Management, Avalon Research Group, and Bulldog Capital Management. He also serves on the boards of DataDome and Limble CMMS.

Co-Founder and CEO at Guardare

Intro paths

→

In turn, Lars can intro founders to Guardare's investors below.

Guardare's investors · 1

Ten ElevenBurlingame · $3M – $15M checks · since 2025

Co-founders at Guardare

DFDane Fiori
Dane FioriFounder and President
CSChristian Sheedy
Christian SheedyFounder
MSMike Santos
Mike SantosFounder
TD
Thomas Dane Fiori, Jr.Executive Officer, Director

Experience

  1. Guardare, Inc.Co-Founder & CEOcurrent2024 — presentGreater Tampa Bay Area
  2. DataDomeBoard Membercurrent2022 — present
  3. Limble CMMSBoard Member2022 — 2026
  4. KnowBe4Co-President & Chief Revenue Officer2020 — 2023Clearwater, FL
  5. KnowBe4Chief Revenue Officer2015 — 2020
  6. KnowBe4VP Sales2011 — 2015
  7. Sunbelt SoftwareEnterprise Account Manager2007 — 2011
  8. Prudent Bay Capital MangementChief Investment Officer, CEO2005 — 2007Clearwater FL
  9. Thunder Capital ManagementHead of Trading2003 — 2005Clearwater, FL
  10. Avalon Research GroupDirector, Head of Trading2002 — 2003Boca Raton, FL
  11. Bull Dog Capital ManagementPortfolio Manager/Head of Trading1999 — 2002

Skills & more

Cloud Computing44Network Security72Solution Selling64Account Management27Sales Management18New Business Development10Product Marketing16Firewalls20Security75Virtualization5Strategic Partnerships15Data Center7
+9 moreNetworkingManaged ServicesProfessional ServicesGo-to-market StrategyWindowsEnterprise SoftwareSaaSStrategyComputer Security

From Lars's professional profile.

Frequently asked questions

Who is Lars Letonoff?
Lars Letonoff is Co-Founder and CEO of Guardare, Inc., a company developing an AI-powered cybersecurity and compliance platform. He previously served as President and Chief Revenue Officer at KnowBe4 during a 12-year tenure that spanned the company's growth to more than 55,000 customers and partners and its 2023 acquisition by Vista Equity Partners, and earlier held senior positions at Sunbelt Software, Prudent Bay Capital Management, Thunder Capital Management, Avalon Research Group, and Bulldog Capital Management. He also serves on the boards of DataDome and Limble CMMS.
Where does Lars Letonoff work?
Lars Letonoff is Co-Founder and CEO of Guardare.
What companies did Lars Letonoff found?
Lars Letonoff founded Guardare.
Where did Lars Letonoff go to school?
Lars Letonoff studied at University of Tampa (Master of Business Administration (M.B.A.), Finance); University of South Florida (Bachelor of Business Administration (BBA), Finance); University of Maryland Munich (Associate’s Degree, General Studies).

Founder mafias

Same school

Shared employers