Company lists · Data refreshed September 2026

Top 13 Green bond advisors based in the United Kingdom

RevenueBase identified 26 green bond advisors headquartered in the United Kingdom as of September 2026 and tracks 117 professional contacts across them, including 64 with verified work emails. London is the largest hub.

This list covers green bond advisors headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
26Companies
117Contacts tracked
64Verified emails
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The 13 largest green bond advisors based in the United Kingdom

Ranked by team size
Top 13 of 26 green bond advisors based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to green bond advisors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBristol, United KingdomHQ checked Sep 20, 202611-5031 contacts →

Indirect evidence

“We believe that if you understand your environmental targets, you will have a better understanding of their real-world impacts.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceBirmingham, United KingdomHQ checked Sep 20, 20261-1013 contacts →

Indirect evidence

“Change isn’t new.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-1012 contacts →

Partial evidence

“Globalfields is a specialised consultancy, advisory and training service provider on climate and sustainable finance, environmental governance and development.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceManchester, United KingdomHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“Mainer Associates is a specialist Sustainability Consultancy helping to deliver a wide range of projects across different sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceCambridge, United KingdomHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Founded by leading specialists in sustainable finance, WeESG's mission is to help organisations get to grips with these challenges.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“Welcome to our world of green certifications!”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceStroud, United KingdomHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“We take pride in the fact that our experience and independence means we offer unbiased and reliable advice.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“Carbon 3 Energy (C3E) is an advisory firm specializing in the “Energy Transition," Our core belief is that the “energy generation mix” is the most important strategy over the next…”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“Independent investment banking advisory focused on the decarbonization of hard to abate industries”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-102 contacts →

Partial evidence

“Investing in a Sustainable Planet today We work closely with our legal partners to draft and issue sustainable bonds, ensuring compliance with all relevant framework.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Building Partnerships for Impactful Investments SustainExis is a boutique consulting firm that combines sustainability and finance to offer end-to-end solutions based on…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-101 contacts →

Partial evidence

Green Consult-Global is a company operating in the UK offering professional consulting services exclusively for the Green Building Market.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSandwich, United KingdomHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Is your business coming under increasing pressure from customers to demonstrate your commitment to sustainability; for example 'Net Zero' as part of a commercial tender…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 13 of 26 green bond advisors based in the United Kingdom

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Green bond advisors based in the United Kingdom at a glance

As of Sep 20, 2026
54.7%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
53.8%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
3

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 26 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among green bond advisors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “green bond advisors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names green bond advisors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among green bond advisors, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 64 across the full list. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names green bond advisors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many green bond advisors are there based in the United Kingdom?

RevenueBase identified 26 green bond advisors headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SCS Sustainable Construction Services, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most green bond advisors?

London leads with 14 headquartered companies, followed by Bristol (2) and Beckenham (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 64 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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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 Smart Search, 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.