Company lists · Data refreshed September 2026
Top 25 Landlord associations worldwide
RevenueBase identified 1,885 landlord associations worldwide as of September 2026 and tracks 46,999 professional contacts across them, including 3,295 with verified work emails. The United States is the largest market and London the largest hub.
This list covers landlord associations worldwide, 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. Country and city lists for landlord associations follow the table.
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.
The 25 largest landlord associations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 34,061 contacts → | ||||
Partial evidence “CASA is an industry leading association that can provide you with the edge you need to be an effective business owner with a substantial property portfolio and gives you the power…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 245 contacts → | ||||
Partial evidence “The National Apartment Association envisions a world where rental housing is a valued partner in every community.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 231 contacts → | ||||
Partial evidence “Our mission is to improve landlords’ services and residents’ lives through housing complaints.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 198 contacts → | ||||
Indirect evidence “Syndicat immobilier, marque, regroupement de professionnels… depuis plus de 75 ans, la Fédération Nationale de l’Immobilier est LA référence du secteur, pour les professionnels…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 188 contacts → | ||||
Indirect evidence “Vi på Fastighetsägarna Service är experter på fastighetsförvaltning och vår passion är att förenkla och skapa framtidens fastighetsägande.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 168 contacts → | ||||
Indirect evidence “O maior sindicato do setor imobiliário da América Latina com mais de 65 anos de atuação que representa mais de 55 mil empresas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 162 contacts → | ||||
Indirect evidence “We are here to level up the real estate industry, one user, one business, and one action at a time.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 151 contacts → | ||||
Partial evidence “Greater Vancouver REALTORS® (GVR) is a member-based association of more than REALTORS® who live and work in communities from Whistler to Maple Ridge to Tsawwassen, and everywhere…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 144 contacts → | ||||
Partial evidence “Created in 1896 the Real Estate Board of New York was the first real estate trade association in the state.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 125 contacts → | ||||
Strong evidence “The NRLA is the UK’s largest association for private residential landlords, representing over members across England and Wales.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 121 contacts → | ||||
Indirect evidence “EspaceProprio croit que la maison est plus qu’un lieu de vie, c’est un lieu d’accomplissement.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 116 contacts → | ||||
Indirect evidence “One of the largest letting agents in the UK, with over 90 offices across the UK, Northwood operates tried and tested systems that are continuously evolving to ensure that they…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 115 contacts → | ||||
Indirect evidence “Há 90 anos uma das administradoras mais sólidas e inovadoras do Rio de Janeiro.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 112 contacts → | ||||
Indirect evidence “Allsop Letting and Management (ALM) is a wholly owned subsidiary of Allsop LLP created in as a dedicated management service for the residential property investment sector…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 93 contacts → | ||||
Indirect evidence “ALBOA - Almen Boligorganisation Aarhus er byens næststørste almene boligorganisation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 87 contacts → | ||||
Indirect evidence “Based in Washington, D.C, the National Multifamily Housing Council (NMHC) is where rental housers and suppliers come together to help meet America’s housing needs by creating…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 77 contacts → | ||||
Partial evidence “The Quebec Professional Association of Real Estate Brokers is a non-profit association that brings together more than 12,500 real estate brokers and agencies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 73 contacts → | ||||
Partial evidence “The Orlando Regional REALTOR® Association is one of the largest local trade associations in the state of Florida, with more than members in Hillsborough, Lake, Orange, Osceola…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 72 contacts → | ||||
Partial evidence “Established in 1971 as Retirement Lease Housing Association (RLHA), Ethical Leasehold Management (ELM) Group is the freeholder of its own apartment/estate buildings and a…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 71 contacts → | ||||
Indirect evidence “Illinois REALTORS® is the only advocate for private property rights at the State Capitol in Springfield and in city halls across Illinois.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 67 contacts → | ||||
Indirect evidence “The Urban Development Institute of Australia (UDIA) is a nationally recognised organisation that embodies the residential property industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 62 contacts → | ||||
Indirect evidence “A Associação Brasileira das Administradoras de Imóveis (ABADI) é uma entidade que está há mais de 4 décadas no mercado imobiliário (fundada em 17 de outubro de 1974), sem fins…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 61 contacts → | ||||
Indirect evidence “Broward, Palm Beaches & St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Partial evidence “Since 1974, we’ve been a refreshingly independent practitioner of block management earning the trust of tenants' associations and resident boards.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Partial evidence “Arizona REALTORS® is the largest trade association in the Grand Canyon State, representing more than members from all areas of real estate, including residential, commercial…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: landlord associations. 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 landlord associations.
- Partial evidence
- Its own public description names part of landlord associations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name landlord associations. 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 1,885 landlord associations worldwide
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Landlord associations worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 landlord associations, 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.
- Coverage
- Every country. Country and city lists for landlord associations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “landlord associations”. 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 landlord associations), 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 landlord associations, and records with no verified work email.
- 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, 3,295 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.
Landlord associations by location
10 lists · largest firstEvery Landlord associations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Landlord associations based in the United States575
- Landlord associations based in the United Kingdom406
- Landlord associations based in Germany107
- Landlord associations based in Canada67
- Landlord associations based in France54
- Landlord associations based in the Netherlands45
- Landlord associations based in Spain37
- Landlord associations based in Australia35
- Landlord associations based in New Zealand31
- Landlord associations based in Denmark28
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 landlord associations, 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 landlord associations are there worldwide?
RevenueBase identified 1,885 landlord associations worldwide 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?
CASA, headquartered in Bedfordview, tops this list with the largest team on record.
Which country has the most landlord associations?
The United States leads with 575 companies, followed by the United Kingdom (406) and Germany (107). Every landlord associations list by country and city is linked on this page.
Which city has the most landlord associations?
London leads with 88 headquartered companies, followed by Auckland (15) and Paris (15).
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 3,295 verified decision-maker contacts tracked across these 1,885 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.