Q
Qingsong
Qingsong innovative self-service SaaS platform helps enterprises rapidly deploy DDoS cloud-based protection services
About Qingsong
Founded on May 8, 2014, Qingsong (Beijing) Technology Co., Ltd., operating under the brand Qingsong Cloud Security (青松云安全), functions as a specialized internet DDoS defense service provider in the enterprise security sector. The company is headquartered in Beijing and was established by its legal representative, Sun Dawei, who maintains a significant ownership stake of 30.43%.
Qingsong is positioned within the cloud security market, delivering robust DDoS cloud defense and fully managed defense services. The company's business model is centered on a SaaS framework, providing enterprise-level security solutions to a diverse client base that includes cloud service providers, internet data centers (IDCs), and other corporations requiring network security. Revenue is generated by offering these specialized security services designed to protect clients' internet-facing applications and infrastructure from complex cyber threats.
The core service offering is the Qingsong Anti-DDoS system, a comprehensive security solution. This platform provides not only DDoS mitigation but also a suite of related security capabilities. These include application attack defense, Web Application Firewall (WAF) rule customization, website vulnerability scanning, internal network asset management, and security operations monitoring. A key feature is the open and shared nature of its security capabilities, allowing clients like cloud service providers and data centers to integrate these defenses into their own offerings through a security alliance model. The company successfully completed a strategic financing round in 2017 to fuel its growth and technological development.
Source: Dealroom company dataKnowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES DOther financing | Sep 2015 | $110M | $440M | Baidu · Microsoft · Qualcomm · Fidelity Investments | — |
| SERIES AOther financing | Aug 2015 | $8.8M | $35M | Microsoft for Startups · Vertex Holdings | — |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Qingsong is 370 monthly website visits, up 1750% over the last three months. Qingsong's team grew 0% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A2 investors entered at this stage
Vertex Holdings
Microsoft for Startups
Series B and later10 investors entered at this stage
Union Square Ventures
NEA
Venrock
Pelion Venture Partners
Greenspring Associates
BaiduMicrosoft
Qualcomm
Fidelity Investments
Alphabet | Google
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Qingsong on X, ranked by likes and reposts, corporate channels excluded.
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
See Qingsong’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.






