Who invested in WeatherXM

3 rounds we have observed, with the 6 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.

IT Services

Funding summaryUpdated 26 Oct 2026

$7.7Mraised across 3 rounds since 2015, from 3 sources

$12KGrant$8KGrant$7.7MSeries A

Latest round: Series A, $7.7MMay 2024
Step-upi: 947.8×
Investors: 6

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.

20152017201920212023

$12KGrant$8KGrant$7.7MSeries A

First round: Grant, $12K
Biggest round: $7.7M
Usual gap between rounds: 8.8 years

The rounds

May 2024
Series A$7.7M6 new
Source recorded
Jul 2015
Grant$8K
No investor was named in the report.
From a historical funding record
Jan 2015
Grant$12K
No investor was named in the report.
From a historical funding record

Founders and team

From WeatherXM's own website: 3 founders.

Manolis NikiforakisCEO & Co-founder

Nikos TsiligaridisCo-founder & Head of Hardware

Stratos TheodorouCo-founder & Head of Software

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.

Grant2015Grant2015Series A2024

Everyone who backed them

Alumni VenturesVC firm1round

SOSVVC firm1round

ArcaVC firm1round

Borderless CapitalAccelerator1round

Protocol LabsCorporate VC1round

FactionVC firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 4 firms list WeatherXM 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.