12413888 · Active · incorporated 6 years, 9 months ago · Middlesbrough
Fintech B2B Climate & Sustainability Platform SaaS Series A
Climate Solutions Exchange Ltd, trading as CSX Carbon, is a technology business focused on democratizing voluntary carbon markets through accurate measurement and trading platforms.
Csx Carbon is a private limited company registered at Companies House under number 12413888, incorporated on 20 January 2020, with a registered office in Middlesbrough. Its current status on the register is active. Its filed nature of business covers support activities for animal production (other than farm animal boarding and care) n.e.c. (SIC 01629), business and domestic software development (SIC 62012) and other research and experimental development on natural sciences and engineering (SIC 72190). Sonde has indexed 57 filings for this company, including 4 funding rounds. Its most recent round closed in March 2026, raising £433k.
| Round | Closed | Raised | Price per share |
|---|---|---|---|
| Round 4 | Mar 2026 | £433k | £37.77 |
| Round 3 | Sep 2022 | £2.5m | £503.46 |
| Round 2 | Sep 2021 | £500k | £314.86 |
| Round 1 | Dec 2020 | £125k | £112.41 |
Climate Solutions Exchange Limited has been offered £205k in grant funding across 2 Innovate UK projects starting between 2020 and 2022, mainly Collaborative R&D.
Source: Innovate UK funded projects (UKRI open data). Amounts are offers, not payments.
Showing the 10 most recent of 57 filings.
See the complete cap table with every shareholder, founder tags, dilution across 9 share allotments, round-by-round fundraising history, and the full filing timeline — parsed from official Companies House documents.
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