Stessa vs CoStar
Side-by-side comparison of AI visibility scores, market position, and capabilities
San Francisco CA real estate investment tracking and financial management platform for rental property owners; acquired by Roofstock; free tier widely used by individual investors.
About
Stessa is a real estate investment tracking and financial management platform for rental property owners, originally headquartered in San Francisco, California. Founded in 2016 and acquired by Roofstock, a leading single-family rental marketplace, Stessa provides individual landlords and small real estate investors with tools to track the financial performance of their rental portfolios, automate income and expense categorization, and prepare for tax time without the complexity of full property management software.\n\nStessa's platform automatically imports rental income and expense transactions through bank and mortgage account connections, categorizing them against IRS-compliant real estate schedules. Its portfolio dashboard provides landlords with real-time visibility into net operating income, cash flow, equity appreciation, and return on investment across all properties. Stessa generates tax-ready financial reports including Schedule E support and can export data directly to tax software or accountants.\n\nStessa operates a freemium model with a generous free tier that has driven widespread adoption among individual landlords and small investors, making it one of the most widely used financial tracking tools in the residential investment space. Paid tiers add features like rent collection, lease management, and unlimited document storage. Its acquisition by Roofstock creates a strategic connection between property acquisition (Roofstock's marketplace) and ongoing financial management (Stessa), providing investors with an end-to-end ownership platform. Stessa competes with DoorLoop and Buildium but targets a more financially-focused segment of the market.
$2.74B revenue 2024 (+11% YoY); $732M Q1 2025 revenue (+12% YoY); 56th consecutive quarter double-digit growth; 134M+ monthly unique visitors Q4 2024; 6,400+ employees in 14 countries
About
CoStar Group is the leading provider of commercial real estate data, analytics, and marketplace platforms, founded in 1987 in Washington, D.C. by Andrew Florance. The company was built on the conviction that commercial real estate — one of the world's largest asset classes — was fundamentally underserved by reliable data, and that building a proprietary research infrastructure to collect, verify, and distribute property information would create a durable competitive moat. CoStar's core technology combines a massive field research organization with digital data collection tools to maintain the most comprehensive commercial real estate database in the world.\n\nCoStar's product portfolio spans multiple platforms serving different segments of the real estate market: CoStar for commercial real estate professionals, LoopNet for commercial property marketing, Apartments.com for multifamily rental search, Homes.com for residential real estate, and Ten-X for online commercial property auctions. This multi-platform strategy positions CoStar Group as the data and marketplace layer across every major real estate segment. The company attracted more than 134 million unique monthly visitors across its networks in Q4 2024, demonstrating the scale of its audience reach.\n\nCoStar Group reported $2.74 billion in revenue for 2024, an 11% year-over-year increase, marking its 56th consecutive quarter of double-digit revenue growth — a remarkable consistency streak in enterprise SaaS. The company's combination of proprietary data assets, marketplace network effects, and expanding residential real estate ambitions gives it multiple growth vectors as it targets the vast residential brokerage market that dwarfs its existing commercial business.
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