Referral Program

Current testers refer your friends and family to P&K Research.


Refer your friends and family to P&K Research. You will be mailed a check for each person that becomes a P&K tester and participates in a research study. All you need to do is complete the referral form and we’ll contact your friends. Once your friend participates in a study, you will receive a check for $10, $15 or $20 depending on the promotion.

Refer a friend ages 5-17, earn $15 each

Refer a friend ages 18-35, earn $20 each

Refer a friend ages 36-65, earn $10 each

Download the referral form by clicking the button below. Referral forms are also available at each P&K location. 

REMEMBER-The more friends and family members you refer, the more referral money you'll collect.

It's Easy!

Refer friends & family and earn cash instantly!

  • Share the great benefits of being a P&K tester with your friends and family by submitting their information to us. Please make sure to tell your referrals that P&K will be contacting them to sign up.
  • When your friend participates in their first study as a thank you for your referral, you will be mailed a check.


Let us do the work for you. Send us a list of your friend's names and phone numbers to (remember to include your name in the email) and we will do the rest.

For more information about the referral program call 800-281-3155 or email


  • Please be sure to let your referrals know we will be calling them to register them in our database and they will be contacted within 10 days
  • New referral information must be submitted prior to your referral registering with P&K. If your referral registers online or calls in themselves, P&K reserves the right to deny your eligibility for this promotion if we did not receive notification of the referral beforehand
  • The special referral amount will only apply for the monthly special and if the new tester is the age applicable for that promotion
  • In order to be compensated, your referral must register with us, participate in a study, and not be a current P&K tester
  • After completion of your referral’s first study, you will receive a check within 30 days. The address on your form will be the address we use to mail out checks and your account will be updated with the given address
  • For inquiries about your referral check, please email a request to
  • The referral program is for current P&K Research testers only
  • We reserve the right to deny any referral payment and this program may be stopped or changed at any moment, without notice
  • Duplicate entries and referrals given under multiple P&K profiles will render you ineligible to participate in this program
  • 2017 referrals will no longer be paid out, effective February 1st, 2018
  • Please return this form to the front desk or email the names and phone numbers of your referrals to