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Mainstay raises over $18M in funding led by investors including Parker89 and Khosla Ventures to expand operations and development efforts.

PRIVATESep 17, 2026•about 2 hours ago

Amount Raised

$18 Million

Round Type

Venture - Series Unknown

TempeReal EstateHospitality

Investors

Clocktower Technology VenturesEra VenturesKhosla VenturesFj LabsAlpaca VcStackpointParker89

Description

Mainstay, a San Francisco-based provider of an intelligent system for residential real estate, raised over $18M in funding. The funds will be used to expand the company's operations and development efforts. Notable backers included Parker89, Stackpoint, and Khosla Ventures. The platform connects data and decisions across the residential asset lifecycle.

Company Information

Company

Mainstay

Location

Tempe, Arizona, United States

About

Mainstay is the premier provider of actionable data and high-quality tools to empower renters with information, expand opportunities for market participants, and to bring clarity and trust to the single-family rental ecosystem. Founded within Opendoor, Mainstay launched as an independent company in 2024.

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Funding Insights

Based on industry data
VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers
Tech investment trends
83% of B2B companies plan digital investments, with 79% prioritizing customer experience tech

Mainstay raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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