Pulse Fund Research
Investment Thesis
Pulse Fund is a solo-GP venture capital fund founded in 2022 by Tenzin Seldon, a Rhodes Scholar and longtime climate investor who traces her focus on climate to watching Himalayan glaciers retreat as a child. The fund's central thesis, which it brands "Pulse Time," is that the energy transition, infrastructure, food and agriculture, and mobility sectors move together rather than independently: a breakthrough in one area (for example, a new battery chemistry) creates downstream opportunities in the others. Seldon has said Pulse underwrites these four verticals together because "a breakthrough in one keeps turning up as the reason a company in another suddenly works," and that investors who evaluate sectors in isolation "miss those companies, or they price them wrong." The firm brands its operating philosophy as the "Pulse Way," a set of tenets emphasizing long-term staying power, uncompromising diligence, and a founder-first, hands-on posture.
Sector Focus
Pulse invests across four interconnected verticals: Energy Transition, Infrastructure, Food + Agriculture, and Mobility. Portfolio examples span carbon-negative engineered wood (InventWood), AI-driven concrete manufacturing (AICrete), building electrification finance (BlocPower), curbside EV charging infrastructure (it's electric), electric shuttle and bus manufacturing (Endera Motors), CO2-to-fuel conversion (Twelve), satellite-based flood-risk data for parametric insurance (Floodbase), commercial refrigeration and HVAC energy management (GlacierGrid), post-wildfire reforestation carbon removal (Mast Reforestation), alternative plant protein (Plantible Foods), and enterprise carbon and financial planning software (Clarasight, Unravel Carbon).
Stage Focus
Public materials describe Pulse as backing "early-stage" climate companies; no fund page specifies formal round cutoffs. Based on portfolio composition, most known portfolio companies had already closed institutional seed or Series A rounds, so the fund appears to concentrate on Seed through Series A without a documented pre-seed program.
Check Size
No check-size range is published on the website or in press coverage of the $63M fund close. This should not be assumed from fund size alone and is flagged as a research gap.
Lead Tendency
No public source documents Pulse leading or co-leading a specific round. Classified as unknown pending deal-level confirmation.
Recent Activity
Pulse closed its $63M inaugural institutional fund on September 21, 2026, formalizing a vehicle that already held earlier bets across the portfolio listed above, per ESG Today and Morningstar/BusinessWire coverage. The fund is a solo-GP vehicle led by Managing Partner Tenzin Seldon. In August 2024, Pulse signed a Space Act Agreement with NASA's Goddard Space Flight Center, giving portfolio companies access to Goddard's public Earth-observation data and climate science expertise, an unusual technical-diligence and go-to-market resource for a fund of this size. Seldon has also been visible in climate finance thought leadership: a September 2026 Forbes profile, a UNGA Climate Week salon co-hosted with AudacityAI founder Kunal Sood where she introduced a "Gross Domestic Regeneration" framework, and a keynote at the Nat Gala, a nature-finance-focused gala, on the accounting gap in nature investing.
Portfolio Highlights
Named portfolio companies include InventWood, whose "Superwood" engineered-wood material was covered by CNN and TechCrunch for being stronger than steel; Twelve, a CO2 electrolysis and synthetic fuels company founded by Stanford PhDs; BlocPower, a building electrification platform recognized by the White House, EPA and TIME; Floodbase, a satellite-based flood monitoring company enabling parametric insurance; Clarasight, an enterprise carbon and finance planning platform used by Microsoft, LinkedIn, AstraZeneca and Deloitte; and Unravel Carbon, an AI sustainability platform used across 50+ countries. No exits are documented publicly.
Team
- Tenzin Seldon, Founder & Managing Partner: Rhodes Scholar and Truman Scholar, former UNEP disaster-risk-reduction officer, holds board seats at Floodbase, Unravel Carbon, Mast Reforestation, Endera, Twelve and BlocPower, plus outside board and advisory roles including Marathon Digital Holdings and Stanford HAI
- Iman Naqvi, Investment & Operations
- Rhod Needham, Venture Partner
- Kim Mueller, CFO/COO
- Jeffrey Berkus, Director of Special Initiatives
- Brian Guzman, Counsel
- Sarah Mattina, Marketing & Communications
- Estelle Archer, Executive Assistant
Decision Process
Pulse is a solo-GP fund: Tenzin Seldon is the sole Managing Partner and investment decision-maker, supported by an investment and operations team and a venture partner rather than a multi-partner investment committee.
Founder Preferences
The "Pulse Way" tenets describe a preference for founders with "real staying power," building vertically integrated, capital-efficient businesses with de-risked supply chains and technical or scientific defensibility, such as InventWood's materials-science IP, Twelve's electrochemistry, and Floodbase's remote-sensing science, over pure software or single-point solutions.
Geographic Focus
Portfolio companies are concentrated in the United States (California, New York, Washington, Ohio, Maryland), with the fund itself based in Los Angeles. One portfolio company, Unravel Carbon, is headquartered in Singapore, indicating some willingness to back non-US climate software companies with US and global enterprise customer bases.