Startup · United Kingdom
HexSeed Technology
HQ Aberdeen, United KingdomFounded 20251-10 employeesUpdated
HexSeed Technology transforms captured CO₂ into high-value supermaterials, starting with low-carbon lab-grown industrial diamonds.
Funding2 rounds · ~$813K
- Equity raised
- ~$813K
- Debt, secondaries & grants
- Undisclosed
- Latest
- ~$813KPre-Seed · Aug 18, 2026
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | Pre-Seed | ~$813K | — | Carbon13 | — | Reported |
| Mar 16, 2026 | Grant | Undisclosed | — | — | — | Reported |
- Pre-SeedLed by Carbon13~$813KAug 18, 2026
- GrantUndisclosedMar 16, 2026
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
People2
| Person | Role |
|---|---|
| Leonardo Santoni · LinkedIn ↗ | Chief Technology Officer |
| Mark Tandy · LinkedIn ↗ | Chief Executive Officer |
Sources7
Profile3
- 1
HexSeed Technology · Supports Organization · description, Organization · name, Organization · website
“HexSeed Technology transforms captured CO₂ into high-value supermaterials, starting with low-carbon lab-grown industrial diamonds.”
- 2
PitchBook · Supports Organization · founded year, Organization · linkedin url
“founded_year: 2025”
- 3
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "UK", "hq_iso2": "GB", "id": "f5cbdbd8-6119-454f-8a67-b2bae92e67fb"}”
Funding3
- 4
UKTN · Aug 21, 2026 · Supports Funding round
“has raised more than £600,000 in early-stage funding”
- 5
HexSeed Technology · Supports Funding round · amount, Organization · ownership
“HexSeed Technology has raised over £600k in early funding, led by Carbon13, with participation from Net Zero Technology Centre and Vento Ventures”
- 6
LinkedIn · Supports Funding round, Organization · employee range, Organization · linkedin url
“funding round: Grant, 2026-03-16, lead: TechX Accelerator”
People1
- 7
Crunchbase · Supports Organization · employee range, Organization · hq city, Organization · linkedin url, Role
“employee_range: 1-10 (profile: 1-10)”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.