IRIS INFRA MASTER HOLDCO LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-11-14 (in 6mo)
Last made up 2025-10-31
Watchouts
Cash
£10M
+20.2% vs 2023
Net assets
-£132M
-66.3% lowest in 4 filed years
Employees
298
-27.7% vs 2023
Profit before tax
-£52M
-12.9% vs 2023
Watchouts
Facts from the Companies House register and the latest accounts — not a rating
-
Material uncertainty over going concern
The Group operates as a holding company, and consequently, the assessment of the Group's going concern is contingent upon the future trading capabilities of its subsidiaries. As of 31 December, the Group reported a loss of £53.4 million (2023: £46.5 million) and net liabilities amounting to £132.6 million (2023: £79.2 million), attributed to losses incurred that align with the current financial plan. Short to medium term funding for the business is reliant on the continued support of the group's shareholders, who have continued to fund the business throughout 2025, in accordance with the financial plan and have committed to support funding for the business through 2026 and 2027. Shareholders have already provided additional funding post-year-end and have expressed their intention to continue providing financial support. Consequently, the Directors conclude that, whilst there remains a reliance on continued shareholder support to finance business operations in the medium term, it is appropriate to adopt the going concern basis in preparing the financial statements for the period ending 31 December 2024.
Net assets
5-year trend · vs Telecommunications median
Accounts
5-year trend · latest reflected 2024-12-31
| Metric | Trend | 2020-11-30 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|
| Turnover | — | — | — | £1,403,195 | £5,148,960 | |
| Operating profit | — | — | — | -£31,070,751 | -£31,804,118 | |
| Profit before tax | — | — | — | -£46,477,006 | -£52,489,859 | |
| Net profit | — | — | -£12,246,137 | -£46,477,006 | -£52,489,859 | |
| Cash | — | — | — | £8,318,734 | £10,003,108 | |
| Total assets less current liabilities | — | £36,050 | £50,051 | £158,865,858 | £169,027,582 | |
| Net assets | — | £36,050 | £50,051 | -£79,166,614 | -£131,656,473 | |
| Equity | — | £36,050 | £50,051 | -£79,166,614 | -£131,656,473 | |
| Average employees | 0 | 0 | 0 | 412 | 298 | |
| Wages | — | — | — | £15,069,271 | £16,028,417 | |
| Directors' remuneration | — | — | — | £504,531 | £263,180 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
+266.9%
£1,403,195 £5,148,960
-
Cash
+20.2%
£8,318,734 £10,003,108
-
Net assets
-66.3%
-£79,166,614 -£131,656,473
lowest in 4 filed years
-
Employees
-27.7%
412 298
-
Operating profit
-2.4%
-£31,070,751 -£31,804,118
-
Profit before tax
-12.9%
-£46,477,006 -£52,489,859
-
Wages
+6.4%
£15,069,271 £16,028,417
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2020-11-30 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|
| Operating margin | — | — | — | -2214.3% | -617.7% | |
| Net margin | — | — | — | -3312.2% | -1019.4% | |
| Return on capital employed | — | — | — | -19.6% | -18.8% | |
| Current ratio | — | — | — | 1.51x | 2.14x | |
| Interest cover | — | — | — | -1.99x | -1.53x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 1 time since incorporation
- IRIS INFRA MASTER HOLDCO LIMITED 2023-08-18 → present
- FULL FIBRE MASTER HOLDCO LIMITED 2020-12-01 → 2023-08-18
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Consolidated group
- Auditor
- Bishop Fleming Audit Limited
- Audit opinion
- Unqualified (clean)
- Going concern
- Material uncertainty disclosed
“The Group operates as a holding company, and consequently, the assessment of the Group's going concern is contingent upon the future trading capabilities of its subsidiaries. As of 31 December, the Group reported a loss of £53.4 million (2023: £46.5 million) and net liabilities amounting to £132.6 million (2023: £79.2 million), attributed to losses incurred that align with the current financial plan. Short to medium term funding for the business is reliant on the continued support of the group's shareholders, who have continued to fund the business throughout 2025, in accordance with the financial plan and have committed to support funding for the business through 2026 and 2027. Shareholders have already provided additional funding post-year-end and have expressed their intention to continue providing financial support. Consequently, the Directors conclude that, whilst there remains a reliance on continued shareholder support to finance business operations in the medium term, it is appropriate to adopt the going concern basis in preparing the financial statements for the period ending 31 December 2024.”
Group structure
- IRIS INFRA MASTER HOLDCO LIMITED · parent
- Iris Infra Holdco Limited 100%
- Full Fibre Limited 100%
- Iris Infra Limited 100%
- Digital Master Holdco Limited 100%
- Digital Holdings Limited 100%
- Digital Infrastructure Services Limited 100%
- Digital Infrastructure Limited 100%
- BeFibre Limited 100%
Significant events
- “In January 2025 the Group announced a merger with the Zzoomm Group of companies, which completed in March 2025 following regulatory approval.”
- “As at 27 January 2025 the transaction had completed with the creation of a new intermediate parent company Altnet Partners Limited, owned 71% by Iris Infra Holdco Limited and 29% by Zzoomm Group Limited.”
- “In March 2025 Iris Infra Limited group of companies announced a merger with Zzoomm group of companies, creating a new parent Company, Altnet Partners Holdco Limited”
- “During 2025, £18,750,000 of cash was injected to the new enlarged Group. Iris Infra Holdco Limited issued £13,458,869 of unsecured loan notes as part of this cash injection.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
6 active · 5 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| SMITH, Julian | Secretary | 2025-03-07 | — | — |
| BARRIENTOS OSSIO, Marianna | Director | 2025-03-07 | Mar 1984 | British |
| DOYLE, Paul | Director | 2020-12-01 | Jan 1964 | Irish |
| LOWRY, Steven | Director | 2020-12-01 | Nov 1972 | British |
| MARTINEZ SANCHEZ, Frank | Director | 2023-09-26 | Sep 1972 | Spanish |
| WARNER, James Stephen | Director | 2024-02-29 | Feb 1988 | British |
Show 5 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| PLAHAY, Kulvinder Singh | Secretary | 2023-01-23 | 2025-03-07 |
| BOCK MONTERO, Carlos | Director | 2023-09-26 | 2024-09-06 |
| HELM, Oliver Dieter | Director | 2021-01-08 | 2024-02-29 |
| JONES, Wil | Director | 2020-12-01 | 2025-03-07 |
| WARNER, James Stephen | Director | 2021-01-08 | 2023-09-26 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Iris Holdco Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2020-12-01 | Active |
Filing timeline
Last 20 of 60 total filings
Material constitutional events — rename, articles re-file, resolution
- 2026-04-25 RESOLUTIONS Resolution
- 2026-03-21 RESOLUTIONS Resolution
- 2026-02-09 RESOLUTIONS Resolution
- 2026-02-02 RESOLUTIONS Resolution
- 2025-09-30 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-27 | SH01 | capital | Capital allotment shares | |
| 2026-04-25 | RESOLUTIONS | resolution | Resolution | |
| 2026-03-23 | SH01 | capital | Capital allotment shares | |
| 2026-03-21 | RESOLUTIONS | resolution | Resolution | |
| 2026-02-09 | SH01 | capital | Capital allotment shares | |
| 2026-02-09 | RESOLUTIONS | resolution | Resolution | |
| 2026-02-02 | RESOLUTIONS | resolution | Resolution | |
| 2026-01-26 | SH01 | capital | Capital allotment shares | |
| 2025-12-15 | SH01 | capital | Capital allotment shares | |
| 2025-12-04 | SH01 | capital | Capital allotment shares | |
| 2025-11-17 | SH01 | capital | Capital allotment shares | |
| 2025-11-13 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-09-30 | RESOLUTIONS | resolution | Resolution | |
| 2025-09-26 | SH01 | capital | Capital allotment shares | |
| 2025-08-08 | AA | accounts | Accounts with accounts type group | |
| 2025-08-05 | SH01 | capital | Capital allotment shares | |
| 2025-08-04 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-08-04 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-04-23 | AP03 | officers | Appoint person secretary company with name date | |
| 2025-04-22 | AP01 | officers | Appoint person director company with name date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 18
- Capital events
- 9
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.