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Rainer Sternfeld

InvestorFounder

General Partner at NordicNinja · Founder at Planet OS

Tallinn, Harjumaa, Estonia

FoundedPlanet OS

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You →Noemi · together at Planet OS (2015–2016) →Rainer

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You →Jamie · 2 people · together at koodtech →Rainer

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About

Founder-turned-investor focused on mission-critical technologies, including AI, compute, digital society, frontier tech, and robotics/automation.

Invests in

Climate TechDeep TechRobotics

Founder at Planet OS

Intro paths

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In turn, Rainer can intro founders to Planet OS's investors below.

Planet OS's investors · 1

Trind VenturesTallinn · $108K – $1.1M checks · since 2016

Co-founders at Planet OS

KKKalle Kagi
Kalle KagiExecutive Officer, Director

Experience

  1. NordicNinja VCGeneral Partnercurrent2019 — presentLondon, Tallinn, Stockholm, Helsinki
  2. koodtechCo-Foundercurrent2019 — presentEstonia
  3. LightyearBoard Observercurrent2025 — presentCity Of London, England, United Kingdom
  4. LiveEOBoard Membercurrent2024 — presentBerlin, Germany
  5. VarjoBoard Member / Board Observercurrent2020 — presentHelsinki, Finland
  6. VeriffInvestorcurrent2020 — presentTallinn, Harjumaa, Estonia
  7. VSPARTICLEMember of the Board of Directorscurrent2024 — presentDelft, South Holland, Netherlands
  8. ArbonicsBoard Membercurrent2023 — presentTallinn and London
  9. MavenoidBoard Member / Board Obsevercurrent2021 — presentStockholm, Stockholm County, Sweden
  10. Ready Player MeInvestor2021 — 2025Estonia
  11. RidangoMember Of The Supervisory Board2020 — 2025Tallinn, Estonia
  12. LogmoreBoard Member2020 — 2025Finland
  13. SuperangelAdvisor2017 — 2020Palo Alto, California / Tallinn, Estonia
  14. IntertrustVP & GM, Data Platforms2017 — 2019Sunnyvale / San Francisco, California
  15. Atlantic CouncilMillennium Leadership Fellow2017 — 2019Washington, District Of Columbia
  16. Eesti 2.0Co-founder and Board Member2015 — 2018Estonia
  17. Planet OS (acquired by Intertrust Technologies Corporation)Founder & CEO2012 — 2017San Francisco Bay Area
  18. World Ocean CouncilBoard Director and Treasurer2013 — 2016Global
  19. ABBBusiness Development Manager, Baltic States2008 — 2012Baltic States
  20. ABBDevelopment Manager, Low Voltage Systems, Baltic States2007 — 2008Keila, Harjumaa, Estonia
  21. ABBDevelopment Engineer, Low Voltage Products, Baltic States2006 — 2007Keila, Harjumaa, Estonia
  22. FlydogCo-founder2007 — 2011Estonia
  23. GrabCADBoard Member2010 — 2011Estonia
  24. Saue Municipal GovermentCouncilman at Saue Town Council2002 — 2011Estonia
  25. TalTech – Tallinn University of TechnologyLecturer, Product Development2006 — 2010Estonia
  26. Ministry of Defense of EstoniaCo-Designer of the Memorial to the War of Independence (Statue of Liberty)2007 — 2009Estonia
  27. SeromarCEO2005 — 2006Estonia
  28. Tallinn University of TechnologyMechatronics Engineer2004 — 2005Estonia

Skills & more

Adult EducationVenture CapitalEntrepreneurship99Change Management47New Business Development38Start-ups99Strategy71Product Development40Project Management35Product Management25Software Development15Manufacturing19
+12 moreCADBig DataERPOperational ExcellenceRoboticsIndustrial EngineeringDesign EngineeringProduct DesignTeam BuildingOrganizational CultureManagementLeadership

Languages English · Estonian · Finnish · Russian

From Rainer's professional profile.

Investments

Per the firm's website.

Colleagues at NordicNinja

Akiko Shiono
Head of Business Development at NordicNinja
AS BaltCap
General Partner at NordicNinja
Carolyn Lizbeth Einmann
Operations Manager at NordicNinja
Claes Mikko Nilsen
Head of Founder & Investor Network at NordicNinja
Johan Åkesson
Investment Associate at NordicNinja
Kevin Dean
Chief of Staff at NordicNinja
Marek Kiisa
Managing Partner at NordicNinjaVC
Marek Kiisa
General Partner at NordicNinja

Frequently asked questions

Who is Rainer Sternfeld?
Founder-turned-investor focused on mission-critical technologies, including AI, compute, digital society, frontier tech, and robotics/automation.
Where does Rainer Sternfeld work?
Rainer Sternfeld is Founder of Planet OS and General Partner at NordicNinja.
What does Rainer Sternfeld invest in?
Rainer Sternfeld invests in Climate Tech, Deep Tech, Robotics.
What companies did Rainer Sternfeld found?
Rainer Sternfeld founded Planet OS.
What companies has Rainer Sternfeld invested in?
Investments tracked here include Arbonics, Lightyear, LiveEO, Mavenoid, Ready Player Me, Starship Technologies, Varjo, Veriff, VSParticle.
Where did Rainer Sternfeld go to school?
Rainer Sternfeld studied at TalTech – Tallinn University of Technology (MSc, Mechatronics (Cum Laude)); TalTech – Tallinn University of Technology (BSc, Mechanical Engineering); Saue High School (Saue Gümnaasium) (Cum Laude, Presidential Honors).

Founder mafias

Same school

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