SIC 80300 Section N — Administrative and Support Service Activities

Investigation activities

1,958 active UK companies registered under this classification.

SIC Code 80300 (Investigation activities) is a UK Standard Industrial Classification code used by Companies House to categorise business activities. Companies registered under this code operate in the Investigation activities sector, which falls under Section N (Administrative and Support Service Activities) of the SIC 2007 framework. There are currently 1,958 active companies and 2,039 total registrations under this classification.

1,958 Active Companies
2,039 Total Registered
40 New in 2026
London Top Location

Investigation activities Companies

Showing 1–25 of 2,039 companies.

L

10994 LTD 09151111

● Active Edenhall Est. 2014
L

1331 LIMITED 14866309

● Active London Est. 2023
FS

1ST FIRE SAFETY LIMITED 09054330

● Active Tenbury Wells Est. 2014
AC

2-1-3 (GLOBAL)INVESTIGATIONS AND CONSULTANCY LTD 13957860

● Active BARNARD CASTLE Est. 2022
CI

2020 CYBER INVESTIGATIONS LIMITED 12412816

● Active HARPENDEN Est. 2020
L

247GROUPHQ LIMITED 15809070

● Active Nantwich Est. 2024
RA

255 RESEARCH AND INVESTIGATION LTD 08342725

● Active Streatham Est. 2012
SP

2ND SIGHT PARANORMAL LTD 16257166

● Active AYLESBURY Est. 2025
PL

3 PILLARS LIMITED 09853812

● Active London Est. 2015
L

360INTELLIMATION LTD 07142145

● Active Whyteleafe Est. 2010
IL

3A INVESTMENT (INTERNATIONAL) LTD 13461421

● Active LONDON Est. 2021
GL

3E GLOBAL LTD 09049429

● Active Sleaford Est. 2014
L

4RIIS LTD 16559303

● Active GLOUCESTER Est. 2025
IL

57 INVESTIGATIONS LIMITED 10614295

● Active Shipley Est. 2017
VT

5D VIRTUAL TELEMARKETING LTD. 13312288

● Active LONDON Est. 2021
BK

7 BLACK KNIGHTS LIMITED 08362251

● Active London Est. 2013
BL

777 BLUE LIONS LTD 13280196

● Active Wembley Est. 2021
L

9-INTELLIGENCE LIMITED 16658416

● Active LONDON Est. 2025
AN

A & N FIDUCIARY LTD 07425540

● Active Nottingham Est. 2010
AB

A B BROWN LIMITED SC654658

● Active Edinburgh Est. 2020
AF

A FORENSICS LIMITED 07973533

● Active Liverpool Est. 2012
AH

A H JONES INVESTIGATORS LIMITED 08343868

● Active Newton Abbot Est. 2013
AP

A PROBLEM SOLVED LTD 12439957

● Active LONDON Est. 2020
AB

A. BHAGAT LIMITED 08868613

● Active Leicester Est. 2014
AL

A.F.I. LIMITED 02521020

● Active NORTHUMBERLAND Est. 1990

Frequently Asked Questions

What is SIC code 80300?

SIC code 80300 represents "Investigation activities" in the UK Standard Industrial Classification (SIC) 2007 system. It is used by Companies House to categorise the primary business activity of registered UK companies. It falls under Section N — Administrative and Support Service Activities.

How many UK companies are classified under SIC 80300?

There are currently 1,958 active UK companies registered under SIC code 80300 (Investigation activities), out of 2,039 total registrations.

Where are most Investigation activities companies based in the UK?

The top locations for Investigation activities companies in the UK are London, CARDIFF, Birmingham, MANCHESTER, GLASGOW. London typically leads in company registrations across most sectors.

How do I find a specific Investigation activities company?

You can browse all companies on this page, or use CompanyPulse's search at companypulse.co.uk/search to find a specific company by name or company number. Each company profile includes directors, financial data, risk analysis, and filing history.

How many new Investigation activities companies were incorporated in 2026?

40 new companies were registered under SIC code 80300 in 2026. CompanyPulse tracks all new UK incorporations in real time via the Companies House data stream.