About GMAT Prepster

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Welcome to GMAT Prepster

GMAT Prepster is a full-service GMAT preparation company.  We strive to deliver the best GMAT preparation possible.  Every piece of content that has been created on this site has been created by individuals who have scored in the top 1% on the real GMAT exam.  We say this not to brag, but to give you the assurance that everything you use here is of the utmost quality.

Our founder, Jim Kernan, is a graduate of the Fuqua School of Business after getting his own 770 on the GMAT, and he has been helping students crush the GMAT for over 5 years (countless 99th percentile scores).  He has tutored students on 6 continents and helped students of all levels reach their GMAT goals.  The culmination of thousands of hours of tutoring and teaching classes has lead to this site.

What you will find here is simple: a personalized guide to the GMAT.  We will help you craft study plans, guide you through lessons, provide you with exercises and practice problems, and give you tools to analyze your results.  This way, you can focus on getting better at the GMAT while our adaptive learning platform and experienced instructors will help guide you to the next step.

Best of all, it is free to start:

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Minimum Instructor Score

Guaranteed Satisfaction

Guaranteed Minimum Score Increase*

Why choose us?

Whether you are just starting your GMAT journey or have been knocked around a bit by this challenging exam, we are here to help YOU. Everyone has different needs: some just a point in the right direction and others a more hands on approach.  Either way, we can help.  And, better yet, we will help you decide what is right for you.  Our adaptive learning platform and personalized dashboard will help guide you to the next step on your GMAT journey.

More about us

Who we are

We a professional GMAT instructors who are dedicated to providing you with the best possible service and material to succeed in your quest for a great GMAT score.

Our Material

Our materials are second to none.  We have lessons in text and video formats, a variety of exercises and practice questions, and detailed answer explanations that are in text, video, and hand-written formats (and in case you were wondering, we have this for Official GMAT questions from the OG and other texts).

Why we do it

Quite simply, we believe that everyone should be able to receive world class education.  We felt the existing market did not provide either 1) Quality or 2) A Fair Price.  We strive to give you the best possible education at a fair price.

Where we do it

Well… Everywhere.  We have educated people on all 6 inhabited continents.  If you have an Internet connection, we can teach you the GMAT.  If you can prove you are from Antarctica, anything you want is on the house!


Detailed Lessons: 250+
Video Explanations: 1,000+
Adaptive Learning: Get Focused Help
Curriculum Writers: 770+ Scores
Small Group Study: Connect With Others

Want to gauge your ability? Take our free diagnostic exam.

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What People Say About GMAT Prepster

  • I just found out I got accepted to NYU Stern! I'm so excited and honestly you were by far and away the most critical part of the process for me. I've thought of you often and gave missed our sessions- if you can believe it.Thank you for your patience and good humor. I've been thinking about how amazing and difficult my experience studying for the GMAT was- and I know that I couldn't have done any of it without you. So thanks and know that I will always be grateful.
  • Just wanted to let you know I took the GMAT today and scored a 700.. I couldn't have done it without Jim and his support.
  • I got a 700 on my gmat, 44 on math and 41 on verbal.
  • I just took my GMAT exam yesterday and I wanted to give you an update on my results. Overall, I got a 760 on the exam, with a scaled score of 49 on Math and 45 on Verbal. Obviously, I'm very pleased with these results, and I just want to thank you for all of your help over the past few months.I think it's pretty clear that your tutoring really had an impact on my score. I'm sure that a lot of my friends will be taking the GMAT in the near future, so I'll be sure to refer them. Once again, thank you for all of your help.
  • I wanted to let you know that I took the GMAT today and got a 750 (Q50 V41)! Thanks for the help Jim!
  • Wanted to share the news that I was admitted to HBS. I can honestly say I could not have done this with you. Over the moon with this outcome!


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