Chain Reaction Ltd.
Chain Reaction develops specialized processors for encrypted data computation, enabling operations like Fully Homomorphic Encryption (FHE) without decrypting data. The semiconductor startup has raised $115M, including a Series C in February 2023, and employs 99 people.
The growth story
Chain Reaction Ltd. grew from 93 to 99 employees between 2022 and 2026, raising $115M along the way, most recently a Series C in February 2023.
About
Chain Reaction builds custom processors that perform computations on encrypted data, a critical capability for industries handling sensitive information like healthcare and finance. Its architecture supports FHE, which maintains encryption throughout processing.
The company has attracted $115M in funding, with backing from investors including BlackRock and Intel's venture arm. While headcount growth data isn't available, its 99-person team suggests steady scaling since its 2019 founding.
Founders and leadership
Engineering dominates Chain Reaction's workforce, accounting for 30% of staff. The company maintains a relatively flat structure with a median tenure of 2 years, indicating active hiring cycles.
The Chain Reaction Ltd. org chart
Alon Webman (Co Founder & CEO) leads 27 mapped leaders with 6 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 36 (+20% YoY), Business Development 12 (-8% YoY), Information Technology 8 (0% YoY), Quality Assurance 7 (-30% YoY), Operations 7 (+40% YoY), Marketing 4 (+33% YoY).
Talent flow
Chain Reaction recruits heavily from semiconductor leaders, with Intel (10 hires), Mellanox (8), and NVIDIA (5) as top sources. Many engineers come from Israeli institutions like Technion (10 alumni) and have military or government tech experience.
Most common previous employers of Chain Reaction Ltd. staff: Intel (10), Mellanox Technologies (8), NVIDIA (5), Israel Defense Forces (4), TSMC (3), Ministry of Foreign Affairs of Israel (2). Former Chain Reaction Ltd. employees most often moved to Amazon Web Services (AWS) (6), NVIDIA (5), Cisco (3), Microsoft (2), Mobileye (2), SureMark Digital (1).
Alumni worth knowing
Web traffic
Traffic mix: 49% direct, 33% search, 6% social, 1% paid.
What this company is made of
Most common skills at Chain Reaction Ltd.: Python (Programming Language) (31), C (Programming Language) (26), C++ (21), Linux (20), Debugging (18), C# (15), MATLAB (15), Management (14).
Where the team actually sits
Chain Reaction Ltd. people are concentrated in Israel (24), North District, Israel (9), Tel Aviv District, Israel (7), Center District, Israel (6). 3 offices on record.
Search footprint
Chain Reaction Ltd. attracts about 32 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 10 ranking keywords and lost 4 in the last period.
What employees say
- Compensation
- 3.30 / 5
- Career opportunities
- 2.80 / 5
- Senior management
- 2.60 / 5
- Work-life balance
- 3.40 / 5
Frequently asked
Chain Reaction Ltd. has 99 employees as of September 2026.
Chain Reaction Ltd. has raised $115M in total, most recently a Series C round in February 2023.
Chain Reaction Ltd. was founded in 2019 by Alon Webman.
Alon Webman (Co Founder & CEO) sits at the top of Chain Reaction Ltd.'s reporting structure, with 6 direct reports.
The most common previous employers of current Chain Reaction Ltd. staff are Intel (10 people), Mellanox Technologies (8 people), NVIDIA (5 people).
Former Chain Reaction Ltd. employees most often move to Amazon Web Services (AWS) (6), NVIDIA (5), Cisco (3).
Chain Reaction Ltd. attracts about 32 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among Chain Reaction Ltd. staff are Python (Programming Language), C (Programming Language), C++, Linux, Debugging.
Chain Reaction Ltd. staff are concentrated in Israel (24), North District, Israel (9), Tel Aviv District, Israel (7).
Chain Reaction Ltd. has about 36 people in Engineering, up 20% over the past year, as of September 2026.
Chain Reaction Ltd. has about 12 people in Business Development, down 8% over the past year, as of September 2026.
Computed from 60 current and 77 former Chain Reaction Ltd. profiles, as of September 2026. Source: Crustdata.
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