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Top IT Product Companies in California

74 IT product companies ranked by rating, review volume and listing quality.

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Between them, the 74 IT product companies on this page cover web development (27), web design (23), IT services (22) and eCommerce (21). They also list work in United States and San Francisco. 74 of them have written a profile you can read before you get in touch.

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  1. NS

    Northstar Security

    Artificial Intelligence - AI · Cloud Security · Cybersecurity · Also in Los Altos, California and United States

    Northstar Security's Security Context Graph links assets, identities and vulnerabilities so AI agents can find and fix risk; it emerged from stealth in October 2026 with $7 million…

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  2. D

    Daily

    API · Also in San Francisco and United States

    Daily runs WebRTC infrastructure for real-time voice, video and AI agents and created the open-source Pipecat framework; in October 2026 it announced it is being acquired by…

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