Koen Bok

Co-founder & CEO, Framer at framer

Reviewed Updated Jul 29, 2026

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Location Amsterdam, Netherlands
Check Size $5K-$50K
Last Verified Investment Upstream (Pre-Seed) — Jun 2026
Social @koenbok LinkedIn
Stage Focus
pre-seed seed series-a
Sector Focus
design-tools developer-tools saas productivity ai

Background

Koen Bok is co-founder and CEO of Framer, the Amsterdam-based no-code website builder. He describes himself on his personal site as “half designer, half programmer and a little bit of an entrepreneur” 1.

Bok began his career in 2006 as co-founder and general director of Sofa B.V., a 15-person Amsterdam design studio that won two consecutive Apple Design Awards — one for Checkout and one for Versions — and worked with clients including TomTom, Mozilla, and Nike 2. Facebook acquired Sofa in 2011, and Bok spent more than two years there as a product designer working on Messages, Ads, Video, and Photos 2 3.

Bok co-founded Framer with Jorn van Dijk in 2014 after leaving Facebook 3. Framer initially shipped as a prototyping tool for designers before pivoting in 2021 to become a full website builder 4. The company crossed $50M ARR in 2025 and raised a $100M Series D at a $2B valuation in August 2025, led by existing investors Meritech and Atomico with Accel returning 5 6. Bok co-runs Festina, an early-stage investment fund, alongside Jorn van Dijk 1 7.

Stated Thesis

Festina, the fund Bok runs with Jorn van Dijk, publicly describes its focus as “software companies with world-class user experience design” 7. The fund’s motto — “Festina Lente,” or “make haste slowly” — is also displayed on the site 7.

On his personal website, Bok invites entrepreneurs to reach out directly: “If you have one and you think I can help, drop me a line” 1. Beyond this and the Festina one-liner, Bok has not published a formal investment thesis document.

Inferred Thesis

Based on 8 verified angel investments (of ~20 reported by NFX Signal 8); this analysis covers approximately 40% of his tracked activity. Because the verified sample is small and biased toward larger, well-publicized rounds, sector percentages are omitted in favor of qualitative description.

Sector pattern: Verified investments cluster tightly around software tools for designers, developers, and product teams — Pitch (presentation software) 9, Linear (project management for software teams) 10, CodeSandbox (in-browser development environment) 11, Softr (no-code app builder) 12, VoidZero (open-source JavaScript toolchain) 13, and Spline (3D design tool, via Festina) 7. Revue (newsletter tool, acquired by Twitter in 2021) fits the same design/tools pattern 14. This is a narrow-lane portfolio: every verified investment is a productivity, design, or developer tool.

Stage pattern: Verified rounds span pre-seed through Series A. NFX Signal’s tracking of 20 investments shows the same pattern extending through 2026, with recent participation in pre-seed and seed rounds for Upstream ($3M pre-seed, June 2026), Bounti ($5M seed, March 2026), Modem ($4M pre-seed, February 2026), and Lemni ($4M pre-seed, February 2025) 8.

Check size: NFX Signal reports a range of $5K-$50K with a sweet spot of $25K 8.

Geographic pattern: Portfolio spans US (Linear, Pitch, VoidZero), Europe (Softr in Berlin, Mollie in Amsterdam, Spline), consistent with Bok being based between Amsterdam and Barcelona.

Co-investor pattern: Bok frequently appears in rounds alongside other product-builder angels — most notably his Framer co-founder Jorn van Dijk (Linear, VoidZero, and via Festina), Christian Reber (Pitch founder, at Softr alongside Bok) 12, and Guillermo Rauch (Vercel; also invested in CodeSandbox) 11. His investments consistently sit in rounds led by top-tier funds (Index Ventures at Pitch, Accel at Linear Series B and VoidZero, FirstMark at Softr).

Notable exits: CodeSandbox (acquired by Together AI in December 2024) 15 and Revue (acquired by Twitter in 2021) 14.

Portfolio

Company Year Stage Source
Pitch 2019 Series A ($19M) Pitch blog 9
CodeSandbox ~2019 Seed / Advisor NFX Signal, CodeSandbox exit context 8 15
Revue ~2015 Angel Portfolio exits list 8 14
Softr 2022 Series A ($13.5M) Softr blog 12
Linear 2023-09-14 Series B ($35M) Linear.app announcement 10
VoidZero 2025-10-30 Series A ($12.5M) VoidZero blog 13
~unknown Spline – Series A (via Festina)
Upstream 2026-06 Pre-Seed ($3M) NFX Signal 8
Bounti 2026-03 Seed ($5M) NFX Signal 8
Modem 2026-02 Pre-Seed ($4M) NFX Signal 8
Raindrop 2025-12 Seed ($15M) NFX Signal 8
Polar 2025-06 Seed ($10M) NFX Signal 8
Lemni 2025-02 Pre-Seed ($4M) NFX Signal 8
Viktor 2026-05 Series A ($75M) NFX Signal 8

Note: NFX Signal reports ~20 total investments; approximately 12 additional investments are referenced in aggregator databases but were not independently verified against primary sources for this profile.

In Their Own Words

On product-market fit, from a Designer Founders interview: “If you don’t have product market fit, then nothing seems to work and everybody will start pointing at each other” 3.

Also from Designer Founders: “The most important thing is building something that people want” 3.

On Framer’s Series D and strategy, quoted by TechCrunch (August 28, 2025): “With this funding, we’re doubling down on enterprise growth and AI, so any company can confidently run their entire website on Framer” 16.

On Framer’s product model, quoted in Forbes (September 28, 2023): “You design the website in Framer and then at the end you click publish and we turn it into a website that we also host” 17.

On the design/build workflow gap that motivated Framer’s pivot, also quoted by Forbes: “We discovered a really big juicy problem because traditional web design happens in one tool like Figma, then actual building is done elsewhere” 17.

On his own identity, from his personal site: “I’m half designer, half programmer and a little bit of an entrepreneur” 1.

What Founders Say

No independently sourced founder testimonials found. Portfolio founders (e.g., Karri Saarinen at Linear, Christian Reber at Pitch, Ives van Hoorne at CodeSandbox) have publicly welcomed Bok as an investor in their round announcements 9 10 11, but no substantive first-person quote about working with Bok specifically was located during this research.

Sources

  1. Koen Bok, personal website. Accessed July 2026. https://koenbok.com/↩↩↩↩

  2. Courier.fyi, “The Framer success story: how two Dutch designers sold a studio to Facebook, built a prototyping tool that plateaued, and pivoted their way to a $2 billion valuation.” Accessed July 2026. https://courier.fyi/case-studies/the-framer-success-story-how-two-dutch-designers-sold-a-studio-to-facebook-built-a-prototyping-tool-that-plateaued-and-pivoted-their-way-to-a-2-billion-valuation/↩↩

  3. Designer Founders, “Koen Bok” profile page. Accessed July 2026. https://designerfounders.com/koen-bok↩↩↩↩

  4. Framer Blog, “Koen & Jorn: Framer Reloaded — First of Kind,” March 17, 2026. Accessed July 2026. https://www.framer.com/blog/koen-jorn-framer-reloaded-first-of-kind/↩

  5. Tech Startups, “Framer raises $100M series D funding, hits $2B valuation as no-code demand surges,” August 28, 2025. Accessed July 2026. https://techstartups.com/2025/08/28/framer-raises-100m-series-d-funding-hits-2b-valuation-as-no-code-demand-surges/↩

  6. BusinessWire, “Framer Raises $100 Million Series D at a $2 Billion Valuation to Redefine How Businesses Build Websites,” August 28, 2025. Accessed July 2026. https://www.businesswire.com/news/home/20250828901842/en/Framer-Raises-$100-Million-Series-D-at-a-$2-Billion-Valuation-to-Redefine-How-Businesses-Build-Websites↩

  7. Festina, fund website. Accessed July 2026. https://festina.vc/↩↩↩↩

  8. NFX Signal, “Koen Bok’s Investing Profile.” Accessed July 2026. https://signal.nfx.com/investors/koen-bok↩↩↩↩↩↩↩↩↩↩↩↩

  9. Pitch blog, “Pitch raises $19M from Index, Slack & more.” Accessed July 2026. https://pitch.com/blog/pitch-raises-19-million-from-index-slack-and-more↩↩↩

  10. Linear, “Linear raises $35M Series B led by Accel,” September 14, 2023. Accessed July 2026. https://linear.app/now/series-b↩↩↩

  11. Foundersuite, “Koen Bok” investor profile (references CodeSandbox seed round, Kleiner Perkins-led). Accessed July 2026. https://www.foundersuite.com/investors/koen-bok↩↩↩

  12. Softr blog, “Softr raises $13.5M to create the world’s largest ecosystem for building no-code apps,” January 18, 2022. Accessed July 2026. https://www.softr.io/blog/worlds-largest-ecosystem-for-building-no-code-apps↩↩↩

  13. VoidZero, “VoidZero Raises $12.5M Series A,” October 30, 2025. Accessed July 2026. https://voidzero.dev/posts/announcing-series-a↩↩

  14. Silicon Republic, “Start-up of the week: Revue.” Accessed July 2026. https://www.siliconrepublic.com/start-ups/revue-startup-email-newsletters↩↩↩

  15. Crunchbase, “CodeSandbox — Company Profile & Funding” (references Together AI acquisition, December 12, 2024). Accessed July 2026. https://www.crunchbase.com/organization/codesandbox↩↩

  16. TechCrunch, “No-code website builder Framer reaches $2B valuation,” August 28, 2025. Accessed July 2026. https://techcrunch.com/2025/08/28/no-code-website-builder-framer-reaches-2b-valuation/↩

  17. Forbes, “Design Startup Framer Reinvented Itself After Stalled Growth— And Now It’s Challenging Figma,” September 28, 2023. Accessed July 2026. https://www.forbes.com/sites/iainmartin/2023/09/28/framer-website-builder-design-software-figma-challenger/↩↩