Maryland, known for its diverse landscapes, bustling cities, and historic charm, is a hub for real estate activity. With a competitive and dynamic market, several real estate agencies have established a strong presence in the state, catering to the needs of buyers, sellers, and investors. Here are the five largest real estate agencies in Maryland, offering exceptional services and a comprehensive portfolio of properties.
- Long & Foster Real Estate
Long & Foster Real Estate, established in 1968, is a leading real estate agency in the Mid-Atlantic region, with a significant presence in Maryland. With over 100 offices and 8,000 agents, Long & Foster provides comprehensive real estate services, including residential and commercial sales, rentals, property management, and mortgage services. The agency’s commitment to customer satisfaction, extensive market knowledge, and innovative marketing strategies have made it a trusted name in the Maryland real estate market.
- Keller Williams Realty
Keller Williams Realty, founded in 1983, is a global real estate franchise that has made a significant impact in Maryland. Operating through a network of independent brokerages, Keller Williams Realty provides a wide range of real estate services to clients across the state. The agency’s focus on collaboration, education, and technology has allowed it to become one of the fastest-growing real estate companies in the United States.
- Coldwell Banker Realty
Coldwell Banker Realty, established in 1906, is a renowned real estate agency with a strong presence in Maryland. With over 3,000 agents and 60 offices across the state, Coldwell Banker Realty offers a comprehensive range of real estate services, catering to both residential and commercial clients. The agency’s commitment to integrity, professionalism, and excellence has earned it a reputation for delivering exceptional real estate experiences.
- ERA Real Estate
ERA Real Estate, founded in 1971, is a global real estate franchise with a significant presence in Maryland. With over 2,000 agents and 50 offices across the state, ERA Real Estate provides a full suite of real estate services, including residential and commercial sales, rentals, and property management. The agency’s focus on customer service, innovative marketing strategies, and extensive training programs has made it a popular choice for homebuyers and sellers in Maryland.
- RE/MAX
RE/MAX, established in 1973, is a global real estate franchise that has a strong presence in Maryland. With over 1,500 agents and 40 offices across the state, RE/MAX offers a wide range of real estate services, including residential and commercial sales, rentals, and property management. The agency’s commitment to professionalism, exceptional customer service, and cutting-edge technology has made it a trusted name in the Maryland real estate market.

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The 7 Biggest Real Estate Agency near Maryland
The Bob & Ronna Group
- Address: 3410 Plumtree Dr, Ellicott City, MD 21042, United States
- Map: Click here
- Rating: 4.9 (620)
- Phone: +1 410-729-6673
- Website: Link
- Opening hours:
Monday: 8:00 AM – 9:00 PMTuesday: 8:00 AM – 9:00 PMWednesday: 8:00 AM – 9:00 PMThursday: 8:00 AM – 9:00 PMFriday: 8:00 AM – 9:00 PMSaturday: 8:00 AM – 9:00 PMSunday: 8:00 AM – 9:00 PM - Reviews:
3 months agoI’m literally sitting in my perfect home right now. I worked with Corey Liberatore and I highly recommend him! Corey is a knowledgeable Realtor who knows the Baltimore markets well. From day one, Corey was always available by text or phone, always very punctual, answered questions without hesitations and never once faltered from his genuine and good natured attitude. I’m grateful I was able to work with Corey because I’m writing this review in a room in a house that feels like my home. Thank you, Corey!in the last weekExcellent experience with both selling & buying with Cody Joy with The Bob & Ronna Group in 21044/21045 area. Cody was very knowledgeable, very patient, all ways on time, quick in returning calls & messages, & listened to what we wanted in a new house. He was enthusiastic about selling our house & finding the correct house for us, which he did. All transactions went smoothly. Would definitely use Cody Joy again.a month agoDiana Phillips, who was our realtor through the Bob and Ronna group, was amazing. She was so patient and very easy to reach, and in all ways excelled to provide her services. Even when we were having trouble dealing with the sellers for our recently bought home, her and the Bob and Ronna group had our backs and didn’t let them take advantage of us. We would definitely recommend them if someone were to be looking for a home, they treated us like good friends and we’re happy we went with them for our home.2 months agoCody Joy has been most helpful and extremely patient with my home search. I was very picky about my needs and staying within budget. He recommended some great places, and perservered to find the right match for me. Cody’s keen eye for potential issues kept the total cost of acquisition and ownership transparent.2 months agoReed was absolutely wonderful. He’s extremely knowledgeable, and one of the most patient people I’ve ever met! Very personable too! He really made sure we understood every step of the lengthy process. I HIGHLY recommend him!
SURE Group Real Estate
- Address: 3500 Boston St suite c, Baltimore, MD 21224, United States
- Map: Click here
- Rating: 4.9 (168)
- Phone: +1 410-814-2403
- Website: Link
- Opening hours:
Monday: Open 24 hoursTuesday: Open 24 hoursWednesday: Open 24 hoursThursday: Open 24 hoursFriday: Open 24 hoursSaturday: Open 24 hoursSunday: Open 24 hours - Reviews:
3 months agoAndrew Undem helped us buy and sell out last house and was amazing. Andrew takes away the stress as a buyer and seller, and really makes the experience straight forward and enjoyable. You can really tell he has your best interest in mind and isn’t afraid to be honest with you. He tells you what you need to hear, not what you want to hear. He is your best advocate. He seems to be on the forefront of marketing within the great Baltimore area and uses every technology and media to his advantage, which trickles down to your buying and selling advantage. Highly recommended.3 months agoAndrew and team at SURE Group Real Estate are hands down the best real estate agents in the Greater Baltimore area! We recently purchased our FIRST home and the SURE Group team guided us through the entire process, calming our nerves and finding the perfect home for us. Andrew’s expertise in the real estate industry is unmatched. If you’re looking for a real estate agent that will go above and beyond, SURE Group is your answer!3 months agoAbsolutely phenomenal experience. Didn’t even go to market! Andrew and his team went above and beyond; they came in with a clear plan and executed it to perfection. It was really impressive seeing the sales pitch exceed my expectations, when I typically find the process underwhelming. I will not buy or sell another house in Maryland without him and his team. Would give an extra star if I could.3 months agoOne of the best decisions I’ve ever made was choosing to use SURE Group for all of my company’s real estate process needs. Their knowledge and experience, combined with their customer first approach, makes this otherwise stressful event a smooth and successful process. I highly recommend them to anyone looking for top-notch service. We will be using them as long as we are in business.3 months agoThe dictionary defines superlative as “of the highest kind, quality, or order, surpassing all else, or others. Supreme.” I define it as Andrew Undem. As a real estate agent, as a leader, a professional, and as a friend…Andrew is of the highest kind, quality, and order. Supreme. I strongly recommend Andrew and his SURE Group team as your real estate professionals of choice.
R.E. Shilow Realty Investors, Inc.
- Address: 6700 Alexander Bell Dr STE 200, Columbia, MD 21046, United States
- Map: Click here
- Rating: 4.9 (135)
Real Estate Connection
- Address: 9841 Washingtonian Blvd Suite 200, Gaithersburg, MD 20878, United States
- Map: Click here
- Rating: 4.9 (133)
Key Group of Cummings & Co. Realtors
- Address: 201 Key Hwy, Baltimore, MD 21230, United States
- Map: Click here
- Rating: 4.9 (129)
IMPACT Maryland Real Estate
- Address: 5300 Westview Dr #101, Frederick, MD 21703, United States
- Map: Click here
- Rating: 5 (115)
Jeff Berman – RE/MAX 100
- Address: 10440 Little Patuxent Pkwy Ste 100, Columbia, MD 21044, United States
- Map: Click here
- Rating: 5 (105)

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Top Real Estate Agency Alternatives in Maryland
The Biggest Real Estate Agency in United States
When it comes to choosing a real estate agency in Maryland, there are several options available. However, three agencies stand out for their popularity and reputation:
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Keller Williams Realty
Keller Williams Realty is one of the largest real estate franchises in Maryland, known for its extensive network of agents and excellent customer service. With a strong emphasis on training and education, Keller Williams agents are equipped with the knowledge and skills to assist both buyers and sellers in their real estate transactions.
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Long & Foster Real Estate
Long & Foster Real Estate has been serving the Maryland market for over 50 years. As one of the leading real estate agencies in the state, Long & Foster has a deep understanding of the local market trends and provides comprehensive services to buyers and sellers. Their team of experienced agents is known for their professionalism and commitment to client satisfaction.
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RE/MAX Realty
RE/MAX Realty is a globally recognized real estate brand with a strong presence in Maryland. Known for their extensive marketing reach and advanced technology tools, RE/MAX Realty agents are skilled in maximizing exposure for their listings and helping clients achieve their real estate goals. With a focus on innovation and customer service, RE/MAX is a top choice for many buyers and sellers in Maryland.
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