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Interlock Computer Systems Limited

ActiveCompany number 01905256Private limited companyEst. 198562020 · Information technology consultancy activitiesCity of Westminster, London
Official record ↗
Age41 years
older than 99% of its sector
Same activity, United Kingdom129,365live companies · 310th oldest
In City of Westminster163,540live companies · 3,703 in the same activity
At this address928live companies incl. this one
Latest accounts2025micro-entity accounts, made up to 31 Mar 2025

In brief

Interlock Computer Systems Limited is a private limited company incorporated in England and Wales on 16 April 1985. At 41 years old it is older than 99% of the 129,365 live companies whose main activity is information technology consultancy activities. Its registered office is in City of Westminster, Westminster, London, at an address shared with 927 other live companies. 3,703 live companies in City of Westminster share the same main activity. Its latest accounts were made up to 31 March 2025 and filed as micro-entity accounts.

Register details

Registered nameINTERLOCK COMPUTER SYSTEMS LIMITED
Company number01905256
Company typePrivate Limited Company
Registered office5TH Floor, 167-169 Great Portland Street, W1W 5PF London
JurisdictionEngland and Wales
Nature of business (UK SIC 2007)62020 Information technology consultancy activities
International sector (ISIC Rev.4)J · 62 Computer programming, consultancy and related activities

Timeline

Register events, newest first.

  • Confirmation statement made up
  • Accounts made upMicro-entity accounts
  • Incorporated

Filings and charges

Deadlines and charge counts from the register.

Next accounts due31 December 2026
Accounting reference date31 March
Next confirmation statement11 March 2027
Last confirmation statement25 February 2026
Charges registered0
Outstanding · satisfied0 · 0

Charges are security interests (such as mortgages) registered against the company.

Information technology consultancy activities in the United Kingdom

Live companies whose main activity is 62020: 129,365 in total, median age 6 years, 15,913 incorporated in the past 12 months.

All 129,365 companies
This company's decadeOther decades
020,00040,00060,00080,0001890s: 11890s1900s: 11900s1910s: 11910s1930s: 31930s1940s: 11940s1950s: 41950s1960s: 141960s1970s: 731970s1980s: 7191980s1990s: 3,7721990s2000s: 11,6142000s2010s: 46,9242010s2020s: 66,2382020s
Incorporated per year, still live
05,00010,00015,00020,0002011: 3,02120112012: 3,3392013: 3,97520132014: 4,8682015: 5,43820152016: 5,3942017: 5,21520172018: 6,5282019: 6,66520192020: 5,0242021: 5,42820212022: 7,1992023: 8,84620232024: 10,5992025: 16,46120252026: 12,681

Location

Registered office in City of Westminster, Westminster, London.

City of Westminster
Live companies in City of Westminster163,540
Same activity in City of Westminster3,703
Live companies in Westminster164,765
New in City of Westminster, past 12 months19,587

Also registered at this address

927 other live companies share this registered office; shown are those incorporated closest in time to this one.

Similar companies

Live companies with the same main activity, nearest first.

Compare all
OC
O.C.S. Consulting plcCity of Westminster, London
Number 01894212Est. 1985
S
Synapse LimitedCity of Westminster, London
Number 02053650Est. 1986
S
Syspro UK LimitedCity of Westminster, London
Number 01748035Est. 1983
LS
Lothbury Software LimitedCity of Westminster, London
Number 01743891Est. 1983
CM
Crealogix Mba LimitedCity of Westminster, London
Number 02105579Est. 1987
MI
Medical Information Technology UK LtdCity of Westminster, London
Number 02220263Est. 1988

Sources

Register data: Companies House, Free Company Data Product, delivery of 1 October 2026. Places: ONS Postcode Directory (Open Government Licence v3.0). Sector names: Eurostat NACE Rev. 2. Context figures are computed by FirmsDB from these sources. This page is not an official register; check the official record before relying on it.