SIC code 71122
Engineering related scientific and technical consulting activities
There are about 34,500 active UK companies registered under SIC code 71122 (Engineering related scientific and technical consulting activities), as of October 2026.
Live figures, the full list, more filters, and CSV export.
On the register
Share of these companies on the live register, by status.
- Active 86%
- Proposal to strike off 13%
- In insolvency or administration 1%
New registrations
Companies registered each month, October 2025 – September 2026, that are still on the register. See registrations by month across all companies.
Show the figures
| Month | Companies |
|---|---|
| October 2025 | 596 |
| November 2025 | 424 |
| December 2025 | 438 |
| January 2026 | 547 |
| February 2026 | 503 |
| March 2026 | 619 |
| April 2026 | 546 |
| May 2026 | 545 |
| June 2026 | 521 |
| July 2026 | 602 |
| August 2026 | 521 |
| September 2026 | 598 |
Company age
How long the active companies have been registered.
- Under 1 year 18%
- 1–3 years 22%
- 3–5 years 15%
- 5–10 years 25%
- 10–20 years 13%
- 20 years or more 6%
Where they're registered
Active companies by postcode area of their registered office.
- West Central London (WC) 1,620
- East Central London (EC) 1,480
- West London (W) 1,000
- North London (N) 956
- Aberdeen (AB) 911
- Birmingham (B) 709
- Bristol (BS) 695
- Coventry (CV) 675
- Glasgow (G) 626
- Manchester (M) 580
Note: Location figures use the registered office address from Companies House. Many companies register at an accountant's or formation agent's address, which may differ from where they trade.
Recently registered companies
Active companies recently registered under SIC code 71122.
| Company | Number | Registered | Town |
|---|---|---|---|
| WHEATS WELDING & FABRICATION LTD | 17496775 | 2 Oct 2026 | London |
| SHEM AND SHEM WATER LTD | 17496754 | 2 Oct 2026 | Bury St. Edmunds |
| PROPCHECKS CONSULTANCY LIMITED | 17496652 | 2 Oct 2026 | London |
| CYMETRIC CONSULTING LTD | 17496549 | 2 Oct 2026 | Nottingham |
| ALDA MARINE CONSULTING LTD | SC904723 | 2 Oct 2026 | Westhill |
| STULOS LTD | 17496143 | 2 Oct 2026 | Moreton-In-Marsh |
| AG TECHNICAL ADVISORY LTD | 17496125 | 2 Oct 2026 | London |
| MAIDEN BROOKS ASSOCIATES LTD | 17496012 | 2 Oct 2026 | Folkestone |
| SENTRY GROUP LTD | 17495905 | 2 Oct 2026 | London |
| UNITED BIONICS LTD | 17495900 | 2 Oct 2026 | London |
Related
- Part of the Professional Services industry group.
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Other professional services SIC codes:
- 70229 – Management consultancy activities other than financial management (270,000)
- 69201 – Accounting and auditing activities (43,200)
- 71129 – Other engineering activities (37,700)
- 70100 – Activities of head offices (30,100)
- 69202 – Bookkeeping activities (24,500)
- 70221 – Financial management (21,400)
- 71111 – Architectural activities (20,400)
- 70210 – Public relations and communications activities (15,600)
- All SIC codes
- SIC codes explained
- New Company Registrations
- New / Updated Officers
- Charges / Mortgages
- Officer Disqualifications
- Accounts (Assets)
- Insolvency Filings
- Company Officer Resignations
- Existing Company Changes
- In Liquidation
Data as of .