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Overview

Overview

Third Sphere is a leading seed-stage venture capital fund focused on rapid, scalable climate action and outsized financial returns. The Third Sphere Fellowship is a four-month experiential learning program that trains the next generation of climate tech investors.

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Fund Background

Founded in 2013, Third Sphere is led by three diverse general partners: Shaun Abrahamson, Stonly Blue, and Shilpi Kumar. The fund operates with 10 team members across the US West Coast, East Coast, and EU, supported by a global community of LPs, founders, and talent.

Fellowship Program Details

### Duration and Compensation
- Length: Four months
- Stipend: $8,000 paid to fellows
- Format: Virtual program accessible globally

### Curriculum and Tracks
The fellowship offers specialized learning paths:
- VC Track: Venture capital investment and deal evaluation
- Credit Track: Debt and alternative capital structures
- Platform Track: Ecosystem enablement and founder support

### Learning Objectives
Fellows learn to invest in and support founders building climate tech startups at the earliest stages. The program emphasizes:
- Climate-focused venture evaluation
- Seed-stage investment analysis
- Portfolio company support strategies

Program Success

The Third Sphere Fellowship is now two years old and has exceeded expectations in attracting quality fellows and creating value for the climate tech ecosystem. The program has become a signature offering of the fund's commitment to developing the next generation of climate investors.

Investment Thesis

Third Sphere focuses on rapid, scalable climate action with simultaneous financial returns—backing founders who combine climate commitment with business discipline at the seed stage.

Investment focus

Third Sphere focuses on rapid, scalable climate action with simultaneous financial returns, backing founders who combine climate commitment with business discipline at the seed stage.

Program details

Designed for Investors, Fund Managers. The program is remote. Participation is generally part time.

Who it is for

Third Sphere’s Q4 2025 fellowship page invites people interested in helping startup founders accelerate climate-tech impact and says applicants with existing investment experience are welcome. It does not establish a minimum experience or education requirement, or geographic eligibility. A 2026 intake has not been confirmed.

Check if you are eligible

Check your eligibility for Third Sphere Fellowship

Benefits

For its advertised Q4 2025 offering, Third Sphere describes practical work with founders and deals, partner-meeting participation, and access to climate-tech founders. These advertised benefits have not been reconfirmed for a 2026 cohort.

Timeline

The fellowship lasts for four months, providing a structured learning experience in climate tech investment.

How to go about it

  1. Read what it asks for

    Who can apply, how people get in and whether it is open right now.

  2. Have something to show

    Programs pick people whose work they can already point to. Put yours where it can be found.

  3. Apply the way the program asks

    The program has not published how to apply. Terms and dates change. Check the official page before you act.

What it pays

Fellows receive a stipend of $8,000 during the four-month program.

Questions about this program

Who is invited to apply?

The Q4 2025 page invites people interested in helping climate-tech founders and says applicants with investment experience are welcome. It does not specify a minimum experience requirement or geographic eligibility.

What does the advertised fellowship offer?

The Q4 2025 offering describes practical work with founders and deals, partner meetings, and access to climate-tech founders. It also advertises an $8,000 stipend; these terms have not been reconfirmed for a 2026 cohort.

Is a current application cycle open?

That is unconfirmed. When inspected on October 2, 2026, the page still advertised Q4 2025 and the accessible form displayed only 2025 cohort choices.

What does the application ask for?

The linked form asks applicants to explain their interest in Third Sphere and describe startup or investment-related experience. It also presents track choices and asks about availability.

About Third Sphere

Third Sphere

Venture Capital

Investing in climate solutions for a sustainable future.

Lists that include this program

From public sources

What the sources say about Third Sphere Fellowship

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Location
Ann Arbor, Michigan, United States
Format
In Person

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