Company lists · Data refreshed September 2026

Top 25 Sustainable real estate investment firms based in London, United Kingdom

Name: Sustainable real estate investment firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 329 companies tracked

RevenueBase identified 329 sustainable real estate investment firms headquartered in London, United Kingdom as of September 2026 and tracks 4,952 professional contacts across them, including 2,368 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers sustainable real estate investment firms headquartered in London, 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 29, 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 29, 2026 86% judged on-target in blind review

329Companies

4,952Contacts tracked

2,368Verified emails

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The 25 largest sustainable real estate investment firms based in London, United Kingdom

Ranked by team size

Top 25 of 329 sustainable real estate investment firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable real estate investment firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Landsec	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	935 contacts →
	Indirect evidence “Landsec is built on places that stand the test of time.” Source: RevenueBase Database · checked Sep 29, 2026
2	Canary Wharf Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	633 contacts →
	Indirect evidence “Canary Wharf Group (CWG) is the developer of the largest urban regeneration project in Europe.” Source: RevenueBase Database · checked Sep 29, 2026
3	Greystar International	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	401 contacts →
	Strong evidence “At Greystar, we approach investing in, developing, and operating residential real estate with discipline and integrity.” Source: RevenueBase Database · checked Sep 29, 2026
4	Savills Investment Management	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	365 contacts →
	Partial evidence “Our purpose is to build prosperity by investing in resilient real assets.” Source: RevenueBase Database · checked Sep 29, 2026
5	Octopus Energy Generation	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	153 contacts →
	Indirect evidence “At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.” Source: RevenueBase Database · checked Sep 29, 2026
6	Criterion Capital	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	108 contacts →
	Strong evidence “Criterion Capital is a real estate asset manager that identifies, acquires, develops and manages real estate on behalf of long-term investors.” Source: RevenueBase Database · checked Sep 29, 2026
7	CEG	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	105 contacts →
	Indirect evidence “Never one to follow the pack, CEG leads by doing things its own way.” Source: RevenueBase Database · checked Sep 29, 2026
8	Cain International	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	98 contacts →
	Strong evidence “Cain International ('Cain') is a privately held investment firm focused on real estate and business opportunities that shape the fabric of global gateway cities.” Source: RevenueBase Database · checked Sep 29, 2026
9	Nextenergy Capital	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	83 contacts →
	Partial evidence “NextEnergy Capital was founded in 2007 to become the leading specialist investment and asset manager in the solar sector.” Source: RevenueBase Database · checked Sep 29, 2026
10	Sustainable Development Capital, LLP Sdcl	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	74 contacts →
	Strong evidence “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
11	RAB Capital	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	62 contacts →
	Indirect evidence “RAB Capital is a private company that invests in a wide range of assets based on fundamental analysis.” Source: RevenueBase Database · checked Sep 29, 2026
12	Long Harbour LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	54 contacts →
	Strong evidence “Long Harbour is a modern real estate investment management firm and a leader in the operational real estate sector.” Source: RevenueBase Database · checked Sep 29, 2026
13	Essential Living	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	53 contacts →
	Indirect evidence “Essential Living is a London-based property developer with a difference: we don’t sell any of the homes we’ve lovingly built, we rent them.” Source: RevenueBase Database · checked Sep 29, 2026
14	REM	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Strong evidence “Real Estate Management (UK) Limited (REM) provides property development and asset management services to real estate investors in London.” Source: RevenueBase Database · checked Sep 29, 2026
15	Lamington Group B Corp	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Strong evidence “Lamington Group is an independent family-owned real estate investment and development company, which was founded in the 1960s and is based in West London.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ocubis LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Indirect evidence “Ocubis is a privately held property company which owns, manages and develops commercial and residential properties in London.” Source: RevenueBase Database · checked Sep 29, 2026
17	Lazari	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	41 contacts →
	Partial evidence “Lazari Investments Limited is one of three UK business groups owned directly or beneficially by the Lazari family.” Source: RevenueBase Database · checked Sep 29, 2026
18	Osmosis Investment Management	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	40 contacts →
	Strong evidence “Osmosis’ mission since 2009 has been to become the world’s leading dedicated sustainable asset manager, delivering client-focused investment solutions across multiple asset…” Source: RevenueBase Database · checked Sep 29, 2026
19	Topland Group PLC	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	32 contacts →
	Strong evidence “Our market-leading team of real estate and finance professionals ensures that we deliver on our mission: to invest sustainably, creating social value whilst consistently…” Source: RevenueBase Database · checked Sep 29, 2026
20	Asper Investment Management	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	32 contacts →
	Strong evidence “Asper Investment Management is a leading specialist investment management firm focused on building large-scale sustainable energy platforms.” Source: RevenueBase Database · checked Sep 29, 2026
21	Henley Investment Management LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	31 contacts →
	Strong evidence “Henley is a global investment and fund management firm specializing in private equity real estate, deploying capital from both institutional and private investors.” Source: RevenueBase Database · checked Sep 29, 2026
22	Forum Partners	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	28 contacts →
	Strong evidence “Forum Partners is a global real estate investment management firm with five offices across Europe, Asia and North America.” Source: RevenueBase Database · checked Sep 29, 2026
23	Vastint UK	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	27 contacts →
	Partial evidence “We develop, own and manage sustainable offices, homes and hotels across Europe.” Source: RevenueBase Database · checked Sep 29, 2026
24	Longspur Capital	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “Longspur Capital is a new energy and cleantech specialist offering investment management, corporate finance and investment research.” Source: RevenueBase Database · checked Sep 29, 2026
25	Brilliant Estates Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable real estate investment firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sustainable real estate investment firms.
Partial evidence: Its own public description names part of sustainable real estate investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable real estate investment firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 329 sustainable real estate investment firms based in London, United Kingdom

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Sustainable real estate investment firms based in London, United Kingdom at a glance

As of Sep 29, 2026

47.8%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

211

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 329 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 sustainable real estate investment firms, 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 London, United Kingdom whose own description of what they do matches “sustainable real estate investment firms”. 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 sustainable real estate investment firms), 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 sustainable real estate investment firms, and records with no verified work email. Companies headquartered outside London 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, 2,368 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 29, 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 sustainable real estate investment firms, 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 sustainable real estate investment firms are there based in London, United Kingdom?

RevenueBase identified 329 sustainable real estate investment firms headquartered in London, 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?

Landsec, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most sustainable real estate investment firms?

London leads the United Kingdom with 329 headquartered companies, followed by Manchester (22) and Birmingham (14).

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 2,368 verified decision-maker contacts tracked across these 329 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 29, 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.