MLS Data Services USA Canada

We specialize in Data, Insights, and Technology.

When it comes to national property and listing data, you want to work with best. We’re a single source for top shelf property data with the broadest coverage and the most flexible delivery.

Commission Calculation Software Real Estate Brokerage

Commission Solutions for Modern Companies

The industry’s most customizable, easy-to-use, and seamlessly integrable commissions solution.

MLS Website Builder CMS

See Your Vision Come to Life

The best versatile, no-code website builder for real estate professionals.

What We’re About

With scale comes opportunity

Constellation partners with industry to make life easier for its customers. As a premier provider of software solutions, data and analytics for the real estate and mortgage industries, our mission is to deliver unmatched solutions that help companies build great products and grow their businesses.

We are part of the Perseus Operating Group and Constellation Software Inc. (CSI), a leader in enterprise software for a diverse range of industries with over 125,000 customers across more than 100 markets globally.

Customers first

We’re a customer-first company. We invest in our customers and their sustained success, improve their experience, and deliver value every single day.


Our buy-and-hold strategy means when we invest in a promising company, we do so for life. Our solutions aren’t for sale, and it shows in how we do business.


We pride ourselves in being at the forefront of real estate tech, which means prioritizing R&D to make our solutions even better.


Our team is our strength. Their focus, dedication, and expertise are what make us who we are.

Brands we’ve helped mobilize

Data Services

SERHANT. & Constellation1: Fuelling National Expansion and a Commitment to Innovation with Real Estate Data

Back Office

Real Estate One and Constellation1: Empowering brokerage brilliance through an integrated management platform

Industries we serve


Real Estate