Pulumi
Pulumi sells an open-source infrastructure-as-code platform that lets engineers manage cloud infrastructure using programming languages. The 116-person company has raised $99M, including a Series C in October 2023.
The growth story
Pulumi grew from 55 to 116 employees between 2021 and 2026, raising $99M along the way, most recently a Series C in October 2023.
About
Pulumi's platform allows developers to define and manage cloud infrastructure using general-purpose programming languages instead of domain-specific configuration files. It competes with tools like Terraform by offering deeper integration with existing developer workflows.
The company has grown to 116 employees since its 2017 founding, with backing from Madrona and NEA. Its Series C suggests continued expansion despite the broader cloud infrastructure market slowdown.
Founders and leadership
Engineering makes up 42% of Pulumi's workforce (49 employees). The Seattle-based company has a flat structure typical of developer tools startups, with a median tenure of 2 years.
The Pulumi org chart
Joe Duffy (Founder, CEO) leads 29 mapped leaders with 11 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 59 (-19% YoY), Sales 12 (-8% YoY), Operations 7 (-22% YoY), Information Technology 6 (0% YoY), Marketing 5 (-29% YoY), Product Management 4 (+100% YoY).
Talent flow
Pulumi recruits heavily from Microsoft (12 hires) and AWS/Amazon (12 combined). Alumni frequently join infrastructure startups like Tailscale (9 departures) and Pinecone (4).
Most common previous employers of Pulumi staff: Microsoft (12), Amazon (6), Amazon Web Services (AWS) (6), Oracle (5), Auth0 (5), Cloudflare (4). Former Pulumi employees most often moved to Tailscale (9), Pinecone (4), GitHub (4), Apple (3), Komodor (3), OpenAI (3).
Alumni worth knowing
The Pulumi mafia
Pulumi alumni have founded at least 7 companies, including Samwise (12 staff) and Wack (10 staff). The startup has spawned more founder-led ventures than typical for its size.
7Matthew Jeffryes, was Principal Software Engineer until 2025Robbie McKinstry, was Senior Software Engineer until 2023Paul Stack, was Engineering Manager until 2022Alex Clemmer, was Engineer until 2020Marc Holmes, was Chief Sales & Marketing Officer until 2019Eron Wright, was Principal Software Engineer until 2025Web traffic
Traffic mix: 42% direct, 42% search, 2% social, 0% paid.
What this company is made of
Most common skills at Pulumi: Python (Programming Language) (41), JavaScript (37), Software Development (35), Amazon Web Services (AWS) (32), Git (31), SQL (31), Java (28), Cascading Style Sheets (CSS) (27).
Where the team actually sits
Pulumi people are concentrated in Washington, United States (18), California, United States (8), Pennsylvania, United States (5), Greater Seattle Area (4).
Search footprint
Pulumi attracts about 7,034 organic search visits a month, traffic worth roughly $35K a month if bought through ads. It gained 1,257 ranking keywords and lost 944 in the last period.
What employees say
- Compensation
- 4.20 / 5
- Career opportunities
- 3.60 / 5
- Senior management
- 3.60 / 5
- Work-life balance
- 4.10 / 5
Frequently asked
Pulumi has 116 employees as of September 2026.
Pulumi has raised $99M in total, most recently a Series C round in October 2023.
Pulumi was founded in 2017 by Joe Duffy, Eric Rudder.
Joe Duffy (Founder, CEO) sits at the top of Pulumi's reporting structure, with 11 direct reports.
The most common previous employers of current Pulumi staff are Microsoft (12 people), Amazon (6 people), Amazon Web Services (AWS) (6 people).
Former Pulumi employees most often move to Tailscale (9), Pinecone (4), GitHub (4).
At least 7 companies have a founder who previously worked at Pulumi, including Samwise, Wack, Swamp Club.
Pulumi attracts about 7,034 organic search visits a month, worth roughly $35K a month in equivalent ad spend.
The most common skills among Pulumi staff are Python (Programming Language), JavaScript, Software Development, Amazon Web Services (AWS), Git.
Pulumi staff are concentrated in Washington, United States (18), California, United States (8), Pennsylvania, United States (5).
Pulumi has about 59 people in Engineering, down 19% over the past year, as of September 2026.
Pulumi has about 12 people in Sales, down 8% over the past year, as of September 2026.
Computed from 94 current and 162 former Pulumi profiles, as of September 2026. Source: Crustdata.
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