Engineering and environmental consultancies to acquire in the North West

Updated 9 November 2026

Looking to acquire an engineering or environmental consultancy in the North West? Firmbase ranks 61 engineering and environmental consultancies 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 10 staff and has been in business for 16 years; 2 firms are owned by groups that have acquired several firms in this sector. Looking beyond the North West? Explore the full UK list of engineering and environmental consultancies.

61

Firms

UK 624

15%

Every director 55+

UK 15%

23%

Held 75%+ by one person

UK 19%

16

Median years in business

UK 14

10

Median headcount

UK 11

£500k to £1m

Median turnover band

UK £500k to £1m · includes our estimates

2 firms owned by 1 group that has bought several firms in this sector. That is 3% of this list.

Towns with the most firms

The first 25 firms, in Approach Score order

1

Rigby & Partners

Chorley, Lancashire

Approach Score

79/100
  • In post since 2021
  • 1 individual holds 75%+ · independent
More about this firm
  • 7 staff · turnover est. £124k
  • Net assets £367k (Oct 2025)
2

Walmsley Associates

Lancashire

Approach Score

75/100
  • 1 director aged 60-64, 1 aged 50-54 · longest in post since 2004
  • 2 individuals hold 75%+ · independent
More about this firm
  • 6 staff · turnover est. £777k
  • Net assets £454k (Oct 2024)
3

Tier Environmental

Ellesmere Port, Cheshire

A director sits on 4 or more companies

Approach Score

74/100

We hold older figures than Companies House

  • Director aged 60-64 · in post since 2005
  • 1 individual holds 75%+ · independent
More about this firm
  • 11 staff · turnover est. £1.3m
  • Net assets £468k · newer accounts made up to Mar 2025
4

CRM Rainwater Drainage

Bolton, Lancashire

Approach Score

72/100
  • Director aged 50-54 · in post since 2001
  • 2 individuals hold 75%+ · independent
More about this firm
  • 7 staff · turnover est. £506k
  • Net assets £378k (Feb 2026)

Company no. 04155447 · Companies House

crmrainwater.co.uk

5

Patrick Mann & Associates

Frodsham

Approach Score

71/100
  • In post since 2011
  • 1 individual holds 75%+ · independent
More about this firm
  • 10 staff · turnover est. £1.4m
  • Net assets £1.1m (Sep 2025)

Company no. 07757208 · Companies House

pmaaltd.co.uk

6

Blackett-Ord Conservation Engineering

Cumbria

Approach Score

70/100
  • Longest in post since 2003
  • 2 individuals hold 50%+ · independent
More about this firm
  • 6 staff · turnover est. £290k
  • Net assets £192k (Jul 2025)
7

Keystone Design

Lancashire

Approach Score

70/100
  • Director aged 60-64 · in post since 1998
  • 2 individuals hold 50%+ · independent
More about this firm
  • 8 staff · turnover est. £279k
  • Net assets £65k (Nov 2024)

Company no. 03513630 · Companies House

keystonedesign.co.uk

8

Ubique Ground Engineering

Liverpool, Merseyside

Approach Score

68/100

We hold older figures than Companies House

  • Director aged 55-59 · in post since 2001
  • 1 individual holds 75%+ · independent
More about this firm
  • 9 staff · turnover est. £407k
  • Net assets £30k · newer accounts made up to Dec 2025

Company no. 04166658 · Companies House

ubique-eng.co.uk

9

BDI Structural Solutions

Sale, Greater Manchester

Approach Score

68/100
  • 1 director aged 55-59, 2 aged under 45 · longest in post since 2010
  • 1 individual holds 75%+ · independent
More about this firm
  • 11 staff · turnover est. £535k
  • Net assets £18k (Dec 2025)
10

Abacus Consult

Tarbuck Liverpool, Merseyside

Approach Score

67/100
  • 1 director aged 60-64, 1 aged 55-59 · longest in post since 2004
  • Independent
More about this firm
  • 9 staff · turnover est. £600k
  • Net assets £126k (Jul 2025)

Company no. 05032108 · Companies House

abacusconsult.co.uk

11

Up and Under

Frodsham

A director sits on 4 or more companies

Approach Score

67/100
  • 1 director aged 65-69, 1 aged 60-64, 1 aged 55-59, 2 aged 50-54, 1 aged 45-49 · longest in post since 2002
  • Corporate owner
More about this firm
  • 40 staff · turnover £7.3m
  • Net assets £2.9m (Apr 2026)
  • Director resigned Mar 2025

Company no. 02434409 · Companies House

upandundergroup.com

12

Paul Ennis

Merseyside

Approach Score

66/100

We hold older figures than Companies House

  • Longest in post since 2006
  • 2 individuals hold 50%+ · independent
More about this firm
  • 10 staff · turnover est. £389k
  • Net assets £74k · newer accounts made up to Nov 2025

Company no. 05963765 · Companies House

paulennis.co.uk

13

Docan

Northwich

Approach Score

66/100
  • 1 director aged 55-59, 1 aged 50-54 · longest in post since 2015
  • Corporate owner
More about this firm
  • 9 staff · turnover est. £616k
  • Net assets £345k (Oct 2025)
  • PSC register changed Jun 2025

Company no. 09831771 · Companies House

docanco.com

14

Tweddell & Slater

Penrith

Approach Score

66/100
  • 2 directors aged 55-59 · longest in post since 2009
  • Corporate owner
More about this firm
  • 14 staff · turnover est. £1.1m
  • Net assets £643k (Apr 2025)

Company no. 03940744 · Companies House

tsceltd.com

15

Sub Surface

Lancs

A director sits on 4 or more companies

Approach Score

65/100
  • 1 director aged 70 or over, 2 aged under 45 · longest in post since 1995
  • 1 individual holds 75%+ · independent
More about this firm
  • 7 staff · turnover est. £192k
  • Net assets £60k (May 2025)

Company no. 03140928 · Companies House

subsurface.co.uk

16

P & S Consulting Engineers

Preston, Lancashire

Approach Score

64/100
  • 1 director aged 50-54, 1 aged 45-49 · longest in post since 2006
  • 2 individuals hold 50%+ · independent
More about this firm
  • 5 staff · turnover est. £478k
  • Net assets £242k (Mar 2026)
  • Director resigned Oct 2025 · PSC register changed Oct 2025

Company no. 05709651 · Companies House

pascoe-ltd.co.uk

17

Shawton

Newton LE Willows, Warrington

A director sits on 4 or more companies

Approach Score

64/100

We hold older figures than Companies House

  • In post since 2013
  • 1 individual holds 75%+ · independent
More about this firm
  • 74 staff · turnover £14.9m
  • Net assets £3.2m · newer accounts made up to Jun 2025
  • Director resigned Nov 2025

Company no. 06357880 · Companies House

shawton.co.uk

18

Zero Energy

Manchester

Approach Score

63/100
  • Director aged 45-49 · in post since 2018
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £526k
  • Net assets £724k (Mar 2026)

Company no. 11714309 · Companies House

zepassiv.com

19

Thomas Consulting

Chorley, Lancashire

Approach Score

63/100
  • 1 director aged 65-69, 2 aged 60-64, 2 aged 55-59, 1 aged 45-49, 2 aged under 45 · longest in post since 2009
  • Corporate owner
More about this firm
  • 38 staff · turnover est. £3.1m
  • Net assets £776k (Mar 2025)
  • Director resigned Mar 2026
20

Studio One Engineering

Manchester

Approach Score

61/100
  • 2 directors aged 50-54, 1 aged under 45 · longest in post since 2012
  • 1 individual holds 75%+ · independent
More about this firm
  • 9 staff · turnover est. £253k
  • Net assets £461k (Jan 2026)

Company no. 07908775 · Companies House

studio.engineering

21

Ener-Vate

Manchester, Staffordshire

A director sits on 4 or more companies

Approach Score

61/100
  • 1 director aged 60-64, 1 aged 50-54 · longest in post since 2015
  • Corporate owner
More about this firm
  • 21 staff · turnover est. £1.3m
  • Net assets £446k (Mar 2025)
  • Director resigned Mar 2026

Company no. 08935101 · Companies House

ener-vate.co.uk

22

IGE Consulting

Manchester, Greater Manchester

Approach Score

60/100
  • Director aged under 45 · in post since 2017
  • 1 individual holds 75%+ · held via a trust or firm · independent
More about this firm
  • 14 staff · turnover est. £1.2m
  • Net assets £617k (May 2025)

Company no. 10780128 · Companies House

igeconsulting.co.uk

23

Beechfield Consulting Engineers

Denton, Manchester

Approach Score

59/100
  • 1 director aged 55-59, 1 aged 50-54 · longest in post since 2015
  • Independent
More about this firm
  • 7 staff · turnover est. £286k
  • Net assets £268k (Jun 2026)

Company no. 08569699 · Companies House

bfce.co.uk

24

Taylor Drilling Services

Atherton

Approach Score

58/100
  • In post since 2007
  • 1 individual holds 75%+ · independent
More about this firm
  • 9 staff · turnover est. £788k
  • Net assets £17k (Oct 2025)
25

Entrust Services

Liverpool

Approach Score

58/100
  • Director aged 50-54 · in post since 2011
  • Independent
More about this firm
  • 7 staff · turnover est. £158k
  • Net assets £55k (Dec 2025)

Company no. 07524196 · Companies House

entrust-services.com

36 more firms are in the list, in Approach Score order.

You're seeing the first 25. Buy all 61 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 61 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.
See every filter on the UK list

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.

Read how the Approach Score works

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. There is no single regulator for these consultancies. Check claimed individual Engineering Council registration through RegCheck; professional registration does not certify the consultancy itself.

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.

You can find the company number on Companies House.

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The standard Firmbase list

Buy the list of all 61 firms, with director names, ages and shareholders

Each row comes with the facts behind its score, financials with dates and contact details.