OPEN HYDRO LTD
Company number 13833775 · Active · London WC2H 9JQ
OPEN HYDRO LTD is an active private limited company (company number 13833775) incorporated on 7 January 2022, registered in London. Its registered activity is engineering related scientific and technical consulting activities (SIC 71122). Latest micro accounts cover the period ending 31 March 2025, showing net assets of £167k, with 2 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 35% on the prior period (£255k).
By net assets it sits in the top quarter of 1,915 comparable companies in London (median £2,752, upper quartile £31k).
Key dates
- Incorporated
- 7 January 2022
- Next accounts due
- 31 December 2026 — in 73 days
- Confirmation statement due
- 21 January 2027 — in 94 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 71122
- Engineering related scientific and technical consulting activities
- SIC 74901
- Environmental consulting activities
- SIC 74909
- Other professional, scientific and technical activities n.e.c.
- Accounts type
- Micro Entity
- Size band
- Micro (Companies Act thresholds)
Financials — 2 periods on record, latest ending 31 March 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £167k | — | — | — | — | — | 2 |
| 31 March 2024 | £255k | — | — | — | — | — | 2 |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
Firmoscan score: 56/100 (grade C)
- +10 Positive net assets — Net assets £166,532 at 2025-03-31
- -8 Net assets falling — -34.7% vs prior period
- +4 Past first filings — Incorporated 2022-01-07
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice.
Ownership and control
- Ms Cristina Diez Santos — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors · since 7 January 2022
- Ms Maria Ubierna Aparicio — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors · since 7 January 2022
- Miss Anna Katherine Thomlinson — has significant influence or control · since 6 July 2022 · ceased 20 June 2023
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
Similar companies in London
Same activity (engineering related scientific and technical consulting activities), closest in incorporation date.
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- SIMPLE SYMMETRY LIMITED — London, inc. Jan 2022
- CAUSAL ANALYTICS LTD — London, inc. Jan 2022
- ANT DATA AND GRID DIGITALISATION SOLUTIONS LTD — London, inc. Jan 2022
- ENVIEW LTD — London, inc. Jan 2022
Reminders for OPEN HYDRO LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.