ActiveSC200789Private limited companyIsle Of Lewis

CALMAX CONSTRUCTION LIMITED

A85/100

Owned by Donald Mackay (75–100%)

Companies HouseCompanies House
01

Summary

Generated from filed data · no estimates

CALMAX CONSTRUCTION LIMITED is an active private limited company (company number SC200789) incorporated on 18 October 1999, registered in Isle Of Lewis. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest small accounts cover the period ending 31 October 2025, showing net assets of £1.54m and cash of £644k, with 70 employees on average. Net assets rose 17% on the prior period (£1.32m). Across the last 3 periods on record the net-asset trend is rising.

Peer position · net assets

By net assets it sits in the top quarter of 6,076 comparable companies in Other (median £7,848, upper quartile £60k).

02

Key dates

Incorporated
18 October 199927 yrs ago
Next accounts due
31 July 2027in 282 days
Confirmation statement due
1 November 2026in 10 days

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

03

Activity

SIC 43999
Other specialised construction activities n.e.c.
Accounts type
Total Exemption Full
Size band
SmallCompanies Act thresholds
04

Financials

3 periods on record · latest ending 31 October 2025
Net assets
£1.54m
+17%vs Oct 2024
Cash at bank
£644k
+81%vs Oct 2024
Turnover
Not reported
Employees
70
+15%vs Oct 2024
Net assets
£1.54m
Cash at bank
£644k
Average employees
70
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 October 2025£1.54m£644k£1.06m———70
31 October 2024£1.32m£355k£1.34m———61
31 October 2023£1.19m£272k£1.49m———62
Cash per employee£9,195Cash ÷ 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
85 / 100 · grade A
EDCBA
Score breakdown
50Starting scoreEvery scored company starts here
+10Positive net assetsNet assets £1,540,210 at 2025-10-31
+8Net assets growing+16.8% vs prior period
+4Cash reservesCash £643,621
+5Multi-year filing history3 periods on record
+8EstablishedIncorporated 1999-10-18 (27 years)
85Score, grade A

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 · 3 other
  • Mr Donald Mackay
    Individual · since 20 December 2021
    • owns 75–100% of shares
    • holds 75–100% of voting rights
  • Mrs Christeen Mackay
    Individual · since 6 April 2016 · ceased 7 October 2021
    • owns 25–50% of shares
    • holds 25–50% of voting rights
  • Mr Calum Ian Alistair Mackay
    Individual · since 6 April 2016 · ceased 1 April 2026
    • owns 50–75% of shares
    • holds 50–75% of voting rights
  • The Executor Of The Late Mrs Christeen Mackay
    corporate entity · since 7 October 2021 · ceased 31 March 2023
    • owns 25–50% of shares
    • holds 25–50% of voting rights

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. Next accounts duein 282 days
  2. Confirmation statement duein 10 days
  3. Accounts period endNet assets £1.54m · small accounts
  4. Accounts period endNet assets £1.32m · small accounts
  5. Accounts period endNet assets £1.19m · small accounts
  6. Incorporated
08

Similar companies in the UK

Same activity (other specialised construction activities n.e.c.), closest in incorporation date
09

Reminders for CALMAX CONSTRUCTION LIMITED

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