S
Source Defense
Defence · Beersheba, Israel · Founded 2014
Uses a first-of-its-kind, real-time sandbox isolation technology to provide a unique client-side website security solution focused on preventing malicious activity originating from website supply… MoreLess
Source Defense is a cybersecurity company that specializes in client-side security for websites. The company provides a real-time solution to detect, protect, and prevent threats that originate from JavaScript, a common component in web development. These threats include client-side injected malware, which can lead to data breaches and other security incidents. By focusing on the client-side, Source Defense addresses a critical vulnerability area that is often overlooked by traditional security measures.
The company's services are targeted towards a range of industries that handle sensitive customer data and have a significant online presence. These include the financial services, online retail, healthcare, travel, and media sectors. The business model is likely based on a subscription service for its cloud-based web application security platform, providing ongoing protection and updates to its clients.
Source Defense has demonstrated significant growth and investor confidence, having raised $47.5 million in funding over four rounds. The company was founded in 2014 and has established itself as a key player in the web application security market.
Keywords: client-side security, web application security, javascript security, threat detection, malware prevention, data breach prevention, cybersecurity, financial services security, retail security, healthcare security.
Company overview
Source Defense company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2014
- Headquarters
- Beersheba, Israel
- Employees
- 49
- Open positions
- None listed
- Dealroom signal
- 77.1
Valuation & funding
Source Defense funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES BOther financing | Apr 2022 | $27M | $108M | Global Brain Corporation · Jerusalem Venture Partners · Capital One Ventures · AllegisCyber Capital | ↗ |
| SERIES AOther financing | May 2020 | $11M | $42M | Jerusalem Venture Partners · Capital One · Connecticut Innovations · AllegisCyber Capital | ↗ |
| SERIES AOther financing | Sep 2018 | $9.1M | $36M | AllegisCyber Capital | — |
| SEEDOther financing | Nov 2017 | $0 | — | Undisclosed | — |
| SERIES AOther financing | Sep 2014 | $10M | $40M | Jerusalem Venture Partners · Connecticut Innovations | — |
Financials
Revenue and workforce over time
Available revenue and workforce history. Fields without reported data are omitted.
| Year | Revenue | Growth | Employees |
|---|---|---|---|
| 2026 | $7.3M | 0% | 49 |
| 2025 | $7.3M | 0% | 46 |
| 2024 | $7.3M | 0% | 45 |
| 2023 | $7.3M | 0% | 46 |
| 2022 | $7.3M | +48% | 48 |
| 2021 | $4.9M | +19.5% | 48 |
| 2020 | $4.1M | — | 47 |
Growth signals
Source Defense website traffic
Latest recorded traffic for Source Defense is 4.5K monthly website visits, up 9.8% over the last three months. Source Defense's team grew 6.5% over the past year.
Hiring
Open positions at Source Defense
Current openings linked to this company in Dealroom.
Comparisons
Source Defense compared with similar companies
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Talent graph
Source Defense's talent
Source: Dealroom Talent Intelligence.
Investors
8 investors on Source Defense's cap table
Sourced from Dealroom's funding and investor records.








Global footprint
Where Source Defense has talent and traffic
team presence
In the news
Latest news about Source Defense
Recent press, funding announcements, and product moves mentioning Source Defense — open to read from the original sources.
Market sentiment
What the market is saying about Source Defense
An AI-synthesized read of the highest-engagement posts about Source Defense on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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