Active11605519Private limited companyHarrow

MMM511 LTD

D43/100

Owned by Mariya Krumova Stefanova (75–100%)

Companies HouseCompanies House
01

Summary

Generated from filed data · no estimates

MMM511 LTD is an active private limited company (company number 11605519) incorporated on 4 October 2018, registered in Harrow. Its registered activity is window cleaning services (SIC 81221). Latest small accounts cover the period ending 31 October 2025, showing net assets of −£15k and cash of £102, with 2 employees on average. Turnover was £88k and profit for the year −£2,782. Net assets fell 24% on the prior period (−£12k).

Peer position · net assets

By net assets it sits in the bottom quarter of 180 comparable companies in Greater London (median £969, upper quartile £11k).

02

Key dates

Incorporated
4 October 20188 yrs ago
Next accounts due
31 July 2027in 282 days
Confirmation statement due
18 October 2027in 361 days

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

03

Activity

SIC 81221
Window cleaning services
SIC 81299
Other cleaning services
Accounts type
Total Exemption Full
Size band
MicroCompanies Act thresholds
04

Financials

2 periods on record · latest ending 31 October 2025
Net assets
−£15k
vs Oct 2024
Cash at bank
£102
No changevs Oct 2024
Turnover
£88k
vs Oct 2024
Employees
2
+100%vs Oct 2024
Net assets
−£15k
Cash at bank
£102
Turnover
£88k
Profit for the year
−£2,782
Average employees
2
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 October 2025−£15k£102£16—£88k−£2,7822
31 October 2024−£12k£102£414—£0£01
Net margin-3.1%Profit for the year ÷ turnover
Cash per employee£51Cash ÷ average employees

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

05

Firmoscan score

Rules-based · every point shows its evidence
43 / 100 · grade D
EDCBA
Score breakdown
50Starting scoreEvery scored company starts here
−15Negative net assetsNet assets £-14,500 at 2025-10-31
+8EstablishedIncorporated 2018-10-04 (8 years)
43Score, grade D

A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice. How the score is computed.

06

Ownership and control

1 active
  • Mrs Mariya Krumova Stefanova
    Individual · since 4 October 2018
    • 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.

07

Timeline

Newest first
  1. Confirmation statement duein 361 days
  2. Next accounts duein 282 days
  3. Accounts period endNet liabilities £15k · small accounts
  4. Accounts period endNet liabilities £12k · small accounts
  5. Incorporated
08

Similar companies in Greater London

Same activity (window cleaning services), closest in incorporation date
09

Reminders for MMM511 LTD

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