Third Sphere
Third Sphere is a venture capital firm based in New York, United States, focused on Pre-Seed to Series B startups in Climate & Energy, Hardware & Deep Tech, and Mobility & Logistics. This profile covers its focus and how founders can get in front of it in 2026.
- Investment focus
- Climate & EnergyHardware & Deep TechMobility & LogisticsPropTech & Real EstateManufacturing & IndustrialImpact & Social Enterprise
- Investment stages
- Pre-SeedSeedSeries ASeries B
- Location
- New York, United States
- Founded
- 2013
- Team size
- 11-50
- Portfolio companies
- 100+
- Latest deal on record
- March 2026
About Third Sphere
Third Sphere is Pre-Seed and Seed stage fund focused on rapid, scalable climate action and targeting outsized impact and outsized returns.
Fund strategy: Climate action - Track record of over 100 portfolio companies that unlock GHG reduction and resilience via strategies like electrification that don't ask for premiums, just better products and services such as Cove Tool (building design), OneWheel (consumer EV), and Gradient (home hvac). First-in Capital - focus on ownership in pre-seed/seed stage teams and markets where we can help unlock institutional funding and multiple opportunities to expand ownership before Series A. Earned access - GPs (Shaun, Stonly, and Shilpi) have 9 years together with public reputation and ranks including; top 1% of investors on NFX for climatetech; #1 ranked early stage fund by Climate 50; named in the top 10 of VCs who founders love the most by Techcrunch Repeatable differentiation - Proprietary curated network with over 12k people, enabling 1k annual 1:1 introductions, along with access to asset finance.
Source: the organization's public company profile.
How to pitch Third Sphere
The founders who hear back from Third Sphere lead with traction and a clear ask that matches its stage, not a generic mass email. Build a targeted, verified list, write a personalized note, and track who opens it, all in one place.
Connect with Third Sphere
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "Third Sphere." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/vc/third-sphere
Frequently Asked Questions
What does Third Sphere invest in?
Third Sphere focuses on Climate & Energy, Hardware & Deep Tech, Mobility & Logistics, and PropTech & Real Estate. Match your sector and stage before reaching out, then find similar active investors on Round Funded.
What stage does Third Sphere invest at?
Third Sphere focuses on Pre-Seed to Series B rounds. Lead with traction that fits the stage when you reach out.
Is Third Sphere actively investing?
Yes. Round Funded's research found that Third Sphere has made a new investment or run a new cohort since 2024, and its latest deal on record is from March 2026. Reach out with a personalized pitch that fits its stage and focus, then track who opens it.
Where is Third Sphere based?
Third Sphere is based in New York, United States. You can reach out from anywhere with a pitch that matches its focus.
How do I contact Third Sphere?
Unlock a verified email for Third Sphere and reach out with a personalized pitch on Round Funded. We show only deliverable contacts, so your outreach does not bounce.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.