# Seaborn Networks funding: rounds and investors

> Seaborn Networks has raised $519M across 3 rounds since 2014. Investors include Santander and Intesa Sanpaolo. Every round with its source.

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

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

# Who invested in *Seaborn Networks*

3 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.

Telecoms

Funding summary Updated 26 Oct 2026

**$519M** raised across 3 rounds since 2014, from 3 sources

**$17M** Venture **$2.2M** Venture **$500M** Debt

- **Latest round:** Debt, $500M Jan 2016
- **Step-up i:** 224.7×
- **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.

2014 2015 2016

**$17M** Venture

**$2.2M** Venture

**$500M** Debt

- **First round:** Venture, $17M
- **Biggest round:** $500M
- **Usual gap between rounds:** 21 months

## The rounds

- **Jan 2016** Debt **$500M** *2 new* [Santander](https://millionrounds.com/fund/santander) [Intesa Sanpaolo](https://millionrounds.com/fund/intesa-sanpaolo) Source recorded SEC filing: $2.2M sold, first sale Sept 2015
- **Oct 2015** Venture **$2.2M** No investor was named in the report. From a historical funding record SEC filing: $2.2M sold, first sale Sept 2015
- **Jan 2014** Venture **$17M** No investor was named in the report. From a historical funding record SEC filing: $17M sold, first sale Jan 2014

## 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.

**Venture** 2014 **Venture** 2015 **Debt** 2016 [Santander](https://millionrounds.com/fund/santander) [Intesa Sanpaolo](https://millionrounds.com/fund/intesa-sanpaolo)

## Everyone who backed them

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

[Intesa Sanpaolo](https://millionrounds.com/fund/intesa-sanpaolo) VC firm **1** round

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

## Quick answers about Seaborn Networks

### Who invested in Seaborn Networks?

Seaborn Networks's investors include Santander and Intesa Sanpaolo.

### How much has Seaborn Networks raised?

Seaborn Networks has raised $519M across 3 rounds since 2014.

### When did Seaborn Networks last raise?

Seaborn Networks's most recent round was a Debt of $500M in Jan 2016.

### What was Seaborn Networks's biggest round?

Its most recent round, $500M in Jan 2016, is also its largest on record.

### Who backed Seaborn Networks first?

Seaborn Networks's first round on record, in Jan 2016, was backed by Santander and Intesa Sanpaolo.

### What stage is Seaborn Networks at?

Seaborn Networks's latest named round is a Debt, in Jan 2016.

### Where is Seaborn Networks based?

Seaborn Networks is based in the United States.

## Companies like Seaborn Networks

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

[**TruAgents** $3.4M · Oct 2026](https://millionrounds.com/company/truagents)[**Qualitate** $32M · Oct 2026](https://millionrounds.com/company/qualitate)[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)[**Hubble Network** $270M · Sept 2026](https://millionrounds.com/company/hubble-network)[**Delos Data** $100M · Sept 2026](https://millionrounds.com/company/delos-data)[**Celero Communications** $375M · Sept 2026](https://millionrounds.com/company/celero-communications)

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