EngFlow
EngFlow sells tools to speed up software builds and testing, with a platform that cuts cloud costs by 20-50% and processing time by 5-10x. The 63-person startup raised $22M in 2022 from investors including Andreessen Horowitz.
The growth story
EngFlow grew from 13 to 63 employees between 2021 and 2026, raising $22M along the way, most recently a Series A in November 2022.
About
EngFlow's platform helps developers compile and test code faster by distributing workloads across up to 100,000 remote cores. It works with major build systems like Bazel and CMake, targeting both startups and large enterprises.
The company was founded in 2020 by Bazel experts and has grown to 63 employees. Its Series A was led by Andreessen Horowitz, though headcount growth since the 2022 funding round isn't specified.
Founders and leadership
Engineering dominates with 37 staff, reflecting the technical nature of the build acceleration product. The team has a median tenure of 2 years, suggesting stable early hiring.
The EngFlow org chart
Helen Altshuler (Co-Founder and CEO) leads 16 mapped leaders with 2 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 29 (+16% YoY), Information Technology 8 (+60% YoY), Sales 7 (+17% YoY), Business Development 4 (0% YoY), Human Resources 3 (0% YoY).
Talent flow
One in three analyzed employees came from Google, with smaller talent pools from Lacework and financial firms. Alumni have gone to DevRev and back to Google, with minimal founder-led spinouts.
Most common previous employers of EngFlow staff: Google (20), Lacework (3), Cross River IQ (3), JPMorganChase (3), GitLab (2), Square (2). Former EngFlow employees most often moved to DevRev (1), JupiterOne (1), Early Warning (1), Kabilah (1), Google (1), Qarik, an Egen Company (1).
Alumni worth knowing
Web traffic
Traffic mix: 34% direct, 4% search, 0% social, 0% paid.
What this company is made of
Most common skills at EngFlow: Python (Programming Language) (36), Java (32), C++ (29), Software Development (27), Linux (24), Git (22), JavaScript (19), Bazel (19).
Where the team actually sits
EngFlow people are concentrated in California, United States (7), New York, United States (4), Capital District, Colombia (3), Greater Munich Metropolitan Area (3). 5 offices on record.
Search footprint
EngFlow attracts about 59 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 26 ranking keywords and lost 25 in the last period.
What employees say
- Compensation
- 4.00 / 5
- Career opportunities
- 3.50 / 5
- Senior management
- 3.50 / 5
- Work-life balance
- 3.50 / 5
Frequently asked
EngFlow has 63 employees as of September 2026.
EngFlow has raised $22M in total, most recently a Series A round in November 2022.
EngFlow was founded in 2020 by Helen Altshuler, Ulf Adams.
Helen Altshuler (Co-Founder and CEO) sits at the top of EngFlow's reporting structure, with 2 direct reports.
The most common previous employers of current EngFlow staff are Google (20 people), Lacework (3 people), Cross River IQ (3 people).
Former EngFlow employees most often move to DevRev (1), JupiterOne (1), Early Warning (1).
EngFlow attracts about 59 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among EngFlow staff are Python (Programming Language), Java, C++, Software Development, Linux.
EngFlow staff are concentrated in California, United States (7), New York, United States (4), Capital District, Colombia (3).
EngFlow has about 29 people in Engineering, up 16% over the past year, as of September 2026.
EngFlow has about 8 people in Information Technology, up 60% over the past year, as of September 2026.
Computed from 59 current and 21 former EngFlow profiles, as of September 2026. Source: Crustdata.
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