opendata.bot
Company number
01577030

RHOMBUS SYSTEMS LIMITED

Active
✓ Active company on the official register. Next accounts due 30 September 2027.

Company details

East of England, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
RHOMBUS SYSTEMS LIMITED
Company number
01577030
Registered office
SUMPTER HOUSE, 8 STATION ROAD, HISTON, CAMBRIDGE, CAMBRIDGESHIRE, CB24 9LQ · 16 other companies at this postcode
Company type
Private Limited Company
Incorporated on
28 July 1981
Status
Active
Age
45 years
Nature of business (SIC)
26200 — Manufacture of computers and peripheral equipment · 26511 — Manufacture of electronic measuring, testing etc. equipment, not for industrial process control · 62012 — Business and domestic software development
Accounts — next due
30 Sept 2027
Accounts — last made up to
31 Dec 2025
Confirmation statement — next due
14 Jan 2027
Confirmation statement — last
31 Dec 2025

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Mr Adam Timothy Cearns
owns 25–50% of shares
Notified 31/12/2016
Mr David Richard Howlett Hartley
owns 50–75% of shares
Notified 31/12/2016

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Mr Adam Timothy Cearns
born 09/1957 · England owns 25–50% of shares Notified 31/12/2016
Mr David Richard Howlett Hartley
born 05/1958 · England owns 50–75% of shares Notified 31/12/2016

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
31/12/2016 Person with significant control added Mr David Richard Howlett Hartley
31/12/2016 Person with significant control added Mr Adam Timothy Cearns

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2025FY2024
Total assets less current liabilities 302
▲ 1.5%
297
Net assets 302
▲ 1.5%
297
Employees (avg) 5
▲ 25.0%
4

Documents for RHOMBUS SYSTEMS LIMITED

Need this one company on file? Buy the document on its own — no plan required.

Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Data protection register

No entry found on the ICO register of fee payers under this name.

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Get this company via API

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GET /v1/company/gb/01577030
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of RHOMBUS SYSTEMS LIMITED?
According to the official registry, the company number of RHOMBUS SYSTEMS LIMITED is 01577030.
Where is RHOMBUS SYSTEMS LIMITED registered?
The registered office is SUMPTER HOUSE, 8 STATION ROAD, HISTON, CAMBRIDGE, CAMBRIDGESHIRE, CB24 9LQ.
What is the SIC code of RHOMBUS SYSTEMS LIMITED?
The nature of business is recorded under SIC code 26200 — Manufacture of computers and peripheral equipment, 26511 — Manufacture of electronic measuring, testing etc. equipment, not for industrial process control, 62012 — Business and domestic software development.
Who controls RHOMBUS SYSTEMS LIMITED?
Mr Adam Timothy Cearns is recorded as a person with significant control, and owns 25–50% of shares.
When are the next accounts of RHOMBUS SYSTEMS LIMITED due?
The next annual accounts are due by 30 September 2027, and the last accounts were made up to 31 December 2025.

About RHOMBUS SYSTEMS LIMITED (01577030)

RHOMBUS SYSTEMS LIMITED is a private limited company incorporated on 28 July 1981 and registered in the United Kingdom under company number 01577030. Its registered office is at SUMPTER HOUSE, 8 STATION ROAD, HISTON, CAMBRIDGE, CAMBRIDGESHIRE, CB24 9LQ. The recorded nature of business is manufacture of computers and peripheral equipment (SIC 26200). The company is currently active , with statutory accounts last made up to 31 December 2025. , and the person with significant control is Mr Adam Timothy Cearns. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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