Collington Winter Environmental Limited
Based in Bolton · Covers Offices in Bolton, Cambridge, Leicester, Bristol and Dumfries Accreditation not yet checkedOwn website
01 · Planning stage · BNG
Biodiversity net gain assessment in Scotland
16 providers offering biodiversity net gain assessment in or across Scotland, including national firms. The rules in Scotland differ from England’s, so see the notes below.
The rules in Scotland
Scotland doesn’t currently mandate the same statutory biodiversity net gain scheme as England, though positive effects for biodiversity are often expected through planning policy.
16 ecologists for Scotland
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Based in or covering Scotland (3)
Ecosulis Ltd
Based in London · Covers Offices in London, Bristol, Cardiff and Stirling Accreditation not yet checkedOwn website
Veon Ecology Scotland
Based in Perth, Perthshire · Covers Scotland and Northern England Accreditation stated by provider: CIEEM Registered Practice (2025-2026)Own website
National providers (check they cover your area) (13)
ACP Consultants
Based in London · Covers UK-wide Accreditation stated by provider: CIEEMOwn websiteUK-wide
Arbtech Consulting Ltd
Based in Chester · Covers UK-wide (England and Wales) Accreditation stated by provider: Not statedOwn websiteUK-wide
Baker Consultants Ltd
Based in Matlock, Derbyshire · Covers Says it works for developers and land managers across the UK Accreditation stated by provider: Natural England Bat Earned RecognitionOwn websiteUK-wide
Crossman Ecology
Based in Oakhill, Somerset · Covers South West and UK-wide Accreditation stated by provider: Not statedOwn websiteUK-wide
Ecus Ltd
Based in Sheffield, South Yorkshire · Covers Nationwide Accreditation stated by provider: Not statedOwn websiteUK-wide
Green Shoots Ecology
Based in Woodford Green, London · Covers Nationwide Accreditation stated by provider: Not statedOwn websiteUK-wide
Middlemarch Environmental
Based in Coventry · Covers Says it operates throughout the UK; offices in Coventry and Ashbourne Accreditation not yet checkedOwn websiteUK-wide
Phlorum
Based in Brighton, East Sussex · Covers National team; air quality work focused on southern England Accreditation stated by provider: PCA accredited, ISO 9001, ISO 14001, ISO 45001, Expert Witness Institute member, Trustmark registered, River Restoration Centre memberOwn websiteUK-wide
Richard Green Ecology
Based in Woodbury Salterton, Devon · Covers South West England and nationwide Accreditation stated by provider: Not statedOwn websiteUK-wide
Sweco UK
Based in Leeds, West Yorkshire · Covers Nationwide Accreditation stated by provider: Not statedOwn websiteUK-wide
The Ecology Partnership
Based in Leatherhead, Surrey · Covers Surrey, the South East, and projects across England Accreditation stated by provider: CIEEM Registered Practice, BREEAM, SSIP Acclaim, CHASOwn websiteUK-wide
Thomson Environmental Consultants
Based in Guildford · Covers UK-wide Accreditation stated by provider: CIEEMOwn websiteUK-wide
Tyrer Ecological Consultants Ltd
Based in Formby, Merseyside · Covers North West and UK-wide Accreditation stated by provider: Not statedOwn websiteUK-wide
Biodiversity net gain assessment in other regions
London (3) South East (4) South West (7) West Midlands (3) East Midlands (5) Yorkshire and the Humber (4) North West (5)
Getting signed off in Scotland
In Scotland, you need a building warrant from the council before work starts, and design evidence such as SAP and overheating assessments goes in with the application. At the end you submit a completion certificate with your test reports. The council then has 14 days to accept it, and you can’t move into a new building until it does, unless the council allows temporary occupation.