Contact Us

  • Contact Us

    • Borrower Services
    • Investor Services
    • Email
    • Feedback
    • Send Loan Payments To:

      Prosper Marketplace Inc.
      P.O. Box 886081
      Los Angeles, CA 90088-6081

      If using an expedited mail service, like FedEx or UPS:

      Lockbox Services - #0136081
      Prosper Marketplace, Inc.
      3440 Flair Dr.
      El Monte, CA 91731


    • Office Location

      221 Main Street, Suite 300
      San Francisco, CA 94105

    Work With Us

    We are always looking for new relationships to help spread the word about Prosper and our peer-to-peer lending marketplace.

    Join Prosper's Affiliate Program

    Prosper offers competitive incentives for affiliates who refer to our service. It's easy to join.
    Click here to learn more

    Partner with Prosper

    If you are interested in learning more about working more closely with Prosper, we would love to hear from you.
    Email us at

    Note: Please include your loan number when sending check payments through the mail or scheduling payments through online banking. Including a loan number will help us to apply your payment to your loan more quickly. You can locate your loan number by logging into your account, clicking Borrowing, and then clicking your loan title. Your loan number will be under the title on the next page.