UnannouncedVCInvestor

Third Sphere

Startup rounds since 2016 with a Third Sphere investor on the board, and the firm's own fund filings.

Raises
7
since 2016
Unannounced
0
no announcement found, of those filed since 2025
Funds
2
fund filings under the firm's name

Rounds

  1. Kelvin Systems, Inc.$8.9MFiled before 202525 May 2023 · Brooklyn, NY
  2. Resonant Link, Inc.$9.25MFiled before 20255 Jan 2022 · Shelburne, VT
  3. Cove Tool, Inc.$30MFiled before 202521 Dec 2021 · Atlanta, GA
  4. Cove Tool, Inc.$5MFiled before 202514 Oct 2020 · Atlanta, GA
  5. Swell Energy Inc.$13.6MFiled before 202516 Dec 2019 · Santa Monica, CA
  6. Radiator Labs, Inc.$1.15MFiled before 202529 Aug 2019 · Brooklyn, NY
  7. Radiator Labs, Inc.$2.41MFiled before 202521 Oct 2016 · Brooklyn, NY

By year

YearRaisesUnannounced
20231—
20221—
20211—
20201—
20192—
20161—

Raises are checked for an announcement from 2025 on.

Funds

The firm's own fund filings, each at its latest filing.

FundFiledSizeRaised
Third Sphere Fund IV, LP20 May 2022$100M$9.88M
Third Sphere Fund Iv-a, LP20 May 2022$100M$2.9M

Listed because a Third Sphere fund's filing names a director of each company. A name match is not a verified identity.