Mainstay
PrivateLast Round
Seed
Sep 16, 2026
Total Funding Raised
$62M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Mainstay is a real estate technology company that operates an AI-enabled market intelligence and transaction platform for the single-family rental industry.
Sector
Enterprise Software
Verticals
Business Intelligence, Data Integration, Data Visualization
Business Model
B2B
Customer Profile
Subscription SaaS, Data as a Service
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Mainstay Comparables
Compare Mainstay with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| CB Insights | 81% | |
| AlphaSense | 72% | |
| RealPage | 45% |
Mainstay Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Sep 16, 2026 | ||||
| Series A | Aug 1, 2024 |
Key People
Founding team and executive leadership
Mainstay Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Clocktower Ventures | Seed |
| Khosla Ventures | Seed, Series A |
| Stackpoint Ventures | Seed |
| FJ Labs | Seed |
| Alpaca | Seed |
| Inspired Capital | Series A |
| Parker89 | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 16, 2026
$18M raised with participation from Khosla Ventures.
- Aug 1, 2024
$25M round completed.
Recent news
Latest coverage and updates
- hiresSep 18, 2026
Mainstay hired Carey Armstrong as chief strategy officer on Sep 18th '26.
- acquiresSep 17, 2026
Mainstay Labs Inc. acquires Truelist, LLC. for $18M.
- receives_financingSep 16, 2026
Mainstay Labs Inc. received financing of $18M in growth capital on Sep 16th '26.
- acquiresSep 16, 2026
Mainstay Labs Inc. acquired Truelist, Inc. for $18M on Sep 16th '26.
Mainstay Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Mainstay's valuation, stock price, and market status.
Is Mainstay a public or private company?
Mainstay is a private company.
What is the current stock price of Mainstay?
Mainstay is a private company with no public stock price. No recent secondary market data is available.
How much is Mainstay worth (valuation)?
Valuation information for Mainstay is not publicly available.
Can I buy Mainstay stock?
Mainstay shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Mainstay's last funding round?
Mainstay's most recent funding round was Series A on August 1, 2024.
Who are the main investors in Mainstay?
Key investors in Mainstay include Khosla Ventures.
Will Mainstay IPO soon?
No public IPO plans have been announced for Mainstay.
How can I track Mainstay secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Mainstay's secondary market activity and sign up for updates.