United Kingdom · 
Who invested in Stonewater?
Stonewater's investors include Sumitomo Mitsui Banking Corporation.
United Kingdom · Funded startup
Who invested in Stonewater
Funding summaryUpdated 26 Oct 2026
$103Mraised across 1 round since 2025, from 1 source
- Latest round
- Debt, $103MJul 2025
- Investors
- 1
The rounds
- Jul 2025
Everyone who backed them
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Quick answers about Stonewater
How much has Stonewater raised?
Stonewater has raised $103M across 1 round since 2025.
When did Stonewater last raise?
Stonewater's most recent round was a Debt of $103M in Jul 2025.
What was Stonewater's biggest round?
Its most recent round, $103M in Jul 2025, is also its largest on record.
Who backed Stonewater first?
Stonewater's first round on record, in Jul 2025, was backed by Sumitomo Mitsui Banking Corporation.
What stage is Stonewater at?
Stonewater's latest named round is a Debt, in Jul 2025.
Where is Stonewater based?
Stonewater is based in the United Kingdom.
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