Mainstay
Intelligent system of record automating data and transactions for the residential real estate lifecycle.
Mainstay is a real estate & construction company based in San Francisco, US, founded in 2024. It has raised $18 million in disclosed funding. Its latest round was a Growth of $18 million in September 2026.
Overview
No overview yet. It is written from sources once there are enough of them.
Funding
Total disclosed: $18M across 1 round. Computed only from sourced rounds.
Investors
Questions and answers
What does Mainstay do?
Intelligent system of record automating data and transactions for the residential real estate lifecycle.
How much has Mainstay raised?
Mainstay has raised $18 million in disclosed funding across 1 round tracked by OSH.
Who has invested in Mainstay?
Investors in Mainstay include Khosla Ventures, Era Ventures, Parker89, Stackpoint, Alpaca VC and 1 more.
When and where was Mainstay founded?
Mainstay was founded in 2024 and is based in San Francisco, US.
Timeline
Founded
Sources
- 1.Ex-Zillow VP’s startup Truelist acquired by Mainstay in $18M expansion of real estate AI — GeekWire, Sep 21, 2026