Certain Energy
Energy Storage · Energy & Utilities
Overview
We are developing the world’s lowest cost flow battery. Our mission is to enable the transition to 100% renewable energy by developing the cheapest form of long duration energy storage.
Funding and backers
Total raised
$13M
1 round on record
Latest round
$13M
Series A · Aug 2026 · 2 mo ago
Backers
1
Imperial College London
The money's age
Fresh money
2 months since the last round · not hiring
Momentum
20/100
fresh money
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series A | Aug 2026 | $13M | — | startuprise.co.uk |
Registers and programsofficial lists and records that name the company
| Legal entity | Certain Energy RFC Power Limited | its site |
Backed byfrom the funds' portfolios and accelerator catalogs
Financials
Total raised
$13M
Latest round
Series A
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Series A | 2026 | $13M | Details |
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors

Imperial College LondonVia a fund
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
