Knock vs CoStar
Side-by-side comparison of AI visibility scores, market position, and capabilities
CRM for multifamily apartment operators; centralizes leads with automated follow-up, tour scheduling, and application processing; portfolio analytics dashboard. Based in Seattle, WA.
About
Knock is a Seattle-based property technology company that provides a CRM and lead management platform designed specifically for multifamily apartment communities and operators. The platform centralizes leads from all sources — ILS listings, website, walk-ins, referrals — into a unified prospect pipeline with automated follow-up sequences, tour scheduling, application processing, and renewal communication. Knock's analytics provide property managers and regional directors with real-time visibility into lead-to-lease conversion metrics, agent performance, and pipeline health across portfolios. The company also offers resident retention features including automated lease renewal outreach, resident communication, and maintenance request management. Knock serves thousands of multifamily communities and regional management companies including large national operators. Founded in 2014, Knock was acquired by RealPage in 2021, integrating with RealPage's broader property management software portfolio while maintaining its brand. It competes with Funnel, Entrata, and Yardi in the multifamily CRM and leasing platform 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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