G2 is a review platform for business software. It hosts over 2 million verified reviews across more than 145,000 products, covering categories like CRM, project management, marketing automation, and HR tools. Each product page shows a grid of user ratings on specific criteria, pros and cons, and comparisons to competitors. The reviews come from verified users, which reduces the chance of fake or promotional content.

For teams evaluating software, it's one of the most comprehensive sources of peer feedback available. You can filter by company size, industry, and region to find reviews from users similar to your situation. G2 also publishes quarterly Grid reports that rank products by category. The free tier gives full access to reviews, while vendors pay for enhanced profiles and lead generation tools.