Top CoStar alternatives (2026)

ALN Apartment Data

Nationwide Multifamily Data You Can Rely On

Carrollton, TX

BLDUP

BLDUP is a business intelligence platform offering data analytics and SEO for real estate & construction, delivering targeted content and fast, accurate real-time insights for better decisions.

Boston, Massachusetts

College House

College House, a data analytics platform for student housing, is a subsidiary of Green Street, a real estate intelligence provider.

Atlanta, Georgia

Cotality (Formerly CoreLogic)

Accelerating property data, insights and workflows so agents, lenders, carriers and innovators uncover hidden risks and seize transformative opportunities.

Irvine, CA

HouseCanary

HouseCanary is an AI-powered national real estate brokerage providing accurate home valuations and insights for properties.

San Francisco, California

IncentiFind

IncentiFind identifies over $35 billion in unclaimed green building incentives, providing streamlined action steps and application fulfillment.

Houston, Texas

ApartmentIQ

ApartmentIQ delivers real-time, data-driven multifamily market insights, empowering property managers with competitive intelligence to optimize pricing and leasing strategies.

Madison , Wisconsin

GatherGov

GatherGov helps real estate and capital market professionals make faster decisions by analyzing local government meeting decisions.

Strasburg, VA, USA

HelloData

Multifamily Rent Surveys & Revenue Management

Dover, Delaware

Radix

Radix is on a mission to change how the industry makes decisions by equipping teams with real-time data and visualization tools which produce reliable and insightful market trends.

Scottsdale, Arizona

MARKET STADIUM

Market Stadium provides custom real estate location analytics solutions for institutional multifamily & SFR/BTR (Build-To-Rent) acquisitions.

New York