Niels Carlsen
Founding Partner at Defence Builder
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolNiels Carlsen is a founding partner and investor focused on early-stage modern defence, space and cyber tech, currently leading fundraising for Final Frontier Fund II after closing a 4.5mEUR, 50%-oversubscribed first fund. With a PhD and MSc in Software Engineering from DTU and more than 15 years of international operational tech experience, he blends deep technical understanding with hands-on startup building—from CTO roles in early internet ventures to leading investments at Seed Capital since 2007. He has a proven track record backing and scaling major Nordic startups (early investor in Trustpilot; board roles at Vivino, Lunar, Dixa and many others) and routinely helps founders attract international capital. Niels combines venture-sourcing instincts with product and engineering empathy, advising accelerators like ESA BIC Denmark and Defence Builder on strategy and commercialization. An adventurous problem-solver, he once captained a two-year family circumnavigation by yacht—a leadership experience he likens to founding a startup. Based in Copenhagen, he now focuses on dual-use space and defence deeptech where commercial scale meets national security impact.
9 years of coding experience
13 years of employment as a software developer
Technical University of Denmark
Github Skills (48)
package-json10
json-data9
json9
java9
jsonpath9
reference-implementation9
layout-engine8
forecast8
breakpoints8
resize8
layout8
api8
api-documentation8
fastjson8
grid8
Programming languages (3)
Github contributions (5)
tilds/test_repo_2
Mar 2019 - Apr 2019
Contributions:5 comments, 26 issues in 20 days
Forecast-it/API
Jan 2019 - Sep 2021
Contributions:37 commits in 2 years 9 months
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