8 Best Microblogging Startups to Watch in 2025

The Definitive Seedtable Ranking of Microblogging Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 8 start-ups with an aggregate funding of $34.7m. The average funding per company in this subset is $4.3m.

Last update to the database: Feb 18, 2025. See changelog.

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Koo logo

Koo

Koo App is a social networking platform headquartered in India that allows users to post audio and video.

1

Funding Rounds

$30.0m

Money raised

Formspring logo

Formspring

Formspring is a company founded in 2009 by Ade Olonoh.

2

Funding Rounds

$2.8m

Money raised

Mob.ly logo

Mob.ly

Mob.ly is a San Francisco-based company founded by Yishai Lerner.

1

Funding Rounds

$1.1m

Money raised

Chatterous logo

Chatterous

Chatterous offers communications services platform for group chatting via web, IM, email and mobile phones. It participated in the W08 cohort of Y Combinator.

1

Funding Rounds

Soup.io logo

Soup.io

Soup.io is a microblogging site founded in 2007 by Florian Hufsky, Lukas Fittl and Christopher Clay.

1

Funding Rounds

$41.1k

Money raised

Fastnote logo

Fastnote

Fastnote is a company founded in 2010 by Richard Shaffner, Louis Shaffner and Warren Hart.

2

Funding Rounds

$800.0k

Money raised

Pownce logo

Pownce

Pownce is a company founded in 2007 by Kevin Rose.

1

Funding Rounds

Pensqr logo

Pensqr

Pensqr is a microblogging company founded by Bassem wahid.

1

Funding Rounds

$10.0k

Money raised