Fly.io

Over 3 million apps have launched on Fly.io, leveraging global Anycast load-balancing, zero-config private networking, hardware isolation, instant WireGuard VPN connections, and push-button deployments scaling to thousands of instances.

Latest funding

Series B+ · June 28, 2023

Amount not disclosed in a source on record.

All 3 rounds ↓

Website: fly.io.

X: @flydotio · 34,785 followers.

Categories: Robotics and hardware Developer tools and cloud.

Sectors: B2B, Infrastructure.

Stage: Series B+.

Based in: Chicago, United States.

Last round: Jun 28, 2023 · 1,233 days ago.

Team: 48 people on the team page.

On Recent Funding since: Sep 28, 2026.

Signals

X account@flydotio · created Feb 27, 2017 (9 years old) · 34,785 followers

Website registeredJul 15, 2004 (22 years old)

TIMELINE · MILESTONES

Fly.io | 1977 days from X account to first raise on record

@flydotio·2 rounds·1 signal before the first raise

One step per dated milestone. Pins are dated signals; hover the icons for dates.

Funding rounds

June 28, 2023
Series B+ · amount undisclosed
Source: fundraisingfox.com
July 28, 2022
Series A · amount undisclosed
Source: fundraisingfox.com
Winter 2020
YY Combinator · batch
Source: ycombinator.com
February 27, 2017
X account created
July 15, 2004
Website created

Investors

Companies like Fly.io

VVerda$189M Series B+ · Oct 2026
RRemedio$65M Series A · Apr 2026
TTogether AI$800M Series B+ · Jul 2026
BBuoyantSeries B+ · Mar 2024
LLambdaSeries B+ · Nov 2025
UUnikraft$6M Seed · Oct 2025

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/fly-io (get a free API key).