Firmoscan
Active16611030Private limited companyLondon

CONSTANTIN MAINSOLUTION LTD

Significant control: Constantin Roman (75–100%)

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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Constantin Mainsolution Ltd sell?

Registered activity: Other specialised construction activities n.e.c. (SIC 43999). 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

CONSTANTIN MAINSOLUTION LTD is an active private limited company (company number 16611030) incorporated on 29 July 2025, registered in London. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest small accounts cover the period ending 31 July 2026, showing net assets of £63k and cash of £93k, with 2 employees on average.

Peer position · net assets

By net assets it sits in the top quarter of 3,480 comparable companies in London (median £3,158, upper quartile £26k).

02

Ownership and control

1 active
  • Mr Constantin Roman
    Individual · since 29 July 2025
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors

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
29 July 20251 yr ago
Next accounts due
30 April 2028in 555 days
Confirmation statement due
12 August 2027in 293 days

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

04

Activity

SIC 43999
Other specialised construction activities n.e.c.
SIC 81300
Landscape service activities
Accounts type
Total Exemption Full
Size band
MicroCompanies Act thresholds
05

Financials

1 period on record · latest ending 31 July 2026
Net assets
£63k
1 period on record
Cash at bank
£93k
1 period on record
Turnover
Not reported
Employees
2
1 period on record
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 July 2026£63k£93k————2
Cash per employee£47kCash ÷ average employees

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.

06

Filing and accounts signals

Facts from the register · no rating
  • Net assets above zeroNet assets £63,147 at 31 July 2026
  • Cash at bank of £50,000 or moreCash £93,273
  • Incorporated less than two years agoIncorporated 29 July 2025; no accounts due yet

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. Next accounts duein 555 days
  2. Confirmation statement duein 293 days
  3. Accounts period endNet assets £63k · small accounts
  4. Incorporated
08

Similar companies in London

Same activity (other specialised construction activities n.e.c.), closest in incorporation date

All companies incorporated on 29 July 2025 · in Jul 2025.

09

Reminders for CONSTANTIN MAINSOLUTION LTD

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

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.

This information comes from public filings and our automated processing of them. It may contain errors, be incomplete or be out of date, and is not advice or a credit reference. Check the official record before relying on it. Terms · Privacy · Report an error (corrected within one working day).