Company lists · Data refreshed September 2026
Top 25 Sustainable IT consulting firms based in the United Kingdom
RevenueBase identified 880 company matches for sustainable IT consulting firms associated with the United Kingdom as of September 2026 and tracks 22,166 professional contacts across them, including 12,030 with verified work emails and 2,948 with mobile numbers. London is the largest hub.
This list covers company matches for sustainable IT consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest sustainable IT consulting firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,119 contacts → | ||||
Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 2 | 3,848 contacts → | ||||
Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 3 | 2,179 contacts → | ||||
Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 4 | 670 contacts → | ||||
Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 5 | 323 contacts → | ||||
Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 6 | 263 contacts → | ||||
Exact match “Jigsaw24 is a leading B2B IT solutions provider.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 7 | 253 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 8 | 167 contacts → | ||||
Exact match “BIP is the international consultancy for the 21st century with over 6,500 consultants globally daring to make a difference.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 9 | 158 contacts → | ||||
Exact match “Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 10 | 142 contacts → | ||||
Exact match “At Sysdoc we exist to help our clients to transform, adapt and operate in order for them to achieve their ambitions, and to provide our own people with opportunities that allow…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 11 | 115 contacts → | ||||
Exact match “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 12 | 93 contacts → | ||||
Exact match “3Keel is an award-winning B-Corp sustainability consultancy committed to making systems, supply chains and landscapes fit for the future.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 13 | 93 contacts → | ||||
Exact match “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 14 | 92 contacts → | ||||
Exact match “AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 15 | 88 contacts → | ||||
Exact match “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 16 | 84 contacts → | ||||
Exact match “We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 17 | 81 contacts → | ||||
Exact match “We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 18 | 67 contacts → | ||||
Exact match “Our mission at The Miles Consultancy (TMC) is to empower businesses with innovative, digital solutions and data-driven insights that reduce costs, lower carbon emissions and…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 19 | 62 contacts → | ||||
Exact match “Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 20 | 60 contacts → | ||||
Exact match “RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 21 | 50 contacts → | ||||
Exact match “We’re agile sustainability experts who break daunting challenges into achievable, collaborative steps.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 22 | 49 contacts → | ||||
Exact match “Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 23 | 47 contacts → | ||||
Exact match “Our world faces unprecedented environmental challenges - from climate change, to biodiversity loss, pollution, and unsustainable resource use.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 24 | 43 contacts → | ||||
Exact match “Nature Positive has a unique combination of environmental, sustainability and business specialists who work with business leaders to help solve their greatest challenges.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 25 | 43 contacts → | ||||
Exact match “Salterbaxter is a team of creatives and consultants at the service of sustainability.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “sustainable IT consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 880 sustainable IT consulting firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 12,030 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Sustainable IT consulting firms based in the United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “sustainable IT consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 12,030 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Sustainable IT consulting firms by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sustainable IT consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many sustainable IT consulting firms are there based in the United Kingdom?
RevenueBase identified 880 company matches for sustainable IT consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
ERM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most sustainable IT consulting firms?
London leads with 350 company records, followed by Bristol (29) and Manchester (24).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,030 professional contacts with verified work emails tracked across these 880 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 880 sustainable IT consulting firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Sustainable IT consulting firms by geography
- Sustainable IT consulting firms based in the United States
- Sustainable IT consulting firms based in Brazil
- Sustainable IT consulting firms based in France
- Sustainable IT consulting firms based in Germany
- Sustainable IT consulting firms based in the Netherlands
- Sustainable IT consulting firms based in Canada
- Sustainable IT consulting firms based in Italy
- Sustainable IT consulting firms based in Spain
- Sustainable IT consulting firms based in Australia
- Sustainable IT consulting firms based in Mexico
- Sustainable IT consulting firms based in Sweden
- Sustainable IT consulting firms based in Switzerland
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Sustainable IT consulting firms based in the United States
- Sustainable IT consulting firms based in Brazil
- Sustainable IT consulting firms based in France
- Sustainable IT consulting firms based in Germany
- Sustainable IT consulting firms based in the Netherlands
- Sustainable IT consulting firms based in Canada
Company intelligence · public preview
Top 25 sustainable IT consulting firms based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 880 matching company records for sustainable IT consulting firms based in the United Kingdom, with 22,166 tracked contacts and 12,030 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 sustainable IT consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ERMerm.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 9,119 contacts → |
“Sustainability is our business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SLR Consultingslrconsulting.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,848 contacts → |
“SLR is a committed partner in our clients’ sustainability journeys.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Baringabaringa.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,179 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ricardo PLCricardo.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 670 contacts → |
“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Atelier TENatelierten.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 323 contacts → |
“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Jigsaw24jigsaw24.comHQ: Nottingham, United KingdomReported employees: 201-500 | Nottingham, United Kingdom | 201-500 | Exact match | 263 contacts → |
“Jigsaw24 is a leading B2B IT solutions provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Wardell Armstrong LLP NOW SLRwardell-armstrong.comHQ: Birmingham, United KingdomReported employees: 501-1,000 | Birmingham, United Kingdom | 501-1,000 | Exact match | 253 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 |  BIP UKbip-group.co.ukHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 167 contacts → |
“BIP is the international consultancy for the 21st century with over 6,500 consultants globally daring to make a difference.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ACREacre.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 158 contacts → |
“Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sysdocsysdoc.comHQ: London (uk), United KingdomReported employees: 51-200 | London (uk), United Kingdom | 51-200 | Exact match | 142 contacts → |
“At Sysdoc we exist to help our clients to transform, adapt and operate in order for them to achieve their ambitions, and to provide our own people with opportunities that allow…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ZTPztpuk.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  3keel3keel.comHQ: Oxford, United KingdomReported employees: 51-200 | Oxford, United Kingdom | 51-200 | Exact match | 93 contacts → |
“3Keel is an award-winning B-Corp sustainability consultancy committed to making systems, supply chains and landscapes fit for the future.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Greengage Environmental LTDgreengage-env.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  AES Sustainability Consultantsaessc.co.ukHQ: Tiverton, United KingdomReported employees: 51-200 | Tiverton, United Kingdom | 51-200 | Exact match | 92 contacts → |
“AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Alfa Energy An Edison Energy Companyalfaenergygroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  FLAGflag.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  clearvue.businessclearvue.businessHQ: Gateshead, United KingdomReported employees: 51-200 | Gateshead, United Kingdom | 51-200 | Exact match | 81 contacts → |
“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  The Miles Consultancythemilesconsultancy.comHQ: Crewe, United KingdomReported employees: 51-200 | Crewe, United Kingdom | 51-200 | Exact match | 67 contacts → |
“Our mission at The Miles Consultancy (TMC) is to empower businesses with innovative, digital solutions and data-driven insights that reduce costs, lower carbon emissions and…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Action Sustainabilityactionsustainability.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  RSP Consulting Engineersrsp.netHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 60 contacts → |
“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Bioregionalbioregional.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“We’re agile sustainability experts who break daunting challenges into achievable, collaborative steps.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Carbonxgen Limitedcarbonxgen.comHQ: Sandhurst, United KingdomReported employees: 11-50 | Sandhurst, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | WRMwrm-ltd.co.uk HQ: Otley, United KingdomReported employees: 11-50 | Otley, United Kingdom | 11-50 | Exact match | 47 contacts → |
“Our world faces unprecedented environmental challenges - from climate change, to biodiversity loss, pollution, and unsustainable resource use.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Nature Positivenaturepositive.comHQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 43 contacts → |
“Nature Positive has a unique combination of environmental, sustainability and business specialists who work with business leaders to help solve their greatest challenges.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Salterbaxtersalterbaxter.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 43 contacts → |
“Salterbaxter is a team of creatives and consultants at the service of sustainability.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 880 company matches
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Sustainable IT consulting firms: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
876 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Sustainable IT consulting firms by metro
Questions about this company list
What does Exact match mean for sustainable IT consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainable IT consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 880 matching company records, 22,166 tracked contacts and 12,030 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Sustainable IT consulting firms by geography
- Sustainable IT consulting firms based in the United States
- Sustainable IT consulting firms based in Brazil
- Sustainable IT consulting firms based in France
- Sustainable IT consulting firms based in Germany
- Sustainable IT consulting firms based in the Netherlands
- Sustainable IT consulting firms based in Canada
- Sustainable IT consulting firms based in Italy
- Sustainable IT consulting firms based in Spain
- Sustainable IT consulting firms based in Australia
- Sustainable IT consulting firms based in Mexico
- Sustainable IT consulting firms based in Sweden
- Sustainable IT consulting firms based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 sustainable IT consulting firms based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/sustainable-it-consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Sustainable IT consulting firms based in the United States
- Sustainable IT consulting firms based in Brazil
- Sustainable IT consulting firms based in France
- Sustainable IT consulting firms based in Germany
- Sustainable IT consulting firms based in the Netherlands
- Sustainable IT consulting firms based in Canada
Company intelligence · public preview
Top 25 sustainable IT consulting firms based in the United Kingdom
RevenueBase records 880 matching company records for sustainable IT consulting firms based in the United Kingdom, with 22,166 tracked contacts and 12,030 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 sustainable IT consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ERMerm.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 9,119 contacts → |
“Sustainability is our business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SLR Consultingslrconsulting.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,848 contacts → |
“SLR is a committed partner in our clients’ sustainability journeys.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Baringabaringa.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,179 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ricardo PLCricardo.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 670 contacts → |
“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Atelier TENatelierten.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 323 contacts → |
“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Jigsaw24jigsaw24.com HQ: Nottingham, United KingdomReported employees: 201-500 | Nottingham, United Kingdom | 201-500 | Exact match | 263 contacts → |
“Jigsaw24 is a leading B2B IT solutions provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Wardell Armstrong LLP NOW SLRwardell-armstrong.com HQ: Birmingham, United KingdomReported employees: 501-1,000 | Birmingham, United Kingdom | 501-1,000 | Exact match | 253 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | BIP UKbip-group.co.uk HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 167 contacts → |
“BIP is the international consultancy for the 21st century with over 6,500 consultants globally daring to make a difference.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ACREacre.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 158 contacts → |
“Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sysdocsysdoc.com HQ: London (uk), United KingdomReported employees: 51-200 | London (uk), United Kingdom | 51-200 | Exact match | 142 contacts → |
“At Sysdoc we exist to help our clients to transform, adapt and operate in order for them to achieve their ambitions, and to provide our own people with opportunities that allow…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ZTPztpuk.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 115 contacts → |
“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 3keel3keel.com HQ: Oxford, United KingdomReported employees: 51-200 | Oxford, United Kingdom | 51-200 | Exact match | 93 contacts → |
“3Keel is an award-winning B-Corp sustainability consultancy committed to making systems, supply chains and landscapes fit for the future.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Greengage Environmental LTDgreengage-env.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | AES Sustainability Consultantsaessc.co.uk HQ: Tiverton, United KingdomReported employees: 51-200 | Tiverton, United Kingdom | 51-200 | Exact match | 92 contacts → |
“AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Alfa Energy An Edison Energy Companyalfaenergygroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | FLAGflag.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | clearvue.businessclearvue.business HQ: Gateshead, United KingdomReported employees: 51-200 | Gateshead, United Kingdom | 51-200 | Exact match | 81 contacts → |
“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | The Miles Consultancythemilesconsultancy.com HQ: Crewe, United KingdomReported employees: 51-200 | Crewe, United Kingdom | 51-200 | Exact match | 67 contacts → |
“Our mission at The Miles Consultancy (TMC) is to empower businesses with innovative, digital solutions and data-driven insights that reduce costs, lower carbon emissions and…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Action Sustainabilityactionsustainability.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | RSP Consulting Engineersrsp.net HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 60 contacts → |
“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Bioregionalbioregional.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“We’re agile sustainability experts who break daunting challenges into achievable, collaborative steps.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Carbonxgen Limitedcarbonxgen.com HQ: Sandhurst, United KingdomReported employees: 11-50 | Sandhurst, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | WRMwrm-ltd.co.uk HQ: Otley, United KingdomReported employees: 11-50 | Otley, United Kingdom | 11-50 | Exact match | 47 contacts → |
“Our world faces unprecedented environmental challenges - from climate change, to biodiversity loss, pollution, and unsustainable resource use.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nature Positivenaturepositive.com HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 43 contacts → |
“Nature Positive has a unique combination of environmental, sustainability and business specialists who work with business leaders to help solve their greatest challenges.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Salterbaxtersalterbaxter.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 43 contacts → |
“Salterbaxter is a team of creatives and consultants at the service of sustainability.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Sustainable IT consulting firms: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
876 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Sustainable IT consulting firms by metro
Questions about this company list
What does Exact match mean for sustainable IT consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainable IT consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 880 matching company records, 22,166 tracked contacts and 12,030 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 sustainable IT consulting firms based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/sustainable-it-consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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