Ivy Insiders | 8,265 followers on LinkedIn. Ivy Insiders (www.ivyinsiders.com) is a rapidly growing education start-up providing test prep and college admissions services to high school students around the country. To date, our proprietary “Game Theory” test-taking approach, taught online and in classrooms by Ivy League undergraduates, has already helped over 6,000 students raise their SAT and ACT scores.