Upwind Secures $400 Million Series C at $3.8 Billion Valuation Amidst Datadog Acquisition Attempt.

Upwind, a San Francisco-based startup specializing in leveraging artificial intelligence to secure complex cloud infrastructure, has successfully closed a significant $400 million Series C funding round. This latest infusion of capital values the company at an impressive $3.8 billion. The round was spearheaded by Bessemer Ventures, a prominent venture capital firm known for its investments in innovative technology companies, and saw continued participation from its existing strategic backers, including Greylock Partners and Craft Ventures. This substantial funding round underscores strong investor confidence in Upwind’s technology and its pivotal role in addressing the escalating challenges of cloud security in an AI-driven landscape.

The announcement of this Series C round comes just nine months after Upwind’s previous financing, a $250 million round that had valued the company at $1.5 billion. This rapid and substantial increase in valuation, more than doubling in less than a year, highlights the accelerated growth trajectory and market demand for Upwind’s solutions. The startup’s ability to attract such significant investment in a relatively short period reflects both its technological prowess and its strategic positioning within the critical cybersecurity sector. The market’s recognition of Upwind’s potential to become a leader in securing dynamic cloud environments is evident in these successive, high-value funding rounds.

Interestingly, the path to securing this fresh funding was not entirely smooth. The deal, which had been under discussion for several months, reportedly faced a critical juncture when Datadog, a publicly traded company known for its comprehensive observability tools that monitor how software runs, made an attempt to acquire Upwind. According to a source familiar with the situation, Datadog’s offer did not propose a premium above the $3.8 billion valuation that had already been established by venture capital investors during the Series C negotiations. Consequently, Upwind’s leadership made the strategic decision to remain an independent entity, signaling a strong belief in its long-term growth potential and its ability to surpass this valuation in the future. This decision to forgo an immediate acquisition underscores the company’s confidence in its innovative technology, market position, and the broader opportunities within the evolving cybersecurity landscape.

Upwind, a relatively young company at four years old, has experienced remarkable growth, driven by the increasing prevalence and sophistication of AI-driven cybersecurity threats. The company has demonstrated a consistent ability to expand its revenue streams, reportedly adding between $20 million and $30 million in annualized recurring revenue (ARR) each quarter. Based on this robust performance, Upwind is projected to conclude the year with approximately $90 million in ARR. This rapid financial scaling is a key indicator for investors, signaling healthy customer adoption and strong demand for its cloud security offerings.

The valuation assigned to Upwind by both the venture capital firms and Datadog—exceeding 40 times its forecast ARR—is a notable metric within the software industry. Annualized Recurring Revenue (ARR) is a widely accepted yardstick for pricing software companies, reflecting the predictable revenue stream generated from subscriptions or long-term contracts. While a multiple of 40x ARR is considered high, reflecting strong investor confidence in its growth prospects and market potential, it is still positioned below the valuation multiples observed for some other fast-growing cybersecurity startups. For instance, Cyera, another prominent cybersecurity company, was valued at an impressive 80 times its ARR earlier this year, as reported by TechCrunch. This comparison provides valuable context, indicating that while Upwind’s valuation is robust, the market for cutting-edge cybersecurity solutions can support even higher multiples for companies demonstrating exceptional growth and innovation.

The broader market context further illuminates Upwind’s strategic importance. Tomasz Tunguz, a general partner at Theory Ventures, recently articulated in his widely-read blog that cybersecurity is poised to become the third major wave of AI software that enterprises will readily invest in. This follows the successful integration and adoption of AI in coding tools and customer support solutions. Tunguz’s insight highlights a critical shift, positioning AI-powered cybersecurity as an essential next frontier for corporate spending, driven by the escalating complexity of cyber threats and the imperative for real-time, intelligent defense mechanisms. Upwind’s focus on AI-driven cloud security aligns perfectly with this emerging market trend, positioning it at the forefront of this new wave of enterprise AI adoption.

By opting to walk away from a substantial acquisition offer from Datadog, Upwind’s management clearly articulates its conviction that the company’s ultimate worth will significantly exceed the $3.8 billion that Datadog was prepared to pay. This strategic decision underscores a deep-seated belief in the company’s continued growth trajectory, its innovative technology, and the expanding market for its specialized services. However, despite this confidence, the reality of the current market landscape suggests that an eventual sale remains a highly probable outcome for the startup. The cybersecurity sector has seen relatively few companies go public in recent years, with mergers and acquisitions frequently serving as the primary exit strategy for successful ventures. This trend is often attributed to the specialized nature of the market, the desire for larger tech companies to acquire cutting-edge technologies, and the rigorous requirements for public market listings. Consequently, while Upwind aims for a higher valuation, acquisition by a larger entity could provide a strategic pathway for its continued evolution. Indeed, sources familiar with the company indicate that Upwind continues to attract significant acquisition interest, reflecting its desirability in a competitive market.

Upwind was co-founded by Amiram Shachar, a seasoned entrepreneur with a proven track record in the cloud technology space. Shachar previously founded Spot.io, a cloud spend management startup, which he successfully sold to NetApp for a substantial $450 million. His prior success provides a strong foundation of experience and expertise in navigating the complexities of cloud infrastructure and delivering high-value solutions. Upwind’s core technological approach, which it terms "runtime security," focuses on identifying, alerting, and actively remediating attacks and vulnerabilities within active cloud services in real time. This method is crucial in dynamic cloud environments where threats can emerge rapidly and require immediate responses to prevent significant damage. Unlike traditional security models that might focus on perimeter defense or static analysis, runtime security actively monitors and protects running applications and infrastructure, providing a proactive and agile defense against modern cyber threats. By leveraging AI, Upwind can analyze vast amounts of data in real-time, detect anomalous behaviors indicative of attacks, and automatically trigger remediation actions, thereby minimizing the window of vulnerability.

TechCrunch has extended invitations to both Upwind and Datadog for comment regarding the Series C funding round and the reported acquisition attempt.

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Marina Temkin, the reporter for this story, is a respected venture capital and startups reporter at TechCrunch. Her career includes extensive experience covering VC for PitchBook and Venture Capital Journal, and she previously worked as a financial analyst, holding a CFA charterholder designation. She can be contacted via email or encrypted message for verification.