ProRataAI Raises $40M in Series B Funding

by Kay Aloha Villamor in September 8th, 2025

ProRataAI, a Pasadena, CA-based technology company building AI solutions grounded in respect for content creators, has raised $40 million in Series B funding, bringing its total funding to over $75 million to date. 

Investors 

The round was led by Touring Capital, with participation from additional strategic investors. 

Touring Capital is a venture capital firm specializing in early-growth stage, AI-powered software companies. The firm focuses on Series B and Series C rounds for B2B SaaS companies with a clear product-market fit. Headquartered in San Francisco, California, Touring Capital has a global investment scope, pursuing deals both inside and outside Silicon Valley, with a particular focus on emerging software ecosystems in North America, India, Australia, Israel, and Europe. 

ProRataAI Use of Funds 

The company will use the funding to expand Gist Answers, scale adoption among publishers, and grow its AI-powered product suite. 

About ProRataAI 

Founded in 2024 and led by CEO Bill Gross, ProRataAI is an AI technology company that builds AI search, advertising, and attribution solutions grounded in respect for content creators. Its flagship product, Gist Answers, is an AI-as-a-service solution that enables publishers to harness the rapid growth of generative AI by embedding custom AI search, summarization, and recommendation functionality directly into their websites and other digital destinations. Headquartered in Pasadena, California, ProRataAI partnered with more than 700 publications worldwide. 

Funding Details 

Company: ProRataAI, Inc. 

Raised: $40.0M 

Round: Series B 

Funding Date: September 2025 

Lead Investor: Touring Capital 

Additional Investors:  

Company Website: https://www.prorata.ai/  

Software Category: AI / Publishing Tech / Search & Discovery 

Source: https://www.businesswire.com/news/home/20250905771340/en/ 

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