Ex-Twitter CEO Parag Agrawal’s AI Startup Hits $2B Valuation

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Updated Date: May 1, 2026
Written by Kapil Kumar
Parag Agrawal

Parallel Web Systems, a startup launched by former Twitter CEO Parag Agrawal, has secured $100 million in its Series B funding round. The investment highlights the growing interest in autonomous AI agents and their real-world applications.
The round was led by Sequoia Capital and has pushed the company’s valuation to around $2 billion. Existing investors like Kleiner Perkins, Index Ventures, and Khosla Ventures also joined in. This comes after the company raised another $100 million in its Series A round last year, when it was valued at $740 million. So far, Parallel has raised a total of $230 million.

Based in Palo Alto, the company is still relatively small, with around 50 employees. Agrawal says the new funding will mainly go toward expanding the sales and marketing teams, along with strengthening research and development. The company is also focusing more on attracting enterprise clients.

Parallel is working on something quite specific building infrastructure for AI agents. These agents are designed to perform tasks on behalf of humans, and a big part of that involves searching the web efficiently. Agrawal believes that in the near future, AI agents will rely on the web even more than people do, which is why they need tools built specifically for them.

These AI agents can handle tasks like financial research, insurance processing, or reviewing government contracts things that usually require hours of manual browsing. According to Agrawal, agents can complete such work faster and at a much larger scale.

Sequoia partner Andrew Reed, who is now joining Parallel’s board, said the company’s progress is closely tied to the rise of long-running AI agents. These systems can work in the background for longer periods while maintaining context, making them more efficient for complex tasks.

Some companies are already using Parallel’s platform. For example, AI legal startup Harvey relies on it to power its agents, which help automate research-heavy legal work. Harvey’s co-founder Gabe Pereyra explained that simply giving AI access to search engines isn’t enough. Instead, they need more control over which sources the AI can access something Parallel helps manage.

Currently, more than 100,000 developers are using Parallel’s tools, including both startups and large enterprises. The company is also competing with others like Tavily and Exa, which are building similar solutions in this space.

After leaving Twitter in 2022, Parag Agrawal has shifted his focus entirely to this new venture. He says the journey hasn’t been easy, as solving one challenge often leads to another. Still, he remains optimistic and excited about what the company is building next.