LocalStack
LocalStack sells a cloud development platform that emulates AWS services for local testing, with 110 employees and $28M in funding. Its Series A in late 2024 included investors like CRV and Heavybit.
The growth story
LocalStack grew from 17 to 110 employees between 2021 and 2026, raising $28M along the way, most recently a Series A in November 2024.
About
LocalStack provides software that mimics AWS cloud services on developers' local machines, letting teams test applications offline before deployment. Enterprise and individual users adopt it to cut cloud costs and speed up development cycles.
The company reached 110 employees since its 2021 founding, with engineering making up nearly half its workforce. Its $28M Series A suggests strong investor confidence in cloud development tools, though headcount growth rates aren't disclosed.
Founders and leadership
Engineering dominates LocalStack's structure, accounting for 47 of 110 roles. The Zurich-based team has a median tenure of just one year, indicating rapid scaling or turnover.
The LocalStack org chart
Waldemar Hummer (Co-Founder and CTO/Co-CEO) leads 35 mapped leaders with 4 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 48 (-4% YoY), Information Technology 12 (+20% YoY), Sales 11 (+120% YoY), Customer Success and Support 5 (+150% YoY), Business Development 4 (0% YoY), Human Resources 4 (+100% YoY).
Talent flow
LocalStack recruits heavily from AWS (8 hires) and Anaconda (7), with Vienna University of Technology supplying the most alumni (7). Departures scatter thinly across industries, with no single destination claiming multiple hires.
Most common previous employers of LocalStack staff: Amazon Web Services (AWS) (8), Anaconda (7), Microsoft (5), Technische Universität Wien (5), Postman (4), IBM (4). Former LocalStack employees most often moved to A.P. Moller - Maersk (1), Arize AI (1), AbbVie (1), FlyRank AI (1), ImpactBuying (1), Blancco Technology (1).
Alumni worth knowing
Hiring now
Web traffic
Traffic mix: 46% direct, 38% search, 5% social, 0% paid.
What this company is made of
Most common skills at LocalStack: Python (Programming Language) (50), Amazon Web Services (AWS) (41), SQL (41), Linux (34), Java (34), Git (32), JavaScript (30), Software Development (30).
Where the team actually sits
LocalStack people are concentrated in Vienna, Austria (8), England, United Kingdom (6), United States (5), Ontario, Canada (5).
Search footprint
LocalStack attracts about 10,470 organic search visits a month, traffic worth roughly $22K a month if bought through ads. It gained 1,355 ranking keywords and lost 683 in the last period.
What employees say
- Compensation
- 4.70 / 5
- Career opportunities
- 4.60 / 5
- Senior management
- 4.70 / 5
- Work-life balance
- 4.60 / 5
Frequently asked
LocalStack has 110 employees as of September 2026.
LocalStack has raised $28M in total, most recently a Series A round in November 2024.
LocalStack was founded in 2021 by Waldemar Hummer, Gerta S., Thomas Rausch.
Waldemar Hummer (Co-Founder and CTO/Co-CEO) sits at the top of LocalStack's reporting structure, with 4 direct reports.
The most common previous employers of current LocalStack staff are Amazon Web Services (AWS) (8 people), Anaconda (7 people), Microsoft (5 people).
Former LocalStack employees most often move to A.P. Moller - Maersk (1), Arize AI (1), AbbVie (1).
LocalStack attracts about 10,470 organic search visits a month, worth roughly $22K a month in equivalent ad spend.
The most common skills among LocalStack staff are Python (Programming Language), Amazon Web Services (AWS), SQL, Linux, Java.
LocalStack staff are concentrated in Vienna, Austria (8), England, United Kingdom (6), United States (5).
LocalStack has about 48 people in Engineering, down 4% over the past year, as of September 2026.
LocalStack has about 12 people in Information Technology, up 20% over the past year, as of September 2026.
Computed from 99 current and 29 former LocalStack profiles, as of September 2026. Source: Crustdata.
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