Former Twitter CEO Launches AI Startup Parallel Web Systems, Raises $100M in Series B Funding with $2B Valuation

According to The Wall Street Journal, Parallel Web Systems—an AI startup founded by former Twitter CEO Parag Agrawal—has raised $100 million in its Series B funding round, led by Sequoia Capital, with participation from Kleiner Perkins, Index Ventures, and Khosla Ventures. The company’s valuation has risen to $2 billion, bringing its total funding to $230 million. Parallel focuses on building web search infrastructure for AI agents, supporting in-depth research use cases such as investment research, insurance claims processing, and government contract analysis. Over 100,000 developers are already using its platform, with customers including legal AI company Harvey. Proceeds from this round will be used to expand the sales team and strengthen R&D efforts.