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CST Instruments Limited

ActiveCompany number 08033783Private limited companyEst. 201272190 · Other research and experimental development on natural sciences and engineeringLetchworth, East of England
Official record ↗
Age14 years
older than 71% of its sector
Same activity, United Kingdom6,027live companies · 1773rd oldest
In Letchworth2,801live companies · 5 in the same activity
At this address11live companies incl. this one
Latest accounts2025micro-entity accounts, made up to 30 Apr 2025

In brief

CST Instruments Limited is a private limited company incorporated in England and Wales on 17 April 2012. At 14 years old it is older than 71% of the 6,027 live companies whose main activity is other research and experimental development on natural sciences and engineering. Its registered office is in Letchworth, North Hertfordshire, East of England, at an address shared with 10 other live companies. 5 live companies in Letchworth share the same main activity. Its latest accounts were made up to 30 April 2025 and filed as micro-entity accounts. It was previously called Concrete Smart Test Limited, a name it changed on 10 March 2021, and has had 3 earlier names in all.

Register details

Registered nameCST INSTRUMENTS LIMITED
Company number08033783
Company typePrivate Limited Company
Registered office5 Leys Avenue, SG6 3EA Letchworth Garden City
JurisdictionEngland and Wales
Nature of business (UK SIC 2007)72190 Other research and experimental development on natural sciences and engineering
International sector (ISIC Rev.4)M · 72 Scientific research and development

Timeline

Register events, newest first.

  • Confirmation statement made up
  • Accounts made upMicro-entity accounts
  • Name changedPreviously Concrete Smart Test Limited
  • Name changedPreviously CST Instruments Limited
  • Name changedPreviously Concrete Smart Test Limited
  • Incorporated

Filings and charges

Deadlines and charge counts from the register.

Next accounts due31 January 2027
Accounting reference date30 April
Next confirmation statement25 February 2027
Last confirmation statement11 February 2026
Charges registered0
Outstanding · satisfied0 · 0

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

Other research and experimental development on natural sciences and engineering in the United Kingdom

Live companies whose main activity is 72190: 6,027 in total, median age 7 years, 758 incorporated in the past 12 months.

All 6,027 companies
This company's decadeOther decades
01,0002,0003,0004,0001880s: 11880s1890s: 11890s1910s: 21910s1930s: 31930s1940s: 21940s1950s: 131950s1960s: 171960s1970s: 271970s1980s: 1171980s1990s: 2981990s2000s: 9512000s2010s: 1,7832010s2020s: 2,8122020s
Incorporated per year, still live
02004006008002011: 14620112012: 1332013: 15120132014: 1872015: 19320152016: 1822017: 19020172018: 2252019: 22420192020: 2732021: 28020212022: 2562023: 33720232024: 4152025: 63120252026: 620

Location

Registered office in Letchworth, North Hertfordshire, East of England.

Letchworth
Live companies in Letchworth2,801
Same activity in Letchworth5
Live companies in North Hertfordshire11,431
New in Letchworth, past 12 months257

Also registered at this address

10 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.

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3A3P LimitedLetchworth, East of England
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MP
Mason Pharma Services Ltd.Hitchin, East of England
Number 09884090Est. 2015
CC
Cambourne Consulting LtdHitchin, East of England
Number 10111598Est. 2016
SO
Sustainable Opportunities LimitedPirton, East of England
Number 06202423Est. 2007
R
Rgdscience LtdHitchin, East of England
Number 12108783Est. 2019

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.