Funded Energy Startups in Cambridge
Disclosed funding spans from $50K (Comcor, 2023-09-11) to $1.8B (Commonwealth Fusion, 2021-12-01).
Disclosed funding spans from $50K (Comcor, 2023-09-11) to $1.8B (Commonwealth Fusion, 2021-12-01). The $1.8B round is an extreme outlier that dwarfs the rest of the disclosed amounts, which largely fall below $100M (e.g., 24M Technologies at $87M on 2024-09-05 and fourth-close Fourth Power at $20M on 2025-09-18). Stage and disclosure patterns also stand out: five of the 13 rows carry “Series Unknown”/“Venture - Series Unknown” (Sora Fuel on 2025-08-11, Nyobolt on 2025-04-16, Echion Technologies on 2024-11-21, Quaise on 2023-12-12, and Origami on 2022-09-12) and one is explicitly “undisclosed” (Sora Fuel, 2025-08-11). Geographically, Cambridge splits across Massachusetts and Cambridgeshire, with most disclosed rounds tied to Cambridge, Massachusetts (e.g., Fourth Power $20M on 2025-09-18; 24M Technologies $87M on 2024-09-05; Commonwealth Fusion $1.8B on 2021-12-01).
Most recent rounds
13 shownRelated listings
Frequently asked
What’s the largest disclosed round in this Cambridge energy slice, and does it meaningfully change the distribution?
Commonwealth Fusion’s $1.8B round on 2021-12-01 is dramatically larger than every other disclosed amount shown, including 24M Technologies’ $87M on 2024-09-05. The next-highest disclosed figures remain well below that level, making the $1.8B entry a clear scale outlier.
Do most of these rounds cluster in a recent time window, or are they spread out?
The displayed set runs from 2021-12-01 (Commonwealth Fusion) to 2025-09-18 (Fourth Power), spanning about four years. Several rounds cluster in 2024 (e.g., 2024-07-09 ZwitterCo $58M; 2024-08-06 SYSO Technologies $15M; 2024-09-05 24M Technologies $87M; 2024-11-21 Echion Technologies $13M; 2024-12-04 illumion $3M), but the earliest years still contribute meaningful entries like Kuva Systems ($11M on 2023-01-25).
Which Cambridge geography appears most often in the list, given the repeated “Cambridge” label?
Cambridge, Massachusetts accounts for the majority of rows, including Fourth Power (2025-09-18, $20M), 24M Technologies (2024-09-05, $87M), ZwitterCo (2024-07-09, $58M), SYSO Technologies (2024-08-06, $15M), Kuva Systems (2023-01-25, $11M), Quaise (2023-12-12, $13M), and Commonwealth Fusion (2021-12-01, $1.8B). Cambridge, Cambridgeshire appears in a smaller cluster (illumion, 2024-12-04, $3M; Nyobolt, 2025-04-16, $30M; Echion Technologies, 2024-11-21, $13M; Origami, 2022-09-12, $6M).
What does the disclosure/stage mix look like, and how much is classification missing?
Disclosed rounds include multiple labeled stages (e.g., Commonwealth Fusion is “Series B” on 2021-12-01 for $1.8B; Fourth Power is “Series A” on 2025-09-18 for $20M; SYSO Technologies is “Series B” on 2024-08-06 for $15M). However, five of 13 rows are marked “Series Unknown”/“Venture - Series Unknown” (Nyobolt, Echion Technologies, Quaise, Origami, Sora Fuel) and one row is explicitly “undisclosed” (Sora Fuel, 2025-08-11).
Are any entries unusually small or placed in a different funding scale compared with the rest?
Comcor is a strong low-end outlier at $50K on 2023-09-11, far below other disclosed amounts like Kuva Systems ($11M on 2023-01-25) and illumion ($3M on 2024-12-04). At the high end, Commonwealth Fusion’s $1.8B (2021-12-01) similarly pulls the distribution away from the mid-range values.
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