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We figured out the best start-up companies to work for in California 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 4.4
We build light that transforms. At Bridgelux, we help companies, industries and people experience the power and possibility of light. Since 2002, we've designed solid-state lighting solutions that are high performance, energy efficient, cost effective and easy to integrate.
Zippia score 4.1
Sandstone Diagnostics is a Bay Area biotech company developing instruments and consumables for point-of-care medical testing. Sandstone's lead product, Trak, is a consumer semen analysis platform that provides a simple and accurate way to monitor sperm quality from the comfort of home. Trak is a tool for men to take charge of their fertility, boost their sperm quality, and improve their chances of conception. Sandstone was co-founded in 2012 by PhD scientists developing medical technologies for national defense applications at Sandia National Laboratories.
Zippia score 4.0
Vericool is a provider of cold chain packaging services intended to manufacture compostable coolers for sustainable shipment, storage and delivery. The company's services offer a line of packaging products that include customized, compostable, recyclable, sustainable and eco-friendly shipment boxes that have inbuilt temperature sensors for long-time storage, enabling logistics and warehouse operators to improve cold chain shipping of non-durable goods without depending on external freezers.
Zippia score 3.7
Proof Smart Food is provides healthy high protein foods that taste amazing. Their mission is to make a profound effect with the number one problem in US History one person at a time. About 12 years ago, fat was given a bad rap; and sugar levels doubled in this country. 75% of the adult population is challenged and sadly over 35% of their children are met with some form of weight challenge, many of them obese. So many diseases are tied to weight and sugar intake. Diabetes and high blood pressure come to mind first hand with over 600,000 deaths per month in the US from sugar related diseases. The answer is creating a high protein diet and lowering sugar intake without a “diet”. They are blogging medical research weekly to back this up. Their desire is to create a lifelong lifestyle full of great tasting foods, comfort foods; and life free of food guilt. They started with GREAT TASTING cookies which consist of 16 grams of Protein in Chocolate Chip and Oatmeal Raisin with NO ADDED SUGAR. This is a quantum leap as they have more Protein than carbohydrates
Zippia score 4.2
ChargeItSpot saves consumers from their constantly dying phones with free and secure phone charging stations. This locker-based solution can be found in retail stores, malls, casinos, hospitals, and arenas. In retail stores, it's been independently proven that when people charge, they shop longer, spend significantly more, and become happier customers. Many clients use ChargeItSpot as an out-of-home branding platform to win consumer affinity, increase brand awareness, and collect key consumer data such as opt-in email addresses, mobile numbers, and survey responses. ChargeItSpot charging stations are elegantly designed and can be customized to fit any aesthetic. ChargeItSpot serves clients such as Neiman Marcus, Nordstrom, Under Armour, Uniqlo, Westfield Malls, Caesars Entertainment, Verizon Wireless, Dell, and dozens of other customer-centric brands. Visit ChargeItSpot.com for more info or download the mobile app for ChargeItSpot locations.
Zippia score 3.7
The Wand wine filters effectively remove the agents in wine known to cause side effects, such as headaches and allergic reactions.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Bridgelux, Inc. | |
| 2 | Sandstone Diagnostics | |
| 3 | Vericool | |
| 4 | Proof Smart Food |