# MainStreet funding: rounds and investors

> MainStreet has raised across 1 round since 2025. Investors include Alumni Ventures, SV Angel and SignalFire. Every round with its source.

Source: https://millionrounds.com/company/mainstreet (Millionrounds; every figure on the page links to its filing or article)

United States · [Venture startup](https://millionrounds.com/companies)

# Who invested in *MainStreet*

One round we have observed, with the 5 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Financial Services

Raised 12 months ago

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2025, from 1 source

- **Latest round:** Venture Nov 2025
- **Investors:** 5

See who backed them

## The rounds

- **Nov 2025** Venture **Amount undisclosed** [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [SV Angel](https://millionrounds.com/fund/sv-angel) [SignalFire](https://millionrounds.com/fund/signalfire) [Gradient](https://millionrounds.com/fund/gradient-ventures) [Moxxie Ventures](https://millionrounds.com/fund/moxxie-ventures) Source recorded

## Everyone who backed them

[Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round

[SV Angel](https://millionrounds.com/fund/sv-angel) VC firm **1** round

[SignalFire](https://millionrounds.com/fund/signalfire) VC firm **1** round

[Gradient](https://millionrounds.com/fund/gradient-ventures) VC firm **1** round

[Moxxie Ventures](https://millionrounds.com/fund/moxxie-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=mainstreet).

## Quick answers about MainStreet

### Who invested in MainStreet?

MainStreet's investors include Alumni Ventures, SV Angel, SignalFire, Gradient and Moxxie Ventures.

### How much has MainStreet raised?

MainStreet has raised 1 round since 2025, none with a disclosed amount.

### When did MainStreet last raise?

MainStreet's most recent round was a Venture in Nov 2025.

### Who backed MainStreet first?

MainStreet's first round on record, in Nov 2025, was backed by Alumni Ventures, SV Angel and SignalFire and 2 others.

### What stage is MainStreet at?

MainStreet's latest named round is a Venture, in Nov 2025.

### Where is MainStreet based?

MainStreet is based in the United States.

## Companies like MainStreet

In the same sector, and raised in the last eighteen months.

[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Kalshi** $2.7B · Oct 2026](https://millionrounds.com/company/kalshi)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**CapitalOS** $52M · Oct 2026](https://millionrounds.com/company/capitalos)[**Platform Accounting Group** $355M · Oct 2026](https://millionrounds.com/company/platform-accounting-group)[**Ramp** $4.5B · Oct 2026](https://millionrounds.com/company/ramp)

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