Who invested in Costello?
Costello's investors include Social Capital, Service Provider Capital, M25, Collina and Dundee, and 2 more on record.
United States · Seed startup
Funding summaryUpdated 26 Oct 2026
$3.1Mraised across 2 rounds since 2017, from 2 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by FinSMEsSEC filing: $1.4M sold, first sale Mar 2018
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Costello's investors include Social Capital, Service Provider Capital, M25, Collina and Dundee, and 2 more on record.
Costello has raised $3.1M across 2 rounds since 2017.
Costello's most recent round was a Seed of $2.1M in Jun 2018.
Its most recent round, $2.1M in Jun 2018, is also its largest on record.
Costello's first round on record, in Sept 2017, was backed by Service Provider Capital, M25 and Dundee Venture Capital/ Elevate.
Costello's latest named round is a Seed, in Jun 2018.
Costello is based in the United States.
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