# Sandbox funding: rounds and investors

> Sandbox has raised $45M across 2 rounds since 2015. Investors include Korea Development Bank and Industrial Bank of Korea. Every round with its source.

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

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

# Who invested in *Sandbox*

2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Advertising & Adtech

Funding summary Updated 26 Oct 2026

**$45M** raised across 2 rounds since 2015, from 2 sources

- **Latest round:** Series D, $45M Nov 2020
- **Investors:** 2

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2016 2017 2018 2019 2020

**?** Seed

**$45M** Series D

- **First round:** Seed
- **Biggest round:** $45M
- **Between rounds:** 5.3 years

## The rounds

- **Nov 2020** Series D **$45M** *2 new* [Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) [Industrial Bank of Korea](https://millionrounds.com/fund/industrial-bank-of-korea) Source recorded
- **Jul 2015** Seed **Amount undisclosed** No investor was named in the report. From a historical funding record

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Seed** 2015 **Series D** 2020 [Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) [Industrial Bank of Korea](https://millionrounds.com/fund/industrial-bank-of-korea)

## Everyone who backed them

[Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) Government **1** round

[Industrial Bank of Korea](https://millionrounds.com/fund/industrial-bank-of-korea) VC firm **1** round

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

## Quick answers about Sandbox

### Who invested in Sandbox?

Sandbox's investors include Korea Development Bank and Industrial Bank of Korea.

### How much has Sandbox raised?

Sandbox has raised $45M across 2 rounds since 2015. One round did not disclose an amount, so the total is a floor.

### When did Sandbox last raise?

Sandbox's most recent round was a Series D of $45M in Nov 2020.

### What was Sandbox's biggest round?

Its most recent round, $45M in Nov 2020, is also its largest on record.

### Who backed Sandbox first?

Sandbox's first round on record, in Nov 2020, was backed by Korea Development Bank and Industrial Bank of Korea.

### What stage is Sandbox at?

Sandbox's latest named round is a Series D, in Nov 2020.

### Where is Sandbox based?

Sandbox is based in the United States.

## Companies like Sandbox

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

[**Kevel** $75M · Oct 2026](https://millionrounds.com/company/kevel)[**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**Gradient** $24M · Oct 2026](https://millionrounds.com/company/gradient)[**Pipedrive** $90M · Sept 2026](https://millionrounds.com/company/pipedrive)[**7Pi** $125K · Sept 2026](https://millionrounds.com/company/7pi)[**Zeely** $8.8M · Sept 2026](https://millionrounds.com/company/zeely)

## Find investors like these

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