# SparkPost funding: rounds and investors

> SparkPost has raised $21M across 2 rounds since 2016. Investors include Square 1 Bank and Wellington Financial. Every round with its source.

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

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

# Who invested in *SparkPost*

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.

Internet

Funding summary Updated 26 Oct 2026

**$21M** raised across 2 rounds since 2016, from 2 sources

**$10M** Round **$11M** Round

- **Latest round:** Round, $11M Mar 2017
- **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.

2017

**$10M** Round

**$11M** Round

- **First round:** Round, $10M
- **Biggest round:** $11M
- **Between rounds:** 4 months

## The rounds

- **Mar 2017** Round **$11M** *1 new* [Square 1 Bank](https://millionrounds.com/fund/square-1-bank) Reported by FinSMEs
- **Dec 2016** Round **$10M** *1 new* [Wellington Financial](https://millionrounds.com/fund/wellington-financial-lp) Reported by FinSMEs

## 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.

**Round** 2016 **Round** 2017 [Square 1 Bank](https://millionrounds.com/fund/square-1-bank) [Wellington Financial](https://millionrounds.com/fund/wellington-financial-lp)

## Everyone who backed them

[Square 1 Bank](https://millionrounds.com/fund/square-1-bank) Investment firm **1** round

[Wellington Financial](https://millionrounds.com/fund/wellington-financial-lp) Investment firm **1** round

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

## Quick answers about SparkPost

### Who invested in SparkPost?

SparkPost's investors include Square 1 Bank and Wellington Financial.

### How much has SparkPost raised?

SparkPost has raised $21M across 2 rounds since 2016.

### When did SparkPost last raise?

SparkPost's most recent round was an Undisclosed round of $11M in Mar 2017.

### What was SparkPost's biggest round?

Its most recent round, $11M in Mar 2017, is also its largest on record.

### Who backed SparkPost first?

SparkPost's first round on record, in Dec 2016, was backed by Wellington Financial.

### What stage is SparkPost at?

SparkPost's latest named round is an Undisclosed round, in Mar 2017.

### Where is SparkPost based?

SparkPost is based in the United States.

## Companies like SparkPost

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

[**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**Tolan** $30M · Oct 2026](https://millionrounds.com/company/tolan)[**Welltory** $4.0M · Oct 2026](https://millionrounds.com/company/welltory)[**Overtime** $33M · Oct 2026](https://millionrounds.com/company/overtime)[**1World Online** $25M · Sept 2026](https://millionrounds.com/company/1world-online)[**Luminary** $194M · Sept 2026](https://millionrounds.com/company/luminary)

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