Boldstart Ventures is a New York-based early-stage venture capital firm founded by Ed Sim in 2010. The firm focuses on enterprise software, developer infrastructure, and cybersecurity, backing founders at what it calls "day zero" – before product-market fit is established. Boldstart positions itself as a seed-stage lead investor and has built a track record in enterprise B2B software over more than a decade.
The firm operates primarily in the United States but invests globally. It has backed companies across developer tools, data privacy, security, and cloud infrastructure. Total AUM is not publicly disclosed. Boldstart has raised multiple funds; the firm does not routinely publish fund sizes, and no regulatory filing or press release with a confirmed figure was available at the time of writing.
Notable investments
- Snyk – developer security platform that reached unicorn status and became one of the most cited security tools in software development. snyk.io
- Kustomer – AI-powered CRM platform acquired by Meta (Facebook) in 2022 for a reported $1 billion. One of Boldstart's most prominent exits.
- BigID – enterprise data privacy and security platform. Raised over $300 million in total funding and is widely used by Fortune 500 companies.
- Stream – APIs for in-app messaging and activity feeds, used by developers building real-time applications.
- Observe.AI – conversation intelligence platform for contact centers using speech analytics.
Public information about Boldstart's specific crypto and blockchain portfolio is limited. The firm has historically concentrated on enterprise software rather than pure crypto-native protocols or tokens. Any crypto-adjacent investments likely sit in infrastructure, security, or developer tooling that overlaps with Web3 use cases.
Team
Ed Sim is the founder and managing partner. He has been active in venture capital since the late 1990s, previously serving as a partner at dawntreader Ventures. Sim writes a widely read blog, Beyond the Deal, where he shares thinking on enterprise software, founder relationships, and seed-stage investing. He is based in New York.
Boldstart has added additional partners over the years, though the firm remains small by design. Public information about the full current partner roster beyond Ed Sim is limited.
Recent activity
In 2024 and into 2025, Boldstart continued backing enterprise AI infrastructure companies as the market shifted toward applied AI in B2B software. The firm was active in early rounds for startups building on top of large language models for developer and security use cases. No major fund announcement or leadership change was publicly reported during this period.
Boldstart has faced the same headwinds as other seed-stage enterprise funds: longer paths to liquidity as IPO windows remained tight and M&A activity was selective. The Kustomer exit remains the firm's highest-profile liquidity event. More recent portfolio companies, including Snyk, have not yet reached public markets.
For investors and founders tracking Boldstart, the most reliable public sources are Crunchbase and Ed Sim's blog at beyondthedeal.net. The firm's official site is boldstart.vc.