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§ Private Profile · Seattle, WA, USA
SaaS platform providing a cloud-based CRM and intelligent front office for multifamily apartment property managers, focused on marketing and sales.
Knock, based in Seattle, Washington, provides a cloud-based CRM and intelligent front office platform specifically designed for multifamily apartment property managers. The SaaS platform integrates marketing, sales, communication, applicant screening, and predictive analytics, enabling property managers to engage prospective renters across multiple channels and manage apartment tour scheduling. Serving hundreds of top property management companies, Knock managed over 1.5 million apartment units on its platform by 2021, expanding to millions across North America by 2022. The company had raised $47 million in total funding as of 2021, including a round led by Fifth Wall, and employed 104 people. Knock quadrupled its revenue over a two-year period before RealPage, backed by Thoma Bravo, acquired the company in September 2022. Knock was founded in 2014 by Demetri Themelis and Tom Petry.
Knock has raised $899.0M across 11 funding rounds.
Knock has raised $899.0M in total across 11 funding rounds.
Knock Knock refers to multiple technology companies, with the most prominent being a specialized SaaS platform for the roofing and contracting industry. It builds an all-in-one tool combining CRM, lead generation, storm tracking, and automation to streamline workflows for roofing contractors. The platform serves roofing businesses and contractors, solving problems like fragmented lead management, inefficient job tracking, invoicing, and storm-related marketing by centralizing operations, providing property-specific storm reports, and automating AI-powered ads for high-quality leads.[5] With features like centralized lead tracking and storm-triggered campaigns, it drives productivity and growth in a niche market facing seasonal and data-intensive challenges.[5]
Other entities include Knocknoc (knocknoc.io), a cybersecurity firm orchestrating network access controls to minimize attack surfaces by linking them to identity platforms, keeping ports closed until user authentication—serving enterprises protecting infrastructure without VPNs or cloud routing.[3] There's also a smaller AI phone assistant (KnockKnock) replacing IVR systems for businesses like catering, handling calls, scheduling, and transactions.[2]
Limited public details exist on the founding of the primary Knock Knock roofing platform (knockknock.ai), but it emerged as a tailored solution for contractors needing integrated tools amid rising demand for storm-damage response and digital marketing in construction tech. It likely gained traction through addressing pain points in lead capture and automation for a fragmented industry.[5]
Knocknoc appears as a newer cybersecurity player, focusing on just-in-time access orchestration for existing firewalls and networks, with flexible integrations for clouds, web servers, and OT/ICS environments—its backstory emphasizes practical evolution from static security tools to dynamic, identity-linked controls.[3] The AI phone KnockKnock ties to Goodcall's ecosystem, built by teams in California and elsewhere, prioritizing seamless API and Zapier integrations for broad business adoption.[2]
Knock Knock (Roofing CRM) stands out in proptech/construction tech via:
Knocknoc (Cybersecurity) differentiates through:
KnockKnock AI Phone Assistant:
Knock Knock rides the construction tech wave, where AI and data analytics address roofing's $50B+ U.S. market strained by climate-driven storms and labor shortages—timing aligns with increased storm frequency, making storm-tracking tools essential for contractors capturing insurance-funded leads amid digital transformation.[5] It influences the ecosystem by empowering small contractors with enterprise-grade CRM/automation, reducing barriers to scaling in a sector slow to adopt tech.
Knocknoc taps cybersecurity's shift to zero-trust and JIT access, countering rising zero-day attacks on hybrid clouds/OT; market forces like regulatory pressures (e.g., NIST) favor its non-intrusive model over full VPN overhauls.[3] The AI assistant fits voice AI's expansion, replacing legacy telephony for SMBs in a post-IVR era of conversational commerce.[2]
Knock Knock is poised for expansion as climate volatility amplifies storm-response demand, potentially integrating advanced AI forecasting or marketplace features to dominate roofing SaaS—watch for partnerships with insurers or home services giants. Knocknoc could scale via enterprise adoption in zero-trust migrations, evolving with quantum-resistant auth amid escalating threats.[3][5] Overall, these "Knock" entities highlight niche AI/security innovations primed for AI-agent proliferation and regulatory tailwinds, turning overlooked workflows into competitive edges—echoing the query's nod to tech disruption at the door.
Knock has raised $899.0M across 11 funding rounds. Most recently, it raised $100.0M Debt in August 2025.
Knock has raised $899.0M in total across 11 funding rounds.
Knock's investors include Cantor Fitzgerald, Craft Ventures, 20VC, Afore Capital, Alt Capital, Caffeinated Capital, Davidovs VC, Fifth Wall, FJ Labs, Foundry Group, Icebreaker.vc, Madrona Ventures.