Simpler clinical trial stipends and reimbursements
Pay research participants quickly and securely with 2,500+ redemption options to choose from, including physical prepaid cards.

Top-rated payout provider



One platform for every clinical trial payment
From participant stipends to travel reimbursements, Tremendous helps finance and operations teams pay patients accurately and on time, without the manual work.


Stipends
Compensate participants for their time with fast, flexible payments for each visit or milestone.


Reimbursements
Cover travel, parking, lodging, and meals, and keep a centralized record for every disbursement.


Task incentives
Reward survey completion, ePRO submissions, and eDiary entries to keep participants engaged.
How Tremendous works
Place orders from our secure platform, or automate participant payments via API.
Choose which payment options to offer, including prepaid cards, PayPal, Venmo, bank transfers, gift cards, and more.
Deliver a branded redemption experience with customizable emails and landing pages.
Track what you've sent and spent across sites and studies in our real-time dashboard.
Benefits for clinical trial teams
Frictionless for participants
Participants can get paid without creating an account or submitting sensitive personal information.Built for your workflows
Automate participant payments with our dev-friendly API, and provide a fast, easy redemption experience in 200+ countries.Responsive support team
From onboarding to ongoing questions, our support team is here to help you and your patients.U.S. tax management
Collect W-9s automatically and prep 1099s to stay on top of reporting requirements and streamline U.S. tax filing.Security you can trust
Protect participant data with HIPAA and SOC 2 Type II compliance, data encryption, and flexible access controls.
Spend more on patients, less on fees
No platform or implementation fees
Transparent fees for PayPal, Venmo, and ACH
No fees on gift cards
No-fee options for prepaid cards
Sr. Grants Administrator
Academic medical research institution