Key facts
- Builder.io’s last known valuation is $1.9B (Dec 2025).
- It has raised $62.3M; the latest was Later Stage VC in Dec 2025.
- Notable investors include Gaingels, K5 Global, Greylock, Commerce Ventures, M12 — 25 tracked in total.
- 1 investment vehicle was formed to buy Builder.io shares in the last 12 months, reporting $114K sold to 5 investors, per SEC Form D filings.
- Status: Privately Held (backing).
- ·The complete investor list — 25 names
- ·Watchlist + deal alerts for Builder.io
- ·The full record, as it builds
Funding rounds
No funding rounds for Builder.io are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Secondary demand: investment vehicles
from SEC Form D filingsIn the last 12 months, 1 investment vehicle were formed to buy Builder.io shares, reporting $114K sold to 5 investors. Most recent filing Jan 2026. Vehicles like these are how secondary buyers pool demand for a name; a rising count is a demand signal.
About Builder.io
Developer of a content management system platform intended for building composable commerce, modern marketing sites, and multi-brand digital experiences. The company provides a platform that helps fix content development workflow, avoids waiting on development release cycles, and improves the visuals, thereby enabling business users and developers to measure conversions and understand visitors' behavior and performance.
- Sector
- Information Technology
- HQ
- San Francisco, CA, United States
- Founded
- 2018
- Employees
- 148
- Website
- builder.io/
- Ownership
- Privately Held (backing)
Builder.io doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Builder.io shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Builder.io in its N-PORT filings yet. We sweep new filings monthly.