Fly.io
Fly.io builds infrastructure for AI agents and their applications. The Chicago-based company has raised $136M and employs 60 people.
The growth story
Fly.io grew from 14 to 60 employees between 2021 and 2026, raising $136M along the way, most recently a Series D in July 2026.
About
Fly.io develops computing infrastructure tailored for AI agents and the applications they create. The platform serves developers building AI-driven solutions.
The company has raised $136M, including a Series D round in July 2026. Its workforce of 60 spans engineering and other technical roles.
Founders and leadership
Engineering is Fly.io's largest function, with 31 employees. The company operates with a lean structure focused on technical roles.
The Fly.io org chart
Scott Johnston (CEO) leads 9 mapped leaders with 7 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 34 (+26% YoY), Information Technology 8 (0% YoY), Entrepreneurship 4 (0% YoY).
Talent flow
Fly.io hires primarily from technical backgrounds, with notable sources including Compose, NCC, and Perforce Puppet. Alumni have moved to companies like Databricks and Convex.
Most common previous employers of Fly.io staff: Compose (5), NCC (3), Perforce Puppet (2), IBM (2), TiDB, powered by PingCAP (1), Airbyte (1). Former Fly.io employees most often moved to Databricks (3), The Instrument (1), Commit Capital (1), Convex (1), Podii Consultants (1), Tigris Data (1).
Alumni worth knowing
The Fly.io mafia
Fly.io alumni have founded four companies, including Merritt AI, Techaro, and Overton. These startups collectively employ at least seven people.
4Darla Magdalene Shockley, was Engineering Manager until 2025Brad Gessler, was Developer Relations until 2024T Van Doren, was Staff Engineer until 2024Web traffic
Traffic mix: 69% direct, 13% search, 7% social, 1% paid.
What this company is made of
Most common skills at Fly.io: JavaScript (25), Git (21), Linux (21), Python (Programming Language) (21), PostgreSQL (19), Cascading Style Sheets (CSS) (18), HTML (17), Software Development (17).
Where the team actually sits
Fly.io people are concentrated in California, United States (5), Western Cape, South Africa (3), Nevada, United States (2), United States (2).
Search footprint
Fly.io attracts about 6,994 organic search visits a month, traffic worth roughly $50K a month if bought through ads. It gained 1,254 ranking keywords and lost 1,075 in the last period.
What employees say
- Compensation
- 5.00 / 5
- Career opportunities
- 5.00 / 5
- Senior management
- 5.00 / 5
- Work-life balance
- 5.00 / 5
Frequently asked
Fly.io has 60 employees as of September 2026.
Fly.io has raised $136M in total, most recently a Series D round in July 2026.
Scott Johnston (CEO) sits at the top of Fly.io's reporting structure, with 7 direct reports.
The most common previous employers of current Fly.io staff are Compose (5 people), NCC (3 people), Perforce Puppet (2 people).
Former Fly.io employees most often move to Databricks (3), The Instrument (1), Commit Capital (1).
At least 4 companies have a founder who previously worked at Fly.io, including Merritt AI, Techaro, Overton.
Fly.io attracts about 6,994 organic search visits a month, worth roughly $50K a month in equivalent ad spend.
The most common skills among Fly.io staff are JavaScript, Git, Linux, Python (Programming Language), PostgreSQL.
Fly.io staff are concentrated in California, United States (5), Western Cape, South Africa (3), Nevada, United States (2).
Fly.io has about 34 people in Engineering, up 26% over the past year, as of September 2026.
Fly.io has about 8 people in Information Technology, up 0% over the past year, as of September 2026.
Computed from 46 current and 68 former Fly.io profiles, as of September 2026. Source: Crustdata.
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