# Runtime Ventures

Runtime Ventures is a Venture Capital based in Arlington, United States.

## Overview

- **Organization type:** Venture Capital
- **Headquarters:** Arlington, United States
- **Region:** North America
- **Address:** Arlington, VA, United States
- **Founded:** 2023
- **Assets under management:** Undisclosed
- **Website:** www.runtime.vc
- **LinkedIn:** https://www.linkedin.com/company/runtime-vc

## Regulatory record

- **Reports private funds:** No

## About

Runtime Ventures invests in new ideas with digital design expertise. The firm has made 7 investments, including a Seed VC in SPLX on March 06, 2025. Runtime Ventures has 2 portfolio exits, with SPLX exiting on November 03, 2025.

## Sectors

- Cybersecurity
- AI/ML
- Enterprise Software

## People

- David Endler — General Partner & Co-Founder
- Michael Sutton — General Partner & Co-Founder

## Questions

### Who runs investment decisions at Runtime Ventures?

Co-founders David Endler and Michael Sutton serve as General Partners and collectively make investment decisions. Both are former cybersecurity founders and operators with prior exits, operating a consensus-driven process given the small, tightly integrated team structure shown on Runtime's website.

### How does Runtime Ventures source proprietary deal flow?

The firm's sourcing model relies on the depth of its founders' practitioner networks within the cybersecurity industry. As acknowledged by portfolio company founders like those from Claroty and Duo Security, Runtime's reputation as an operator-led fund attracts early referrals before companies formally reach market, creating an informal but repeatable origination channel.

### Does Runtime Ventures participate in fund commitments or only direct deals?

All publicly disclosed investment activity points exclusively to direct seed-stage equity positions in operating companies. There is no indication on the firm's website or in available materials that Runtime engages in fund-of-funds commitments, secondary purchases, or later-stage follow-on vehicles.

### What is Runtime Ventures' known posture on co-investments alongside external GPs?

Runtime does not explicitly market a co-investment program, but testimonials on its website indicate a collaborative approach where the firm joins seed rounds with other security-focused investors. The firm's operators view their value as augmenting, rather than displacing, syndicate partners in early-stage rounds.

### How does Runtime Ventures support portfolio companies beyond capital?

Portfolio company founders cite Runtime's role in facilitating recruitment of key hires and interfacing on product strategy during the formative years. These operational support activities are delivered directly by the General Partners and the Operating Partner, reflecting a service model grounded in practitioner experience rather than a formalized platform team.

## Related profiles

- [Runtide Capital](https://altss.com/profile/runtide-capital)
- [RunwayFBU](https://altss.com/profile/runwayfbu)

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Last updated: 2026-06-03T20:00:00.000Z

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