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EXECUTIVE ASSESSMENT TUTORING

Brutally Honest Tutoring

Our EA tutors cut through the noise. We’ll pinpoint what’s holding you back and give you clear, actionable strategies to fix it fast.

Custom-Built Study Plans

No cookie-cutter prep: Every private EA tutoring plan is tailored to your strengths, weaknesses, and timeline.

Teachers, Not Salespeople

Our Executive Assessment tutors have 99th percentile scores and decades of teaching experience. No salespeople — just results.

How We Think. How We Teach.

How GMAT Ninja Thinks About the EA

One‑on‑one Executive Assessment tutoring, built for busy professionals

The EA is short, but it isn’t simple. Our online Executive Assessment tutors focus on what actually moves your score: clearer thinking, cleaner habits, and a custom study plan that fits your schedule. No gimmicks, no canned curriculum — just one‑on‑one Executive Assessment tutoring tailored to the way your brain works.

We diagnose what’s really holding you back (timing discipline, careless errors, CR logic, IR stamina, rusty quant foundations, sloppy reading, and so on), then build week‑by‑week assignments and lessons so you can spend your limited time where it pays off most. Think of us as your EA pit crew: you bring effort, and we bring strategy, structure, and accountability.

We’ve prepped EA candidates since the exam launched, and since the EA includes nearly the same question pool as the GMAT, our decades of GMAT coaching transfer directly to the EA’s Quant, Verbal, and Integrated Reasoning sections.

If you want Executive Assessment test‑prep tutoring that maximizes efficiency and minimizes stress, you’re in the right place.

Meet the Team

Charles Bibilos Charles Bibilos is one of the world’s most accomplished independent GMAT instructors

Alex Cotton has 15+ years of tutoring experience and a perfect score on the GMAT verbal section

Harry Duthie Harry is a Scotland-based former semipro rugby player with 770 on the GMAT

Vlad Galeev has earned a GMAT score of 770, and has tutored students in economics, English, and chess, in addition to the GMAT, GRE, and EA

Dave Goldstein has taught test prep since 2004, winning teacher-of-the-year awards from two major test-prep companies before GMAT Ninja

Tim Hesler has a 780 on the GMAT, along with 99th-percentile scores on several other standardized exams

John Michael MacDonald is one of the world’s most versatile teachers, with more than two decades of experience teaching standardized test prep, history, literature, and theater

Mike Maietta is the proud owner of a 790 and is an experienced teacher, writer, and management consultant

Dana Stepleton is a West Point graduate and former Army captain who has earned a 780 on the GMAT

Shaun Veran is 99th percentile GMAT scorer who now brings his startup smarts to test prep

Bransen Vilardo left banking to teach and has scored a 770 on the GMAT

Our team has decades of combined experience in Executive Assessment test prep tutoring and GMAT coaching. We’ve guided executives, senior managers, and working professionals into top EMBA and MBA programs, with strategies designed for people whose time is their most limited resource.

You won’t be picking from a random list or shuffled to the next available instructor—we’ll carefully match you with the right one-on-one Executive Assessment tutor after understanding your goals, strengths, and schedule. It’s all part of our commitment to truly personalized, online EA tutoring: the kind of support that actually makes a difference.

What Makes Us Different

Experience

Our team has 100+ years of combined test‑prep teaching. We’ve coached executives and working professionals into competitive EA scores for EMBA, part‑time MBA, and select full‑time programs. Every tutor is a seasoned educator, not a salesperson.

Targeted Strategy

Templates and “tricks” don’t work on the EA. Your plan is built around your goals, timeline, and data from practice tests and homework. We’ll show you exactly where to focus to earn points fastest, and what to ignore.

Built for Busy Schedules

Because it’s an adaptive exam, the EA rewards precise execution and punishes sloppiness. We’ll tighten timing, reduce unforced errors, and help you develop consistent, repeatable approaches to IR sets, CR argument analyses, RC passage breakdowns, and quantitative problem solving. We’ll give you focused study tasks that lead to measurable gains.

Honesty & Accountability

We won’t promise miracles. We’ll always tell you the truth about what it takes to improve, and we’ll keep you accountable with clear milestones and roughly 15 hours of weekly homework. If you show up consistently, your Executive Assessment tutor will be in your corner every step of the way.

We’ll also never sell you tutoring “packages” that you don’t need. You’re free to stop at any point if you’re not making progress, though most students find that our blend of structure, accountability, and insights is exactly what they’ve been missing.

And because it all comes from the heart, we hire tutors who are genuinely kind, thoughtful people. We’ve raised tens of thousands of dollars for nonprofit organizations, and we provide an unparalleled collection of free EA and GMAT resources so that anyone can benefit from our expertise, regardless of their financial situation.

What Our Students Say

Feedback that Speaks for Itself

EA Tutoring Prices

Transparent Pricing, No Surprises

Tutoring with a GMAT Ninja Tutor

$320

For each hour of tutoring

1:1 Private EA Tutoring

Experienced EA Tutors

99th Percentile Scorers

Online & Flexible

Tutoring with charles Bibilos

$420

For each hour of tutoring

~25 Years of Tutoring

Perfect Exam Scores

The Original GMAT Ninja

Outstanding Dad Jokes

Each tutoring session lasts 2 hours. We’ll take payment for the first session in advance, and for any further sessions you’ll pay as you go after each session.

We don’t offer packages or bulk discounts, because we strive to minimize the number of sessions you’ll need — and we never want you to pay for more tutoring than you’ll use.

No More Business as Usual

One-on-one Executive Assessment tutors with a fully personalized roadmap for your needs

What Our Students Ask

Personlized Tutoring FAQs

The quick answer is that the structure of tutoring depends entirely on each student’s strengths, weaknesses, interests, and needs. You’re (presumably) looking for a tutor because you want somebody who will efficiently teach you exactly what you need, rather than wasting time with a one-size-fits-all class.

Keep in mind that each of the exams we tutor (GMAT, GRE, & EA) are extremely nuanced. We’ll look for the most efficient ways to help you gain points, and that inevitably means different things for different people.

For a deeper look into our tutoring process, check out this video:

For the GMAT, EA, and GRE, we offer dozens of sets of practice questions that we’ve developed over the years, but these sets are only designed as supplements for students who need extra work on certain question types. Each exam has its own unique question styles, and there’s absolutely no substitute for using official practice questions.

So the answer is yes, we do provide our own practice materials to our students. But we would be crappy tutors if we pretended that our materials were somehow better than the materials developed by the people who actually write each of the exams.

Nearly everybody asks this question, and our answer is always the same: it depends.

If, for example, you’ve never touched a GMAT prep book but dream of admission to Harvard or Stanford, then you might need more tutoring than somebody who is just fine-tuning her approach after months of self-study. If you’ve taken only a single practice test and your score was significantly lower than your goal, then you might need a whole lot of time with a tutor.

There are no shortage of other wildcards: everybody improves at a different pace, some students are better about doing homework than others, and some applicants have set more challenging score goals than others.

So we know that the answer is unsatisfying, but until we know a lot more about you and what you’re trying to achieve, we can’t predict how much tutoring you’ll need. Sorry.

You’re persistent, huh? We like that.

This might be too generic to be helpful, but if you’re looking for improvement on every section of the GMAT — and if you’re able to keep up with our recommended workload (~15 hours per week, with two-hour tutoring sessions roughly once a week) — then it’s reasonable to expect your learning curve to “flatten out” after about 12 weeks.

Here’s the problem: your learning curve might flatten out exactly at your goal score, or it might flatten out long before you reach your target score. Or if you’re really lucky, you might even overshoot your score goal if you study for 12 weeks. So it isn’t unusual at all for a student to reach their goal in less than 12 weeks, or for us to discover that it’s going to be a long, hard, uncertain fight to achieve a particular score.

We can promise this, though: we’ll provide honest assessments every step of the way, even if it’s not what you want to hear. So if you start working with us, we’ll do everything we can to make sure that you understand where the process is headed, and what the prognosis is for improvement.

This is a big part of how we’re different from other tutoring companies: all of our tutors are trained to the same ludicrously high standards, and we all collaborate frequently to make sure that we continuously improve as tutors. We all use the same materials and employ the same philosophies, and we’ve all trained — hard — to become nimble in our approach to tutoring. We’re also painfully selective in our hiring process: in our most recent hiring rounds, we extended offers to four tutors out of more than 3000 applicants.

Sure, we all have different personalities, but we work tirelessly to be similarly great at our craft, and we’re as unified as a collection of tutors possibly can be.

In other words: if you think Charles has some secret sauce as a tutor, rest assured that he has already shared every bit of it with the rest of the GMAT Ninja team.

Beyond GMAT Ninja Tutoring

What else can we do for you?