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Mainstay

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Boston, United StatesFounded 2014Edtech
Valuation $50–100M Last recorded · 2021
Revenue $10–50M Latest reported FY
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Mainstay and the history behind them.

About Mainstay

AdmitHub is a pioneering company in the higher education sector, offering an AI-driven mobile messaging platform designed to enhance student success. The company serves colleges and universities across the United States, helping them to improve student engagement, boost enrollment, and support retention. AdmitHub's core product is an AI advisor that provides 24/7 conversational support to students, guiding them through the complexities of college life. This platform leverages artificial intelligence to deliver personalized, timely, and relevant information to students, ensuring they receive the support they need when they need it most.

AdmitHub operates in the higher education market, targeting institutions that are looking to improve their student support services and outcomes. The business model is primarily subscription-based, with colleges and universities paying for access to the platform and its features. Additional revenue streams may include consulting services and customized solutions tailored to the specific needs of individual institutions.

The company makes money by offering its AI platform on a subscription basis, providing ongoing support and updates to its clients. This recurring revenue model ensures a steady income stream while allowing AdmitHub to continuously improve and expand its services.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2014
Headquarters
Boston, United States
Employees
90
Open positions
None listed
Dealroom signal
64.8/100
Industry
Education
Sub-industry
Learning Tools and Resources
Sector
Edtech, Higher Education, Virtual Assistant, Corporate Learning
Business model
SaaS
Client focus
b2b

Funding history

8 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITION✓Exit Mar 2026 $0 — Lemnis ↗
SERIES B✓Equity / VC Feb 2021 $14M $56M Kresge foundation · Rethink Capital Partners · Education Credit Management Company —
Showing the latest 2 of 8 recorded eventsBook a demo for the full funding history →

Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025
2024
2023
2022
2021
2020 —
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Growth signals

Mainstay website traffic

Latest recorded traffic for Mainstay is 24K monthly website visits, up 788.9% over the last three months. Mainstay's team declined 1.1% over the past year.

Latest monthly visits24K 3-month web change+788.9% 1-year team growth-1.1%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

21 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed12 investors entered at this stage

Series A4 investors entered at this stage

  • Rethink Capital Partners
  • Salesforce Ventures
  • Kresge foundation
  • Education Credit Management Company

Other known investors5 additional known investors

Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
2 countries with
team presence
🇺🇸 United States97.6%
🇬🇧 United Kingdom2.4%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Mainstay on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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