Mainstay
PrivateLast Round
M&A
Mar 24, 2026
Total Funding Raised
$26.45M
Company Overview
Mainstay operates in Enterprise Software and is based in Boston, Massachusetts. Its latest recorded funding round was a Series B round in February 2021.
Mainstay is an educational software company that provides an AI-powered engagement platform designed to support students and employees through behaviorally intelligent chatbots.
Sector
Enterprise Software
Verticals
NLP & Conversational AI, Customer Experience, Vertical SaaS
Business Model
B2B
Customer Profile
Subscription SaaS
AI Layer
Application
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 |
|---|---|---|
| EdSights | 92% | |
| Element451 | 86% | |
| GeckoEngage | 85% |
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Mainstay Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| M&A | Mar 24, 2026 | ||||
| Series B | Feb 16, 2021 | ||||
| Series A | Jan 28, 2020 | ||||
| Seed | Jan 11, 2017 |
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Key People
Founding team and executive leadership
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Mainstay Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| The Kresge Foundation | Series B |
| Techstars | Seed |
| Bisk Ventures | Seed |
| Salesforce Ventures | Series B, Series A |
| Reach Capital | Series A, Seed |
| Rethink Education | Series A, Series B |
| Google Assistant Investments | Series B, Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 14, 2025
Added Tarleton State as a new customer.
- Feb 16, 2021
$16M round led by Rethink Education.
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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.
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Frequently 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, so its shares have no public market price. Caplight tracks Mainstay's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
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.
When was Mainstay's last funding round?
Mainstay's most recent funding round was M&A on March 24, 2026.
Who are the main investors in Mainstay?
Key investors in Mainstay include Reach Capital, Rethink Education, Relay Ventures, Rethink Education, University 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 in Mainstay's shares on secondary markets.