JAM STRUCTURAL DESIGN LTD.

Company number 11659389 · Active · Sheffield S1 4FS

C
Firmoscan score 63/100

JAM STRUCTURAL DESIGN LTD. is an active private limited company (company number 11659389) incorporated on 5 November 2018, registered in Sheffield. Its registered activity is other engineering activities (SIC 71129). Latest micro accounts cover the period ending 30 November 2025, with 5 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public.

There are 560 companies in other engineering activities in Sheffield with filed accounts; the median reports net assets of £6,078 and is 7 years old.

Key dates

Incorporated
5 November 2018
Next accounts due
30 August 2027 — in 316 days
Confirmation statement due
19 November 2026 — in 32 days

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

Activity

SIC 71129
Other engineering activities
Accounts type
Micro Entity
Size band
Micro (Companies Act thresholds)

Financials — 3 periods on record, latest ending 30 November 2025

Average employees
Average employeesNov 2023: 5; Nov 2024: 5; Nov 2025: 5555Nov 2023Nov 2024Nov 2025
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
30 November 2025———£31k——5
30 November 2024———£25k——5
30 November 2023———£25k——5
Current ratio
1.08

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.

Firmoscan score: 63/100 (grade C)

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

Ownership and control

  • Mr Paul Testa — owns 25–50% of shares; holds 25–50% of voting rights · since 5 November 2018
  • Mr Alan Stewart Macdonald — owns 25–50% of shares; holds 25–50% of voting rights · since 5 November 2018
  • Chris Jarvis — owns 25–50% of shares; holds 25–50% of voting rights · since 18 March 2024
  • Mr Jonathan Francis Carr — owns 25–50% of shares; holds 25–50% of voting rights · since 30 September 2021 · ceased 30 January 2023

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

Similar companies in Sheffield

Same activity (other engineering activities), closest in incorporation date.

Reminders for JAM STRUCTURAL DESIGN LTD.

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