Who invested in Landline

4 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.

Logistics

Raised 1 month ago

Funding summaryUpdated 26 Oct 2026

$14Mraised across 4 rounds since 2019, from 4 sources

$3.9MRound$2.7MVenture$1.4MRound$5.6MRound

Latest round: Round, $5.6MSept 2026
Step-upi: 3.9×
Investors: 6 (1 led)

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.

2020202120222023202420252026

$3.9MRound$2.7MVenture$1.4MRound$5.6MRound

First round: Round, $3.9M
Biggest round: $5.6M
Usual gap between rounds: 9 months

The rounds

Sept 2026
Round$5.6M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $5.6M sold, first sale Sept 2026
Mar 2026
Round$1.4M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $1.4M sold, first sale Mar 2026
Jul 2025
Venture$2.7M3 new2 returning
Source recordedSEC filing: $2.7M sold, first sale Jun 2025
Sept 2019
Round$3.9M3 new
Reported by TechCrunch

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.

Round2019Venture2025Round2026Round2026

Everyone who backed them

Upfront VenturesVC firm2rounds, led 1

Matchstick VenturesVC firm2rounds

Bossa InvestVC firm1round

Mucker CapitalVC firm1round

WndrCoPrivate equity1round

Tusk VenturesVC firm1round

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

Also claim to have backed them

This firm lists Landline as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.