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Rock Mechanics Limited

09677385

active
ltd
england wales
Companies House
Health Score
80 / 100

Healthy

30/30
Filing
10/30
Financial
40/40
Risk

No risk factors detected.

Details

Brimstone House Lodge Lane, South Holmwood, Dorking, RH5 4NY
Incorporated 08/07/2015

Compliance

Last accounts

30/06/2025

dormant

Next accounts due

31/03/2027

On track

Confirmation statement

Last: 13/06/2026

Due 27/06/2027

On track

Industry

71122
Engineering related scientific and technical consulting activities

Officers

Mr James Robert Marsden

director · Since 08/07/2015

COMPANY DIRECTOR

ENGLISH · ENGLAND · Age 65

Also on 1 other board

Mrs Janette Frances Marsden

director · Since 08/07/2015

COMPANY DIRECTOR

ENGLISH · ENGLAND · Age 66

Also on 1 other board

James Robert Marsden

director · Since 08/07/2015

English · England · Age 65

Janette Frances Marsden

director · Since 08/07/2015

English · England · Age 66

Former

Ct Secretaries Limited

corporate secretary · Resigned 21/07/2016

James Robert Marsden

secretary · Resigned 15/08/2016

Persons with Significant Control

Mr James Robert Marsden

25–50% shares

English · England · Age 65

Brimstone House, Lodge Lane, Dorking, RH5 4NY

Notified 06/04/2016

Mrs Janette Frances Marsden

25–50% shares

English · England · Age 66

Brimstone House, Lodge Lane, Dorking, RH5 4NY

Notified 06/04/2016

Change History

statusactive
2026-07-20

Active

typeltd
2026-07-20

Private Limited Company

address line1Brimstone House Lodge Lane
2026-07-20

BRIMSTONE HOUSE LODGE LANE

post townDorking
2026-07-20

DORKING

CompanyRankvs 17706+ SIC 71122 peers
33

Financial strength29th percentile among SIC peers · 7/25
Employees0th percentile among SIC peers · 0/15
LiquidityNo balance sheet data · 0/20
Longevity11 years trading (max 15) · 11/15
Filing complianceAll filings up to date · 15/15
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How is this score calculated?
Financial strength7/25 pts

Net worth compared to all companies in the same SIC code with published accounts. Top quartile earns the full 25 points.

Employees0/15 pts

Workforce size relative to sector peers from the most recent accounts. A larger team generally signals commercial scale.

Liquidity0/20 pts

Current assets ÷ current liabilities. A ratio above 2× earns full marks; between 1–2× scores partially; below 0.5× scores minimal points.

Longevity11/15 pts

One point per year of operation since incorporation, capped at 15. Older companies have a proven track record.

Filing compliance15/15 pts

Full 15 points when both annual accounts and confirmation statement are filed on time. Points are deducted for each overdue filing.

Maximum score is 100. Deductions apply for insolvency history, outstanding charges, going concern doubt, or disqualified officers.

Key FinancialsYear ending 30/06/2025

Net Worth

£100

Balance sheet strength

Cash

Cash in the bank

Net Current Assets

Working capital

Current Assets

Current Liabilities

Prepared with Companies House