Parallel Web Systems

Infrastructure for intelligence on the web

San Francisco, United States · Founded 2023 · $330.0M raised

Employees
11–50
Founded
2023
Business Model
B2B
Total Funding
$330.0M
Last Round
$100.0M Series BApr 2026
Rounds
4

About

Parallel Web Systems was founded in 2023 by former Twitter CEO Parag Agrawal and Travers Nisbet in San Francisco. The company builds web search infrastructure specifically designed for AI agents — solving how AI systems can access, understand, and use real-time web data effectively, including navigating paywalls and login-gated content. Parallel's APIs power AI agents performing deep research, software engineering, sales data analysis, and insurance risk assessment. The company emerged from stealth in August 2025 and raised a $100M Series A co-led by Kleiner Perkins and Index Ventures (with Spark Capital, Khosla Ventures, First Round, and Terrain), valuing the company at $740M post-money. Total funding is approximately $130M including a prior $30M seed round.

Summary

Parallel Web Systems is an Artificial Intelligence company based in San Francisco, United States, founded in 2023. It has raised $330.0M in total across 4 rounds, most recently a $100.0M Series B round in Apr 2026. Investors include Index Ventures, Kleiner Perkins and Spark Capital.

Tech & App Stack

3 technologies & apps tracked

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Funding History

Series BSeries BApr 2026
$100.0M

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Investors

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