M
MainStreet
Helps startups and small businesses identify and claim R&D tax credits and government incentives using AI-driven technology
About MainStreet
MainStreet is a financial technology startup that operates in the business finance sector. The company specializes in identifying and claiming tax credits for businesses, leveraging artificial intelligence (AI) technology to streamline the process. MainStreet's primary clients are businesses of all sizes that are looking to maximize their savings through tax credits.
The company's business model revolves around using its proprietary AI technology to search through over 200 tax credits to find those that best suit a client's business. Once a business qualifies for certain tax credits, MainStreet takes over the process of claiming these credits, thereby saving the client time and effort. The company generates revenue by charging a fee for its services.
MainStreet's team of experts, which includes in-house Certified Public Accountants (CPAs), tax code specialists, and business founders, provides support throughout the tax credit claiming process. The company prides itself on its compliance with Internal Revenue Service (IRS) guidelines, ensuring that all tax credit claims are accurate.
The company has a strong track record, with none of the thousands of companies it has helped having been audited. MainStreet's services are designed to provide businesses with peace of mind, freeing them up to focus on building their businesses while MainStreet handles their tax credits.
Source: Dealroom company dataAt a glance
- Status
- Acquired
- Founded
- 2019
- Headquarters
- San Jose, United States
- Employees
- 65
- Open positions
- None listed
- Dealroom signal
- 81.2/100
- Industry
- Fintech
- Sub-industry
- Financial Management Solutions
- Sector
- Fintech, Accounting, Corporate Finance, Tax, Core AI, SME, Financial Strategy, Legal, Tax and Accounting, AI Applications
- Technology
- Artificial Intelligence
- Business model
- SaaS
- Client focus
- b2b
- Investment activity
- 1 company, latest Oct 2025
- Capital deployed
- —
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITIONOther financing | May 2025 | $0 | — | Employer.com | ↗ |
| SERIES BOther financing | Jan 2022 | — | — | Alumni Ventures | — |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for MainStreet is 6.5K monthly website visits, down 67.5% over the last three months. MainStreet's team grew 0% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed5 investors entered at this stage
Jackson Moses
SV Angel
Alumni Ventures
Shrug Capital
Basecamp Fund
Series A3 investors entered at this stage
SignalFire
Adam Bain
Sound Ventures
Other known investors1 additional known investor
Employer.com
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about MainStreet 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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