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Founder Charles Bibilos has helped students conquer the GRE and GMAT since 2001, and has earned perfect scores on both exams. All of our tutors have scored at least a 770 on the exam, and all of us are dedicated to tutoring as a full-time, long-term career. We’ve also served as GMAT Club’s resident verbal experts since 2017.
If you join us for GMAT tutoring, expect brutal honesty and a commitment to understanding what makes YOU tick as a test-taker. We’ll diagnose your weaknesses, assign a ton of individualized homework, meticulously track your results — and tell you honestly if you’re not on track for your target GRE, GMAT, or EA score.
Making huge score improvements on the GMAT can be incredibly difficult, and if you want gimmicks and shortcuts, we’re not the right GMAT tutors for you. But if you’re ready to work hard, visit us at www.gmatninja.com to learn more.
A two-hour session won’t magically transform your score, but we’ll give you a sense of what, exactly, is holding you back, along with some self-study guidance.
Please visit www.gmatninja.com, and contact us for availability.
GMAT tutor Bransen Vilardo is smarter than our founder, and can teach in Hebrew, Greek, and Arabic. And if you prefer English, any of our tutors have you covered.
For more, please visit www.gmatninja.com, and contact us for availability.
The GMAT tests far more than just math formulas and grammar rules; it also challenges your mental clarity, flexibility, and resilience. The GMAT Ninja Test Anxiety Program can help you address these challenges head-on.
Please visit www.gmatninja.com/performance-program for more details.
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Improvement 80 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
Alex was a phenomenal tutor. And without his help, I do not think I would have been able to achieve my score goal. Alex brings a great blend of motivation and insight into the tutoring process and identifies the issues holding you back from achieving your score goal. Alex's temperament is also unmatched, he is one of if not the most patient people let alone tutors I have met, he allows you to think about why your process may or may not be working and in this introspection is where I seemed to make the most gains in progress toward my score. If anyone I knew was struggling with the GMAT, I would immediately point them in the direction of GMAT Ninja and Alex when looking for an effective and honest tutoring service.
Improvement 50 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
Mike is incredible. He went above and beyond to support me and helped me achieve an amazing score. Not only is he a genius when it comes to the test questions themselves, but he understands his students and their needs on a deep level and is willing to put 100% of his effort in to get you to score at your highest potential. He was always willing to go above and beyond to support me, and he made the process enjoyable as well. Mike really knows this test through and through and is able to effectively teach you the techniques and skills you need to excel. Well worth the time, money, and effort. If you want to succeed, he's your guy.
Joined: Nov 13, 2019
Posts: 45
Kudos: 11
Verified GMAT Classic score:
720 Q49 V38 (Online)
Improvement 70 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
Had a great time working with alex in improving overall my gmat score. When signing up for GMAT ninja service i was a bit skeptical how can i improve my score from 650 to 700 in order to make it to my target schoo. Whats most valuable to me was how Alex coached me to approach the GMAT with strategy that suits my situtaion.
Alex constantly reminded me to focus, how to approach specific verbal questions and continuously support my progress.
Alex was also really friendly and casual - he doesnt mind my eating schedule, occasionally snacking on chocolates and toast during the 2 hour of our weekly tutoring
Improvement 130 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
My GMAT journey started in February 2023. After getting familiar with the exam formalities, I bought several guides (the newest OGs (also verbal and quant) and the Kaplan Guide). I faced several difficulties to begin with. First, as a non-native speaker, I had troubles reading complex GMAT passages in a short amount of time and understanding them on a "between the lines"-level. Second, I missed the year in high school where most of the math basics needed for the GMAT were taught, so I had to start from scratch with quant. And finally, taken the first two difficulties together, I obviously did not have the language skills to understand English math expressions.
After a few weeks of studying the basics, working my way through the guides and reading English fiction books and articles (the New Yorker, the Guardian, National Geographic, etc.), I took the first mock exam (btw: for your own good, please DO NOT WASTE THIS VALUABLE RESOURCE!). I scored a 460. One week later, I scored 370 points. Something was wrong, although I studied 6 to 8 hours a day. I knew that I needed guidance to get a grasp of the problem.
I knew GMATNinja through their helpful YouTube videos and GMAT Club posts. I contacted them, but, as they are quite booked, the next free spot opened at the end of April. I continued studying and had my first appointment with Mike via GoogleMeet on April, 27th. In the meantime my mock exam scores improved quite a bit (590, 610, 610). Mike had looked at my attempts in advance and was perfectly prepared. We talked about my approach so far, my goals and worked on a plan on how to achieve them. Also, he provided advice on how to make the most of the remaining material and mock exams. He was very understanding, calm and I always felt like I was in good hands. We went through the quant questions I did wrong during my mock exams and discovered that a lot of them were manageable for me. His expertise put everything into perspective and made me feel more secure. For example, he told me to focus on the easy and medium questions and to let the hard ones go to avoid loosing too much time. Also, he told me to stop investing those endless hours and instead to focus on quality, not quantity. During the classes, we mainly focused on improving my quant scores, because they can be improved more easily in a short amount of time. During the lessons, Mikes explanations were super helpful and I learned a great deal.
I took the first official exam on May 1st, because I did not want to risk it all on one attempt on May 18th. I scored a 550 (Q: 37, V: 28) mostly because I had no time left on verbal and hurried through the last 10 questions and was very worried. But I trusted the process and kept up my pace and work. On the fifth mock exam I scored a 620. My quant score went up and my verbal score stayed solid.
Mike urged me to take things easy during the last days before the exam. On my second attempt, I scored an unbelievable 680 (V: 40, Q: 43). I am still super grateful for the helpful advice, Mikes dedication, patience and support and I would recommend GMATNinja tutoring any time - it is worth every cent.
Also as a hint: Plan your exam early enough! My second attempt had to be revised separately and it took them two weeks. Even when he wasn't my tutor anymore, Mike, and also Charles, provided me with support regarding the revision from GMAC.
Improvement 30 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
I would recommend GMAT Ninja to anyone looking to improve their score on the test. I worked with Alex at GMAT Ninja for roughly 9 weeks before taking my test, and I saw tremendous improvement in my Quant ability over the course of our sessions together (my math was quite rusty after 5 or so years of not needing to solve for "x"). What differentiated Alex from a normal math tutor, however, was his in depth knowledge of the test itself. He gave me a highly practical toolkit that enabled me outperform on the quant section. I think that anyone - even someone scoring well - would benefit from at least one session with Alex before going into a test. Thank you, Alex and GMAT Ninja team!
Improvement 100 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
I signed up with GMAT Ninja after completing a two month self-study course, three OG practice exams, and my first official GMAT attempt. I scored a 660 (V45, Q36) on my first official attempt before tutoring began. As a side note, the highest of my first three practice exam scores was a 630.
Once signed up with GMAT Ninja, I was tutored by Bransen for the next two months. Bransen was great to work with. He helped me to understand and fix my bad habits. Most of my tutoring with Bransen was focused on Quant. After two months, I took the test again and scored another 660, but this time it was a V38 and Q43. My Quant definitely improved, which was my main goal going into my tutoring sessions. I knew my lower Verbal score was a result of my lack of discipline during the test, so I scheduled my third attempt for a month later hoping to score a little higher overall. I knew if I followed Bransen's advice with Quant that I could at least match my last Quant score. I also knew if I eliminated dumb mistakes with Verbal I could get it back up close to a V45. After a month of light study, I took the test again and to my surprise I scored a 760 (V51, Q45). Bransen was instrumental in me achieving this score. His voice was always in my head as I prepped for my last attempt. It was money well spent to get advice and coaching that I couldn't get from a self-study prep course. Bransen even gave me some tips via email after our tutoring sessions had ended. I'd recommend GMAT Ninja to anyone who feels stuck or discouraged with their GMAT scores.
Improvement N/A
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
I took a lesson with Dave Goldstein after I studied for a month and got a 720 on the official exam. My main issue was verbal and I had a non-native background with very limited proper English grammar education and I never read fiction books (though I picked up the professional usage of English on the job over ~4 years). I initially just used the MGMAT book, but after a month, I can feel that my progress was slowing down, the mere increase of familirty with question types no longer helps. That's where David came in, the most helpful thing in retrospect is that he instilled the correct way of practicing and pace of solving problems upon me. On the CR and RC sections, the sequence of reading articles, noting down key themes and answering questions, as well as practicing using more than a dozen LSAT test really helped me to be more comfortable on the exam. As we monitor the correct rate on the LSAT, the number just goes up over the course of a month. I think practicing is necessary, but to have someone where to pointing out exactly what you are doing wrong is incredibly efficient and allowed me to finish the whole GMAT workstream within two month (including one month with David), and save time for other improvements in my Bschool application. I highly recommend working with Dave if you are ready to follow his procedure and doing a lot of practice questions. In the end, you will gain a very systematic approach to verbal questions and confidence steamed from seeing your improvements week over week.
Improvement 70 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
Dana was simply fantastic. Patient, systematic, methodological and tough - all the things that I needed to push my score from a none too exciting 640 to a reasonably respectable 710.
For quant Dana taught me key concepts but equally importantly, how to approach a problem and what was being tested. She also got me to stop randomly solving a problem before I had even thought about what I was going to do. The homework assignments really helped me get the basics down and practice so that the challenging problems became much easier. My quant went for a paltry 36 to a very healthy 48.
For verbal, Dana was instrumental in getting me to slow down again and learn how to properly eliminate answers. The SC section, where I struggled, was a lot easier after I went over the main grammar concepts with Dana. My Verbal score went from an OK-ish 38 to a pretty good 41.
I highly recommend taking lessons with Dana. A score of 710 was nowhere on the cards for me - but with Dana's help, I got there in a few months.
REVIEWER IDENTITY VERIFIED by score report [?]
Improvement 200 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
The path towards completing the GMAT is indeed well trodden and well documented these days. Whether you are just starting this journey, or find yourself at an impasse like I did, I hope my example can offer you some guidance and encouragement.
My journey was long and at times a struggle. When I decided to take the GMAT, I knew that it was going to be tough, but I never anticipated how tough. The last time I had grappled with maths was at the age of 15 when I finished my GCSE's. Some 12 years later, with a language degree and brand consultancy career behind me, I set about learning Maths again from scratch. After 2 months I had studied the Manhattan Foundations Quant book from cover to cover and buoyed with confidence, sat my first mock....which was a disaster. 350. At this point I realised that if the GMAT was my Everest, I had yet to arrive even at basecamp.
Undeterred, I set about another month's study, concentrating my energies on the higher-level Quant questions, however further mocks showed only modest improvements. By this stage, deadlines for business schools were fast approaching and I realised I needed to reach out for help.
It was about early December 2016 that I was introduced to Michael Maietta, (@GMATNinjaTwo) via Charles Biblios, aka GMAT Ninja. Mike came highly recommended by Charles. As I was studying from the UK, I questioned whether working with a teacher based in the USA was a sensible plan. However, Mike quickly found a schedule that worked for me and we set to work via Skype.
From the moment we started, I knew that working with Mike was going to be a rewarding experience. He is both hugely talented, professional and insightful while at the same time bringing a level of fun and energy into the classroom that kept me looking forward to the next lesson (something I didn't know was possible with Maths!). He very quickly got the measure of me and created a plan that would build upon my foundation level and enable me to advance towards the harder questions.
Having achieved a top GMAT score himself, he was able to not only give me a secure grasp of the core Quant and Verbal topics, but also teach me those crucial time saving tricks that I wasn't able to learn from pouring over books or watching online videos (I had watched a lot of self-help videos to little avail!). As Maths was not a natural discipline for me, it was even more impressive that he was able to translate these concepts, at times very complex, into a language I could understand and use.
I also would not have prevailed were it not for Mike's remarkable ability to motivate and push me forwards. Given the size of the task ahead, it was easy on occasion to lose focus/spirit and whenever this happened, he would find a way to get me fired up again. His level of dedication to my cause was exemplary and far exceeded what I expected. This is a real string to his bow and again another reason why going down the tutor route paid dividends.
One final credit I would like to bestow upon Mike was his insight into the tactics of taking the test. Mike helped work towards my deadlines and had a solid strategy for using the precious Mock tests/ practice material. As the test date neared, he adjusted the intensity to ensure I was exam fit and was always conscientious of the external factors that would also play an important role in optimising my test day performance, such as sleep, exercise and diet. I trusted in his guidance and when the big day came, I felt as ready as I ever could be.
When I left the exam centre, I not only had a 280 point improvement over my previous scores (I'll let you be the judge of the scale of this improvement), but also a score that got me into IESE Business School, one of the top 3 business schools outside of the USA. So, if you're reading this and are thinking tuition might be something for you or you've hit an impasse and don't know how to move forward, I really can't recommend getting tutor support more. You can check both Mike and Charles' profiles on their GMAT Ninja web-page (google search). Thanks to Mike, the GMAT didn't stand in the way of my career aspirations. I am forever grateful.
REVIEWER IDENTITY VERIFIED by score report [?]
Improvement 40 Points
Course GMAT Tutoring in English, Hebrew, Greek, or Arabic
Instructor GMAT Ninja
Location Online
GMAT Ninja is the best value GMAT tutoring service on the Internet. After studying for 4+ months (through OG, Manhattan Prep, Target Test Prep, you name it) and peaking at a 700 multiple times on the real exam, I knew that I had it in me to do better, but was completely burned out and lost as to how to achieve the results I wanted. Extensive research led me to GMAT Ninja. If their plethora of excellent free GMAT resources/videos on GMAT Club doesn't convince you they know what they're talking about, their firm support, tailored approach, and honest feedback will.
I worked with Mike Maietta. Mike was super funny, unflinchingly honest, and absolutely committed to helping me achieve my goal. After a certain point of mastery, the last frontier to acing the GMAT is really about mastering your own psychology. In my two months of tutoring with Mike, he pretty much busted every myth I had internalized in my previous study/Internet-ing/forum browsing. I thought I was "bad at math" and needed to work more on concepts (wrong). I thought I should try not to get more than X questions wrong in order to get a great quant score (wrong). Or that getting the first 10 questions right was critical for a high score (also wrong). With every myth and more, Mike patiently delivered examples from past students to dispel the idea that I needed to "game" the test, but rather focus on consistent execution and approach every time. I also appreciated that the GMAT Ninja folks recognize that tutoring can be an expensive investment, so they are thoughtful about how long they recommend you stay in tutoring once they feel like you’re ready (up to your own discretion).
Anyway, months later, armed with a 740, I ended up with admits to an HSW and multiple T10 schools with full rides. I’m confident my GMAT was a key contributing factor to those results. Thanks, GMAT Ninja, for being part of my journey – I recommend them wholeheartedly.
P.S. Charles, GMAT Ninja’s founder, is awesome and a spicy food fiend with great Thai recs, which was a fun surprise to chat about during my intake process!