Artemis Security
Artemis Security sells AI-powered cybersecurity software that detects and contains threats while reducing data storage costs. The New York-based company has raised $70M in Series A funding and employs 52 people.
The growth story
Artemis Security grew from 1 to 52 employees between 2024 and 2026, raising $70M along the way, most recently a Series A in April 2026.
About
Artemis Security develops cybersecurity software that uses AI to identify and respond to threats in real time. Its system minimizes data storage costs by only streaming critical logs and retrieving others as needed, while continuously adapting to new threats and environmental changes. The company targets businesses needing advanced protection against AI-driven cyberattacks.
Founded in 2025, Artemis Security raised $70M in Series A funding in April 2026 from investors including Felicis and First Round Capital. Its 52-person team includes engineers from companies like Abnormal AI and Google.
Founders and leadership
Engineering is Artemis Security's largest function, with 18 employees. The company has a median tenure of 1 year, suggesting rapid team growth or turnover.
Departments, and which ones grew
Headcount by function: Engineering 15 (+650% YoY), Entrepreneurship 11 (+450% YoY), Military and Protective Services 4 (+300% YoY).
Talent flow
Artemis Security's team comes primarily from cybersecurity and tech companies, with Abnormal AI, Twitter, and Google being top sources. Alumni have moved to firms like Two Sigma and Columbia University.
Most common previous employers of Artemis Security staff: Abnormal AI (5), Twitter (3), TrueMotion (acquired by Cambridge Mobile Telematics) (3), Google (3), IBM (2), Reco (2). Former Artemis Security employees most often moved to Two Sigma (1), Columbia University (1).
Hiring now
What this company is made of
Most common skills at Artemis Security: Leadership (22), Python (Programming Language) (16), Microsoft Excel (15), Microsoft Office (12), Public Speaking (12), Customer Service (12), Management (12), Java (11).
Where the team actually sits
Artemis Security people are concentrated in New York, United States (21), New York City Metropolitan Area (6), Texas, United States (3), United States (3).
Search footprint
Artemis Security attracts about 40 organic search visits a month, traffic worth roughly $2K a month if bought through ads. It gained 21 ranking keywords and lost 6 in the last period.
Frequently asked
Artemis Security has 52 employees as of September 2026.
Artemis Security has raised $70M in total, most recently a Series A round in April 2026.
Artemis Security was founded in 2025 by Shachar Hirshberg, Dan Shiebler.
The most common previous employers of current Artemis Security staff are Abnormal AI (5 people), Twitter (3 people), TrueMotion (acquired by Cambridge Mobile Telematics) (3 people).
Former Artemis Security employees most often move to Two Sigma (1), Columbia University (1).
Artemis Security attracts about 40 organic search visits a month, worth roughly $2K a month in equivalent ad spend.
The most common skills among Artemis Security staff are Leadership, Python (Programming Language), Microsoft Excel, Microsoft Office, Public Speaking.
Artemis Security staff are concentrated in New York, United States (21), New York City Metropolitan Area (6), Texas, United States (3).
Artemis Security has about 15 people in Engineering, up 650% over the past year, as of September 2026.
Artemis Security has about 11 people in Entrepreneurship, up 450% over the past year, as of September 2026.
Computed from 40 current and 3 former Artemis Security profiles, as of September 2026. Source: Crustdata.
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