GMAT Tutors, Events, and Resources

Note: Due to high demand, I do not offer free intro calls or discounted sessions. Thank you for understanding. I didn't just walk in and get a perfect score. My first score was in the 50th percentile. I studied my way to 99th percentile, so it's definitely possible. I have a 99th percentile score on the GMAT, GRE, and SAT, and have taught for Manhattan Prep, Kaplan, and Target Test Prep. I don't just teach the content. I teach how to think. I have a Masters in Education from Harvard and have written a book on the mental approach to standardized tests.

I scored 600 on my first GMAT practice test and scored 770 when I took the real exam. Acing the GMAT requires a thoughtful strategy. I will help you identify where to invest your time and partner with you from start to finish. My proven approach has worked for many others, and it will work for you!

My name is Siri Omene, and I am the founder and owner of Chitown Tutoring, one of the highest-rated test prep companies in Chicago with a 4.9-star average across more than 70 reviews. I have spent over a decade helping students succeed on high-stakes exams including the SAT, ACT, GRE, GED, AP, and selective high school entrance tests in both Chicago and New York City. With a background in civil engineering from Illinois Tech and an MBA from the University of Chicago Booth School of Business, I bring a structured, analytical approach to test preparation. I have personally delivered more than 10,000 hours of instruction and guided over 500 students in achieving their academic goals. My promise to you: • Deep expertise: I have trained tutors, developed full-length curricula, and worked with students across all academic levels • Proven track record of success: Students regularly achieve significant score increases and gain admission to top programs • Personalized support: Every lesson is tailored to the student’s pace, needs, and goals • Strategic focus: Sessions go beyond content and teach how to think, plan, and perform under pressure • Long-term impact: Students leave with greater confidence, stronger study habits, and skills that benefit them beyond the exam If you are preparing for business school with the GMAT, I will help you strengthen your quantitative and verbal reasoning skills, create a personalized study strategy, and boost your score to stay competitive in a selective admissions landscape.

Carl has taught, literally, thousands of students to succeed on the GMAT, and thousands more the ACT, SAT, GRE, and LSAT, over a career spanning over two decades in the test preparation world. Originally an academic, he holds advanced degrees from Yale, the University of Glasgow, and the University of Georgia, and since leaving academia he has taught, tutored, and written content for Magoosh, Kaplan, Harvard Prep, SuccessPrep, Parliament Tutors, Varsity Tutors, and many other companies, and has since founded his own company, Ivory Tower Tutoring. He was also, for many years, the chief writer for Barron''s GMAT product line.

Welcome to my profile! As a Harvard MBA graduate with a strong background in English tutoring and academic coaching, I am dedicated to helping you achieve your GMAT goals. With experience coaching over 62 individuals, I tailor my approach to fit each student's unique learning style, ensuring you gain the skills and confidence needed to excel. My expertise in communication and test preparation will guide you in reaching your target score and securing a spot at a top business school. Let's work together to unlock your potential—reach out today to start your journey!

I believe that my 8,000+ hours of full-time GMAT coaching experience over the past 12 years, the demonstrated success of my students in achieving the scores they need to further their careers, and the long list of top schools to which my students have been accepted speaks to my solid qualifications.

I spent a VERY long time studying the GMAT only to come up very short on GMAT math. Twice. Then I spent weeks doing nothing but studying those who ACED the exam, with an emphasis on those who did so after having middling scores. The result was a big change in my study and practice process. And I went from 54th percentile math scores TWICE after lots and lots of study, to getting the effective high score on the GMAT Math after only a couple months of study with my new process. I will show you exactly how I did it so you have the same framework and standards I had.

I scored a 755 (100th percentile) on the GMAT Focus Edition, with a V90, and tutor across all three sections, though I have the most experience with Verbal and DI. I like to think of the GMAT as a test of decision-making under time pressure, not raw intelligence. My emphasis is on question-solving strategies — how to read efficiently, eliminate decisively, and manage time without rushing or freezing. I’m very hands-on and adapt my approach to how you think, whether that means simplifying complex ideas, fixing timing issues, or helping you gain confidence where you’ve been second-guessing yourself. Feel free to reach out to set up an introductory call!

Andrew never thought he'd be an influencer...but here we are! Andrew has shared hundreds of test prep videos with his 30K TikTok followers, but nothing replaces the energy of live instruction. With a 770 score, Andrew knows a thing or two about the GMAT. However, just scoring well on a test doesn't make someone a good instructor. 10 years of test prep experience does. Before moving into grad school testing, Andrew was an in-demand SAT instructor on the Upper East Side of Manhattan at some of the most selective high schools. He has taught the in person, online, and on campuses such as USC, UC San Diego, and CSU Northridge. He loves helping students reach their highest potential and conquer their fears!