Investor Profile: Glasswing Ventures — Thesis, Cheque Size & How to Apply

Learning how to get funding from Glasswing Ventures starts with understanding its lane: a Boston-based, early-stage VC that calls itself a "first-capital-in investor" in AI-native and frontier technology startups for enterprise B2B and cybersecurity. Founded with its first fund in 2018 and operating under the banner "Where ideas take flight", the firm backs visionary founders using AI and frontier tech to reinvent enterprise and security markets — and it has made 70 investments since 2018, as the first institutional investor in over 90% of them.

Thesis & focus

Glasswing's investment theses "are rooted in the belief that disruption occurs when technological breakthroughs converge with market readiness". Its two classic theses are the Intelligent Connect Thesis (smart data infrastructure, cognitive human augmentation, intelligent verticals) and the Intelligent Protect Thesis (cyber-physical convergence, data security, privacy and compliance, coordinated defense). Fund III extends this into vertical AI, physical AI, AI adaptive infrastructure, intelligent enterprise defense, collaborative intelligence platforms and next-gen compute.

Sectors & stages

Pre-seed and seed, full stop. Glasswing leads and co-leads pre-seed and seed rounds and keeps meaningful reserves for follow-ons. Fund III is expected to fund 25 startup companies over its investment period. The firm runs a Frontier Tech pre-seed program for even earlier bets, and its core portfolio has collectively raised more than $650 million in follow-on capital.

Fund size & cheque size

Glasswing Ventures closed an oversubscribed Fund III of over $200 million in November 2025 — its largest fund to date, dedicated to pre-seed and seed investments. Its second fund, Fund II, closed at an oversubscribed $158M in September 2022. The firm does not publish a fixed cheque-size range; as a pre-seed/seed lead it writes early first cheques rather than growth rounds.

Glasswing Ventures funding: notable portfolio

Named bets include ChaosSearch (whose CEO Ed Walsh credits Glasswing's "Building Partners" model with C-level support "out of reach for early-stage startups"), AI-native security data pipeline Realm.Security ($15M Series A, Glasswing participating), contract-intelligence platform Infinity Loop ($5M seed), pharmacy-automation startup Asepha ($4M seed led by Glasswing Ventures with Core Innovation Capital), international-shipping platform Ship Angel ($5M, co-led by Glasswing Ventures), construction-risk AI Enlaye ($5M seed led by Glasswing Ventures) and engineering-intelligence platform Flux ($5M, Glasswing participating).

Partners & team

The firm was founded by Rudina Seseri, Founder and Managing Partner, and Rick Grinnell, Founder and Managing Partner, with Kleida Martiro as Managing Director. The team is 14 people — "builders and operators" — backed by 62 exclusive advisors and advisory councils that give founders direct access to enterprise customers, talent and domain expertise.

How to apply for funding

Glasswing publishes a direct route: founders building agentic platforms for enterprise B2B or cybersecurity are invited to email [email protected], and the firm's general contact sits at 275 Newbury St., Boston, MA 02116. More broadly, the firm leans on deep ties with top-tier AI research universities — academic and research founders are a natural channel. A warm introduction through its advisor network never hurts, but this is one of the more directly reachable seed funds on this list.