Top 5 Largest MLSs in the U.S.

The MLS or multiple listing service is a solution that helps real estate professionals see and share local property listings in order to support the interests of their clients. Back in the 1800s, real estate representatives often met and shared information about the property they were selling or buying. They made an agreement with each other to compensate the brokers who helped sell the property. That is how the first MLS was born, and after that, real estate agents and brokers spent millions of dollars to develop Multiple Listing Services. In this blog, you will learn about the top 5 largest MLSs in the U.S

Let’s dive into it!

California Regional Multiple Listing Service (CRMLS)

CRMLS provides access to accurate data and various technology products designed to help their clients’ businesses shine. CRMLS educates and supports users on every core service they offer.

  • Established-1980 
  • Since 2010, it’s been operating as a subsidiary of California MLS.
  • Located-Chino Hills, CA
  • Serves-over 78,000 professionals across the state
  • Offers:
    • Updated data
    • Technology tools
    • Educational resources 
    • Provides the most affordable, reliable, and convenient listing service available.
  •  Listings: around 1,200,000
  • Agents: around 96,000

The company’s mission is to deliver the most affordable, reliable, and convenient listing technology service available to achieve business goals.

California Regional Multiple Listing Service covers the following counties:

  • Los Angeles
  • Orange
  • Riverside
  • San Bernardino
  • San Luis Obispo
  • Santa Clara
  • Ventura

For the full list of our MLS providers, check out the MLS Coverage Page.

To see the top cities in CRMLS, please click here: California Regional MLS (CRMLS)

Bright MLS

BrightMLS offers more ways to search listing and public records information. Moreover, a full, map-based search with the DriveTime search option built-in, property history, contract statuses, prices, and mortgage history is provided by Bright MLS.

  • Established-2015 
  • Located in the Mid-Atlantic region
  • Serves-95,000 customers
  • Regions-Pennsylvania, Delaware, Virginia, Washington DC, Maryland, New Jersey

To see the top cities, please check the Bright MLS

Stellar MLS

Stellar MLS aims to provide its members with the service, technology, and support they need constantly in their market.

  • Established-1993
  • Located-Altamonte Springs, FL
  • Members-58,000
  • Listings-300,000+


To see the top cities, check out the Stellar MLS

First Multiple Listing Service

The First Multiple Listing Service in the state of Georgia takes pride in having one of the most accurate listing databases nationwide. FMLS Marketplace provides the vendor with a means to create unique content. 

  • Established-1957
  • Located-The state of Georgia
  • Listings-31,000
  • Offices-2,600
  • Agents-43,000


To see the top cities, check out First MLS.

MIAMI Association of Realtors

The MIAMI Association of Realtors was engaged by the NAR in 1920. This year they are celebrating 101 years of service to Realtors. The largest local Realtor association in the U.S. has official partnerships with more than 220 international organizations around the world.

  • Established-1920
  • Located-South Florida
  • The largest local Realtor association in the United States
  • Mission-To be the business and public policy advocate for REALTORS®, while influencing and shaping the real estate industry
  • Agents: 47,000


To see the top cities of this MLS, check out  MIAMI AR

These are the top 5 largest Multiple Listing Servicess in the U.S. I hope you found this information helpful.

If you want to know more about Realtyna’s Organic MLS Integration, see the blog: why Organic MLS Integration offers more SEO value than content writing.

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The opinions or information expressed in this article are those of the author and do not necessarily reflect the official views, policy, or position of Realtyna. The information on Realtyna’s Website is general, for informational purposes only, and is not to be relied upon or interpreted as real estate, legal, accounting, or other professional advice or a substitute. Please discuss anything related to the certification process, professional advice or legal procedures with your MLS providers.

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