AI Startup in Infrastructure and Agentic Systems Continues to Draw Funding Surge

The volume and scale of startup funding this week indicates that even with broader macro concerns, investors continue to deploy capital into artificial intelligence (AI) products that solve immediate business challenges and support a growing wave of enterprise adoption.

Cursor raised $2.3 billion, a round that lifted its valuation to $29.3 billion. The company also added Coatue, Google and Nvidia to their investor list, alongside existing backers such as a16z and Thrive Capital.

Cursor builds an AI-powered development environment that helps software engineers write, fix and manage code more efficiently. The tool behaves like a highly trained engineering assistant, offering suggestions, reviewing changes and helping developers understand complex sections of their codebase.

The Wall Street Journal reported that Cursor plans to use the new investment to scale Composer, its own in-house AI model. The company says that maintaining its own model will give engineers faster responses, tighter product integration and more predictability around performance and cost.

Security also drew major investment as concerns grow about how AI agents can be misused, including the type of influence attack PYMNTS reported in the recent Anthropic case. Companies are now looking for tools that can help them identify and mitigate these risks early, and Tenzai is emerging as one of the fastest-growing players in that space.

The AI-driven offensive-security startup raised $75 million, reaching a valuation of $330 million just five months after launch. The startup builds software that behaves like a professional hacker and continuously tests an organization’s defenses. Instead of waiting for annual audits or hiring manual penetration-testing teams, companies can deploy autonomous agents that probe networks and applications around the clock.

Early customers include government agencies and critical-infrastructure operators seeking continuous assessment as AI-powered attacks increase globally.

Parallel, the AI search company founded by former Twitter CEO Parag Agrawal, raised $100 million to expand its conversational search engine. Parallel is building a system that understands natural questions and gathers information from across the web in a clearer, more direct way than traditional search results.

It can also search internal company documents, helping employees find information that is otherwise trapped in emails, file systems or collaboration tools.

Parallel’s approach positions it as a competitor to emerging AI-native search providers such as Perplexity. The company plans to expand its research team and strengthen its enterprise sales efforts as organizations adopt AI for knowledge retrieval and workflow automation.

AI’s rapid expansion has placed pressure on global power systems, and investors are increasingly backing companies that address the energy demands of large computing clusters.

Exowatt raised $50 million to accelerate the rollout of its dispatchable solar energy units across the United States. The company builds modular, solar-powered systems that store heat and convert it into electricity when needed. This allows data centers to access consistent, clean energy even when sunlight is limited or when usage spikes during AI training runs or inference workloads.

The company also said its design gives operators more control over energy costs and reduces dependence on fossil fuel-based backup power.

AI infrastructure also gained attention as D-Matrix secured $275 million to scale its AI inference hardware, according to the company’s announcement. Many AI systems today run on general-purpose chips, but D-Matrix designs processors specifically for the intensive mathematical calculations that occur when AI models generate responses. This specialization can lower operational costs for enterprises deploying large volumes of AI queries.

The company’s hardware is built to accelerate inference workloads, which consist of everyday tasks such as responding to user commands, assisting customer support teams or powering automated decision engines.

D-Matrix plans to use its new funding to expand production capacity, improve software tooling and strengthen partnerships with cloud providers that are deploying specialized processors for commercial AI applications.

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