Mackler Associates Graphic - ACT Prep, SAT Prep, Tutoring
Mackler Associates Graphic - ACT Prep, SAT Prep, Tutoring


In our performance-based world, we try to measure success objectively, and that means testing. Our approach to test preparation focuses on…

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Our St. Louis tutors help students become stronger independent learners by developing a customized approach to organization, cognition…

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A private and locally owned firm, we work with students from fifth grade to graduate school with one single mission – to improve educational performance.  Whether attending public or private schools, our students become achievers & see results – higher school grades, stronger standardized test scores, admission to their college or graduate school of choice.  Our unique teaching method helps students find the right path to higher skills and a brighter future.

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90% of Mackler students earn up to 10x the cost of our services in
merit-based scholarships from colleges and universities


ACT & SAT Prep

Mackler Associates offers proven test prep for the ACT and SAT.
We also help students prepare for AP tests, GRE, LSAT, MCAT, and more.



Mackler students have earned over $5,000,000 in merit-based scholarships
from colleges & universities in the last 5 years!


        At Mackler Associates, we offer resources for…

We hope you will take the time to learn more about the unique services we offer students, parents, and teachers in West County and throughout the metropolitan St. Louis area. Being in the midwest, ACT test prep is especially important. Try our Question of the Week. Join in the discussion in our Moving Minds forum. Learn about our educational team. We hope you decide to contact us about your situation and give us an opportunity to help you or your child succeed. Students and parents both want academic success, high grades, and the pride that comes with achievement. Our St. Louis tutors believe any student, regardless of ability, can become a high achiever.

As parents, my husband and I are delighted with the return on the investment we made at Mackler Associates. Both of our children benefitted from their individual test preparatory tutoring and college guidance counseling. We credit Mackler Associates for helping each child find the best college fit for themselves where each are happy and thriving. We highly recommend Mackler Associates.

Alicia Cammon

I have been a customer of Mackler Associates since their inception. I personally utilized their services as a high school student, and then enrolled my own children when they were in high school themselves. Each excelled under their fine tutelage and now continue to work with Mr. Marks as college students. The expertise afforded by Mackler Associates is unparalleled. They are not only able to help with a wide range of coursework and topics, but are also skilled at standardized test preparation for both undergraduate and graduate school entrance. The level of personalized service is exceptional and their availability is outstanding. I recommend them highly and without reservation, and have referred colleagues and friends in the past.

Michael L.

Mackler Associates is an excellent resource for all things academic. I worked with both Jason Marks and Dr. Mackler for preparation for both the ACT and the LSAT. Their test preparation programs have tremendous value. The best part about their services is the one-on-one test preparation. Both Jason and Dr. Mackler are masters in helping you prepare for college and post-graduate studies. Their methods are fantastic and provide you not only with knowledge of the subject areas tested but also approach and time management techniques. The one-on-one approach is what sets Mackler apart!

Alex Ledbetter

Jason Marks of Mackler Associates assisted my daughter prepare for the ACT test. Jason was very easy for her to work with and allowed her to have flexibility because of her ever changing schedule. The first time she took the test she improved her score considerably. Jason then helped her focus on areas that could improve and the second time she took the test she again improved dramatically. She has now received significant scholarship offers from multiple universities. Jason has also helped her think about different schools and has been an advisor on the process including proofread her essays and providing suggestions on how to approach the essays. He has been invaluable in assisting with the college admissions process. We highly recommend Mackler Associates.

Ken Buren

Tutoring & Test Prep News

314-434-4431  |  1067 N Mason Rd., Ste. 5  |  Creve Coeur, MO 63141  |  M – F 9:00am – 6:00pm  |  Sat 9:00am – 1:00pm  |  Sun Closed