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Tempo Ventures
Dennis Phelps runs Tempo Ventures, a concentrated early-stage firm targeting enterprise software, AI, digital health, and robotics from San Francisco.
Tempo Ventures
Founded in 2012 by Dennis Phelps, Tempo Ventures operates from San Francisco with a concentrated early-stage mandate. Phelps brought institutional discipline to seed investing, shaped by prior experience at Silicon Valley Bank and Institutional Venture Partners. The firm launched during a period when seed funds were ballooning in quantity and check size; Tempo took the opposite approach, keeping fund sizes modest and portfolios intentionally narrow. Tempo Ventures targets enterprise software, applied AI and machine learning, digital health, fintech infrastructure, and robotics. The firm leads or co-leads seed rounds, reserving meaningful capital for follow-on investments into breakout performers. Known portfolio companies include Mux (video infrastructure), Clearbit (business intelligence, acquired by HubSpot in 2023), and Pave (compensation benchmarking). Geographic focus centers on North America, particularly San Francisco, New York, and emerging tech hubs across the United States and Canada. The firm occasionally participates in European seed rounds when the founding team has strong ties to its network. Tempo runs a deliberately compact operation, with a partnership group small enough to make decisions without committee drag. The firm raised its fourth fund in 2022, maintaining the same concentrated strategy across vintages (per Axios, 2022). March 2024: Led a seed round for Orbital, a B2B payments infrastructure company, alongside existing Tempo portfolio relationships (per Orbital, March 2024). No adjacent vehicles or philanthropic structures have been publicly disclosed. Tempo Ventures belongs to a generation of venture firms that treat fund concentration as a competitive feature rather than a constraint. By writing fewer checks with higher ownership targets, the firm avoids the index-like returns profile that has pressured seed-stage venture broadly. This portfolio construction gives Tempo capacity to take board seats and act as a true operational partner during the fragile period between seed and Series A, when most venture-backed companies fail.
General information
Firm type
Venture Capital
Year founded
2012
AUM
Undisclosed
Location
Region
North America
Country
United States
City
San Francisco
Corporate office
San Francisco, CA, United States
Principals
Dennis Phelps
General Partner & Founder
Sector focus
Frequently asked questions
Who runs investment decisions at Tempo Ventures?
Dennis Phelps, Tempo's founder and General Partner, leads investment decisions with a compact partnership group. Phelps' background spans Silicon Valley Bank and Institutional Venture Partners, which shaped the firm's institutional discipline in early-stage investing. The small partnership structure enables rapid decision-making without committee bottlenecks.
How does Tempo Ventures construct its portfolio differently from other seed funds?
Tempo deliberately limits each fund to roughly 20 portfolio companies, far fewer than most seed-stage peers who index across 40 to 60 startups. This concentration strategy targets higher ownership stakes and deeper engagement with each founding team. The firm reserves significant follow-on capital for breakout performers, creating a barbell approach that pairs conviction-led seed bets with concentrated follow-on deployment.
What sectors does Tempo Ventures explicitly target?
Tempo invests in enterprise software, applied AI and machine learning, digital health, fintech infrastructure, and robotics. The firm gravitates toward technical founding teams building B2B products rather than consumer-facing applications. Within enterprise software, Tempo has demonstrated particular interest in API-first companies, developer tools, and data infrastructure.
Does Tempo Ventures lead rounds or participate alongside other investors?
Tempo typically leads or co-leads seed rounds, taking an active governance role through board seats or observer rights. The firm collaborates regularly with other seed-stage funds and occasionally partners with multi-stage firms on follow-on rounds. This lead-investor posture reflects the concentrated portfolio model, which requires high-conviction underwriting rather than passive check-writing.
What is Tempo Ventures' geographic investment scope?
Tempo's primary geographic focus is North America, with particular concentration in San Francisco, New York, and emerging tech hubs across the United States and Canada. The firm evaluates European seed opportunities selectively when the founding team has strong ties to Tempo's network or when the company has early traction in North American markets.
How does Tempo Ventures handle follow-on investments?
The firm reserves significant capital within each fund for follow-on participation in breakout companies. This structure commits Tempo to supporting portfolio companies through Series A and beyond, rather than the spray-and-pray model common among seed funds that write many small checks and reserve little for later rounds. The concentrated portfolio size makes meaningful follow-on capacity feasible per fund.
What is Tempo Ventures' known posture on co-investments alongside external firms?
Tempo regularly co-invests alongside other seed-stage and multi-stage venture firms, particularly those with complementary enterprise or deep-tech expertise. As a lead investor, Tempo often syndicates rounds to bring strategic value beyond capital. The firm does not operate a formal co-investor club or LP co-investment program based on public disclosures.
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