# Underdog Fantasy funding: rounds and investors

> Underdog Fantasy has raised $70M across 1 round since 2025. Investors include Spark Capital, BlackRock and MANTIS Venture Capital. Every round with its source.

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

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

# Who invested in *Underdog Fantasy*

One round we have observed, with the 3 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.

Gaming Sports

Follow Underdog Fantasy and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Funderdog-fantasy)

Funding summary Updated 5 Nov 2026

**$70M** raised across 1 round since 2025, from 2 sources

- **Latest round:** Series C, $70M Mar 2025
- **Led by:** Spark Capital
- **Investors:** 3 (1 led)

See who backed them

## The rounds

- **Mar 2025** Series C **$70M** [Spark Capital](https://millionrounds.com/fund/spark-capital) Lead [BlackRock](https://millionrounds.com/fund/blackrock) [MANTIS Venture Capital](https://millionrounds.com/fund/mantis-venture-capital) Reported by AlleyWatch and 1 other

## Everyone who backed them

[Spark Capital](https://millionrounds.com/fund/spark-capital) VC firm **1** round, led 1

[BlackRock](https://millionrounds.com/fund/blackrock) Asset manager **1** round

[MANTIS Venture Capital](https://millionrounds.com/fund/mantis-venture-capital) VC firm **1** round

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

## Also claim to have backed them

These 8 firms list Underdog Fantasy as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Darren Herman](https://millionrounds.com/fund/darren-herman) Angel Per its own site

[Fortius Ventures](https://millionrounds.com/fund/fortius-ventures) VC firm Per its own site

[HBSE Ventures](https://millionrounds.com/fund/hbse-ventures) VC firm Per its own site

[Acies Investments](https://millionrounds.com/fund/acies-investments) VC firm Per its own site

[Backwards Capital](https://millionrounds.com/fund/backwards-capital) VC firm Per its own site

[Darco Capital](https://millionrounds.com/fund/darco-capital) Family office Per its own site

[Realm Capital Ventures](https://millionrounds.com/fund/realm-capital-ventures) VC firm Per its own site

[Switchboard Ventures](https://millionrounds.com/fund/switchboard-ventures) Venture studio Per its own site

## Quick answers about Underdog Fantasy

### Who invested in Underdog Fantasy?

Underdog Fantasy's investors include Spark Capital, BlackRock and MANTIS Venture Capital. Spark Capital led its latest round.

### How much has Underdog Fantasy raised?

Underdog Fantasy has raised $70M across 1 round since 2025.

### When did Underdog Fantasy last raise?

Underdog Fantasy's most recent round was a Series C of $70M in Mar 2025, led by Spark Capital.

### What was Underdog Fantasy's biggest round?

Its most recent round, $70M in Mar 2025, is also its largest on record.

### Who backed Underdog Fantasy first?

Underdog Fantasy's first round on record, in Mar 2025, was backed by Spark Capital, BlackRock and MANTIS Venture Capital.

### What stage is Underdog Fantasy at?

Underdog Fantasy's latest named round is a Series C, in Mar 2025.

### Where is Underdog Fantasy based?

Underdog Fantasy is based in the United States.

### Who led Underdog Fantasy's rounds?

Spark Capital led the Series C in 2025.

## Companies like Underdog Fantasy

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

[**Pathfinder** $13M · Nov 2026](https://millionrounds.com/company/pathfinder)[**Plato** $40M · Oct 2026](https://millionrounds.com/company/plato)[**Homa** $5.0M · Oct 2026](https://millionrounds.com/company/homa)[**Notey** $3.0M · Oct 2026](https://millionrounds.com/company/notey)[**Gardens Interactive** $35M · Oct 2026](https://millionrounds.com/company/gardens-interactive)[**Overtime** $33M · Oct 2026](https://millionrounds.com/company/overtime)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app