Testing, inspection and certification firms to acquire in the North West
Updated 9 November 2026
Looking to acquire a testing, inspection or certification firm in the North West? Firmbase ranks 94 testing, inspection and certification firms using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.
The median firm has 9 staff and has been in business for 19 years; 11 firms are owned by groups that have acquired several firms in this sector. Looking beyond the North West? Explore the full UK list of testing, inspection and certification firms.
94
Firms
UK 751
43%
Every director 55+
UK 28%
30%
Held 75%+ by one person
UK 23%
19
Median years in business
UK 16
9
Median headcount
UK 10
£500k to £1m
Median turnover band
UK £500k to £1m · includes our estimates
11 firms owned by 1 group that has bought several firms in this sector. That is 12% of this list, against 1% across the UK.
Towns with the most firms
- Manchester 32 firms
- Liverpool 15 firms
The first 25 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Retrofit Solutions Warrington, Cheshire | Approach Score 91/100 |
More about this firm
Company no. 04121692 · Companies House |
| 2 | Reliability Maintenance Solutions Warrington, Cheshire | Approach Score 83/100 |
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Company no. 03808313 · Companies House |
| 3 | Global Surveys Hyde | Approach Score 80/100 |
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Company no. 07720856 · Companies House |
| 4 | Precise Calibration Wigan A director sits on 4 or more companies | Approach Score 79/100 |
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Company no. 04775471 · Companies House |
| 5 | Asbestos Assessment and Control Bury, Lancashire | Approach Score 79/100 |
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Company no. 04504759 · Companies House |
| 6 | Cobalt NDT ST Helens, Merseyside | Approach Score 78/100 |
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Company no. 04534894 · Companies House |
| 7 | Environoise Wirral | Approach Score 78/100 |
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Company no. 07009576 · Companies House |
| 8 | ACE Southport, Merseyside | Approach Score 78/100 |
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Company no. 03331462 · Companies House |
| 9 | Lancashire Testing Services Bolton, Lancashire A director sits on 4 or more companies | Approach Score 77/100 |
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Company no. 09921520 · Companies House |
| 10 | SPL Fire Safety Ashton-Under-Lyne | Approach Score 77/100 |
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Company no. 07977725 · Companies House |
| 11 | Vacuum Precision Resources Macclesfield, Cheshire | Approach Score 77/100 | We hold older figures than Companies House
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Company no. 03881771 · Companies House |
| 12 | HT PAT Testing Chadderton, Oldham | Approach Score 74/100 |
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Company no. 11902414 · Companies House |
| 13 | Compliance Education Liverpool | Approach Score 74/100 |
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Company no. 09679056 · Companies House |
| 14 | Invek Surveys Warrington, Cheshire | Approach Score 74/100 | We hold older figures than Companies House
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Company no. 02819149 · Companies House |
| 15 | Lynx Energy and Carbon Assessors Burnley, Lancashire A director sits on 4 or more companies | Approach Score 73/100 |
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Company no. 14367830 · Companies House |
| 16 | Redline Safety Warrington, Cheshire | Approach Score 72/100 |
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Company no. 12964451 · Companies House |
| 17 | Manchester Metrology Ashton-Under-Lyne | Approach Score 72/100 |
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Company no. 14801749 · Companies House |
| 18 | LK Group Radcliffe, Manchester A director sits on 4 or more companies | Approach Score 71/100 |
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Company no. 06121294 · Companies House |
| 19 | SOL Acoustics Gadbrook Park | Approach Score 70/100 |
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Company no. 04218702 · Companies House |
| 20 | L & F Solutions Warrington, Cheshire | Approach Score 70/100 | We hold older figures than Companies House
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Company no. 05711282 · Companies House |
| 21 | Inspec Greater Manchester | Approach Score 70/100 | We hold older figures than Companies House
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Company no. 02218329 · Companies House |
| 22 | IFS Laboratories Manchester A director sits on 4 or more companies | Approach Score 69/100 |
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Company no. 04802600 · Companies House |
| 23 | Offset Services Birchwood Warrington, Cheshire | Approach Score 69/100 |
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Company no. 01670487 · Companies House |
| 24 | Pmar Crewe | Approach Score 69/100 |
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Company no. 07459453 · Companies House |
| 25 | Evolve Property Services Consultancy Delph | Approach Score 68/100 | We hold older figures than Companies House
More about this firm
Company no. 05633488 · Companies House |
69 more firms are in the list, in Approach Score order.
You're seeing the first 25. Buy all 94 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.
Buy the list of all 94 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.
What's in the file
One row per firm, in Approach Score order, as Excel + CSV.
It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.
Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.
How this list is filtered
- 5 or more staff, from filed headcount or our estimate where none is filed.
- Registered office in the North West.
How this list is built
The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.
Firms with higher scores appear first in each list.
Use the ranking to order research, then check each business directly.
What it does not mean
No firm here is for sale, and the score says nothing about any owner's plans.
At least 95% of the firms where we hold directors had them checked in or after November 2026.
What we do not cover
Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. Check UKAS accreditation through its accredited bodies directory and read the accreditation schedule. Accreditation covers a defined scope of work, rather than every service a firm offers.
Why age bands but no people's names
Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.
Is this your firm?
You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.
To have personal data erased, see our privacy policy.
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The standard Firmbase list
Buy the list of all 94 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.