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Client Testimonials
★★★★★
"We interviewed four of the top realtors in Boulder and decided to hire Zach. We were not disappointed. Zach was very upfront and honest, gave great advice and had tremendous instincts for selling. Extremely professional, first class! Would highly recommend." - User44807917
★★★★★
"Zach is a cool hand, very professional and an excellent listener. Happy to have him represent our home when the time came to sell. He has access to great local information and his experience proved a valuable asset in getting our deal done." - Erik H.
★★★★★
"Zach has been a wonderful ally for us in our real estate process. He has watched the market, found hidden gems, guided us through transactions, and throughout it all kept a level head. I recommend Zach to anyone looking for real estate expertise in Boulder." - Kaleyww
★★★★★
"We decided to work with Zach to purchase a home in Boulder after meeting with several other realtors in the area. Zach is extremely knowledgable about the Boulder market, and imparted a good deal of information that helped us narrow down the neighborhoods we should consider. We worked with him over several months, ultimately winning a bid on a competitive property in a desirable neighborhood. We were impressed with Zach's professional manner, his knowledge about the market and value of individual homes, and his confidence in making offers in a very competitive market. We look forward to working with Zach in the future!" - Andrew H.
★★★★★
"Working with Zach was effortless. I hired him based the reputation he's built in Boulder over many years and it's obvious why people speak so highly of him. He is everything you want in an agent (dedicated, knowledgable, calm + controlled, discreet) and nothing you don't (dishonest, dramatic, unethical). He's really a cut above the rest, and I'll happily work with him again as well as refer him out to my network." - Liz337
Revenue
The Zach Zeldner Team 2025 Results
2025 Total Sales Volume:
$190.14M total sales volume
93 transactions
$2.04M average sales price
8.02% market share in City of Boulder
2025 Luxury ($2.5M+) Sales Volume in Boulder:
$96,240,000
24 transactions
20.97% market share in City of Boulder
Sources: RealTrends Verified, 2025 sales data (volume, transactions, average price); IRES MLS via BrokerMetrics, January 1 to December 31, 2025 (City of Boulder market share and luxury figures).
Awards
#1 Producing Compass Agent in Boulder (2019-2025)
#1 Medium Team in Boulder and Colorado by Sales Volume, RealTrends Verified (2025 and 2026 rankings)
Double Black Diamond Team, 5280 Magazine Denver's Top Producers 2026
RE/MAX Titan Club (2017)
RE/MAX Diamond Club (2015)
RE/MAX Diamond Club Team (2016)
Press
Wall Street Journal: Gus King, Owner of Kentucky Derby Horse Publisher, Asks $25 Million for Colorado Estate
Specialties
Languages: English, Spanish
Education
The Loomis Chaffee School
Zach Zeldner is the #1 Realtor in the City of Boulder and Boulder County by sales volume (IRES MLS via BrokerMetrics, 2025) and the founder of The Zach Zeldner Team at Compass, the #1 medium team in Boulder and Colorado by sales volume (RealTrends Verified, 2025 sales data). As a leading Boulder real estate agent, Zach specializes in luxury real estate in Boulder, CO, while advising buyers and sellers across all price points.
With over $1 billion in career sales and more than $750 million in sales since 2019, Zach is known for his strategic approach, market expertise, and client-first philosophy. His understanding of Boulder's neighborhoods, housing inventory, and market dynamics allows him to guide clients through one of the most competitive real estate markets in Colorado.
Through The Zach Zeldner Team, clients benefit from a full-service experience supported by in-house marketing, operations, and transaction management professionals. Prior to launching Compass in Boulder, Zach was a top-producing Realtor at Re/Max Alliance, where his team closed over $450 million in sales between 2012 and 2018 and earned recognition as one of the top real estate teams in the Mountain States region. He has received multiple industry honors, including Hall of Fame and Lifetime Achievement awards.
Originally from Connecticut, Zach attended The Loomis Chaffee School and the University of New Hampshire. A former competitive soccer player, he is often found running Boulder's trails. Outside of real estate, Zach enjoys spending time with his wife, Jessica, and their two sons, exploring Boulder and traveling together.
Zach Zeldner’s Transactions

$6,750,000
- 3
- Bedrooms
- 3.5
- Bathrooms
305 Hollyberry Ln















