Funded Energy Startups in Seattle
Seattle-based energy funding in the most recent 15 entries spans from 2020-06-11 (WiBotic, Inc) to 2025-10-06 (Membrion).
Seattle-based energy funding in the most recent 15 entries spans from 2020-06-11 (WiBotic, Inc) to 2025-10-06 (Membrion). The largest disclosed round is Omnidian’s $87M on 2025-04-21, which dwarfs the next-largest disclosed amount of $20M (Membrion, 2025-10-06) and leaves most other disclosed rounds clustered well below that level. Stage information is heavily non-specific: 9 of 15 rows list “Series Unknown,” and 2 of 15 are “undisclosed” by amount (Mazama on 2024-11-21, BattGenie on 2023-02-16).
The timing is also clustered. There are 3 disclosed rounds between 2025-04-21 and 2025-10-06 (Omnidian $87M on 2025-04-21; Avalanche Energy $10M on 2025-07-23; Membrion $20M on 2025-10-06). Earlier, 2024 shows another concentration, with multiple rounds between 2024-02-20 and 2024-10-16 (Electric Era Technologies $1M, Oscilla Power $750K, Edo $5M, Sironix Renewables $3M).
Most recent rounds
15 shownRelated listings
Frequently asked
What’s the largest disclosed round in this Seattle energy list, and how does it compare to other disclosed amounts?
Omnidian’s $87M on 2025-04-21 is the only disclosed round above $50M. The next-largest disclosed amount is $20M for Membrion on 2025-10-06, with other disclosed rounds such as Zap Energy’s $160M (2022-06-07) still far from the current peak concentration but higher than most 2024–2025 figures like $10M (Avalanche Energy, 2025-07-23).
How concentrated are the most recent deals by time (e.g., last ~6 months of the listed window)?
Within the 2025-04-21 to 2025-10-06 span, three deals appear: Omnidian ($87M, 2025-04-21), Avalanche Energy ($10M, 2025-07-23), and Membrion ($20M, 2025-10-06). In contrast, the earliest entry in the table is WiBotic, Inc on 2020-06-11 ($6M), showing a longer tail back to 2020.
Is there an over-represented stage classification, given how many rounds are labeled “Series Unknown” or “undisclosed”?
“Series Unknown” appears in 9 of 15 rows (e.g., Mazama is “Series Unknown” with an undisclosed amount on 2024-11-21; Edo is “Series Unknown” with $5M on 2024-08-05). Amounts are also undisclosed in 2 of 15 rows (Mazama on 2024-11-21; BattGenie on 2023-02-16), limiting confidence in any strict stage-versus-size analysis.
Which disclosed rounds cluster in 2024, and what range do they cover?
2024 contains multiple disclosed amounts concentrated between $750K and $10M: Electric Era Technologies ($1M, 2024-02-20), Oscilla Power ($750K, 2024-09-12), Edo ($5M, 2024-08-05), and Sironix Renewables ($3M, 2024-10-16), plus a $10M entry earlier in the sequence (LevelTen Energy at $10M on 2023-12-06). Against this, only the 2025 disclosed sizes reach the table’s top tier (Omnidian $87M on 2025-04-21).
Are there outliers (by size) or items that stand out because the amount is not disclosed?
Size-wise, Omnidian’s $87M (2025-04-21) is a clear outlier compared with most 2024–2025 disclosed rounds such as Oscilla Power’s $750K (2024-09-12) and Electric Era Technologies’ $1M (2024-02-20). Separately, two rows are undisclosed by amount—Mazama on 2024-11-21 and BattGenie on 2023-02-16—so they can’t be compared on magnitude even though both are listed as “Series Unknown”.
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