• Contact Us

    Contact Us

    OSIsoft World Headquarters
    San Leandro Tech Campus
    1600 Alvarado Street
    San Leandro, CA  94577

    Phone:  +1.510.297.5800
    Fax:  +1.510.357.8136

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    Have a question or inquiry for OSIsoft? Please complete and submit the form below and OSIsoft will be in touch within 48 hours – usually sooner! For Tech Support inquiries, visit the OSIsoft Customer Portal