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We figured out the best start-up companies to work for in Illinois using data on salaries, company financial health, and employee diversity. You can also search for the best start-up companies to work for in any other state or city.

Zippia score 4.2
Vital Proteins helps people feel better and live fuller lives through sustainably-sourced nutrition products, promoting health, fitness, and natural beauty. Vital Proteins engages in providing natural, whole food proteins that support animal well-being and sustainable eco-friendly practices.
Zippia score 4.0
Protein2o provides drinks that promote a healthy, active lifestyle through the daily use of protein. It is a refreshing low calorie, low carb alternative to protein shakes packed with empty calories, carbs, and sugar. Protein2o uses the purest whey protein isolate made with ion-exchange technology and provides 110% of essential Amino Acids. With 15g of protein in each bottle, Protein2o provides the fuel your body needs each day to perform at its best. It was founded in 2013 and is headquartered in Elk Grove Village, Illinois.
Zippia score 3.8
Aurea is the first energy efficient, healthy LED lighting that addresses both psychological and biological needs.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Vital Proteins | |
| 2 | Protein2o | |
| 3 | Aurea Lighting |