Kaplan GMAT preparation is offered nationally. You can choose from online classes that you download and take at your own pace, live online classes or on-site classes. Prices vary depending on the course, with the downloadable classes the least expensive. Kaplan offers a guarantee that your GMAT score will improve or your money will be refunded, and they've been doing GMAT preparation classes for more than 40 years.
The Princeton Review is another national company that offers a number of GMAT preparation options. There's one-on-one tutoring, small group tutoring and live on-site classes and live and recorded online classes. The Princeton Review also publishes books on preparing for the GMAT and provides free online practice tests.
Knewton's test preparation programs use adaptive learning technology, which means that the content and difficulty level increases or decreases depending on your performance. The classes are taught online in real time and start on a rolling basis. Knewton offers a money-back guarantee that your score will increase by at least 50 points. Knewton is geared for students who learn best independently.
Veritas Prep offers individual tutoring, live classes and online classes. Veritas is focused on the number of classroom hours, providing 42 classroom hours to students. They offer live classes in 90 cities and 20 countries and a money-back guarantee. Veritas also publishes its own study guides. Veritas is ideal for students who do best with classroom instruction.