Firmoscan
Active13055146Private limited companyFareham

IRIS MASTER HOLDCO LIMITED

Significant control: Basalt Infrastructure Partners LLP (significant control)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

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Registered activity: Other telecommunications activities (SIC 61900). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

IRIS MASTER HOLDCO LIMITED is an active private limited company (company number 13055146) incorporated on 1 December 2020, registered in Fareham. Its registered activity is other telecommunications activities (SIC 61900). Accounts are on file at Companies House (total exemption full) but not yet parsed into this record.

There are 103 companies in other telecommunications activities in Portsmouth with filed accounts; the median reports net assets of £2,740 and is 12 years old.

02

Ownership and control

1 active · 2 other
  • Basalt Infrastructure Partners Llp
    corporate entity, United Kingdom · since 1 December 2020
    • has significant influence or control
  • Basalt Infrastructure Partners Iii Gp Limited
    corporate entity, Guernsey · since 1 December 2020 · ceased 31 January 2025
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors
  • persons with significant control statement · since 31 January 2025 · ceased 31 January 2025

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
1 December 20205 yrs ago
First accounts due
1 September 20221517 days overdue
Confirmation statement due
15 December 2026in 49 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 61900
Other telecommunications activities
Accounts type
Total Exemption Full
05

Financials

No accounts on record

Accounts exist on the register but their figures are not in this dataset yet.

06

Filing and accounts signals

Facts from the register · no rating
  • Incorporated five or more years agoIncorporated 1 December 2020
  • Accounts past their due dateDue 1 September 2022

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

07

Timeline

Newest first
  1. Confirmation statement duein 49 days
  2. First accounts due1517 days overdue
  3. Incorporated
08

Similar companies in Portsmouth

Same activity (other telecommunications activities), closest in incorporation date

All companies incorporated on 1 December 2020 · in Dec 2020.

09

Reminders for IRIS MASTER HOLDCO LIMITED

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.