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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 4.6
Nexient is America's largest 100% US-based Agile software services firm. Nexient's teams of developers, designers and strategists use a product-minded approach to accelerate revenue, loyalty and growth for Fortune 500 and fast-growing tech companies. A Gartner Cool Vendor and HFS Hot Vendor, Nexient is the only US tech firm among IAOP's Top 100 Outsourcers in the World.
Zippia score 4.5
Zippia score 4.4
Kaiam is a private company commercializing photonic integrated circuits. In plain language, they specialize in the design and manufacture of gadgets that help transmit and receive data at very high speeds. The most common application for their products are warehouse-scale data centers, i.e. "the cloud."
Zippia score 4.3
Kateeva (formerly TJet Technologies) is driving new advances in OLED production technology. Our inkjet printing manufacturing equipment solution enables flexible and large-size OLEDs to be produced over large areas and in high volume - with longer lifetimes, higher yields and lower production costs. It's the first economically viable and production-worthy technique to use printing for low-cost mass-production of OLEDs - which means big innovation for the display industry. And for consumer electronics fans, it means those spectacular 55” OLED TVs will soon be within reach, and cool paper-thin, ultra-light wearable computing products will dazzle with extra smarts and smaller form factors. At our LinkedIn home, we'll keep you up-to-the-minute on our tech milestones and latest moves. And since we're huge fans on all-things OLED, we'll occasionally add other cool technology stuff that inspires us to out-invent - even ourselves!
Zippia score 4.1
Our mission is to accelerate the transformation of enterprise IT by changing the performance and economics of enterprise storage. Our flash storage arrays, with patented IntelliFlash architecture, deliver high I/O and low latency for business applications such as databases, server virtualization and virtual desktops. Our customers achieve business acceleration and unmatched storage capacity reduction.
Zippia score 3.8
Zippia score 3.7
InCarda Therapeutics is a clinical stage drug delivery company pioneering a novel approach of treating acute cardiovascular diseases/conditions by the inhalation route. Lead product is InRhythm, an inhaled formulation of an antiarrhythmic drug to treat acute paroxysmal atrial fibrillation events within minutes at home, at work, or anywhere. Completed Phase 1 and currently advancing lead product through Phase 2.
Zippia score 3.7
Hospi Corporation improves quality of life by innovating practical, high impact medical devices that enhance patient comfort and wellbeing, ease caregiver burden, and reduce cost. Hospi understands the needs of patients living with serious or terminal illness - and the caregivers who treat them. Our patient-centric focus is informed by a nursing perspective and has guided the development of Hospi's first product, the Macy Catheter , which has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) and is now available in the United States. The Macy Catheter was invented by Hospi co-founder Brad Macy, a 20-year hospice nurse veteran, who leveraged his experience to address the need for a product to help improve patient comfort and wellbeing. The Macy Catheter is a simple, patented and innovative medical device designed to facilitate discreet and comfortable rectal administration of liquids or medications. The rectal route of administration is relevant, yet underutilized, in the hospice, palliative care and home health settings. It is particularly useful for management of symptoms when a patient has difficulty swallowing or the oral route is otherwise compromised.
Zippia score 3.7
CellScape Corporation (formerly Saryna Medical Corp) is a privately funded company headquartered in Newark, California, in the heart of the biotech corridor of the San Francisco Bay Area. The Company has developed whole fetal cell technology to transform prenatal genetic testing using a simple blood test. Their vision is to make comprehensive prenatal genetic testing available to every woman without requiring an invasive procedure that might put the fetus at risk. Their leadership team is accomplished in bringing innovative, cost-effective medical and molecular diagnostics to market.
Zippia score 3.4
Harvesting provides online software as a service (SAAS) which allows stakeholders in agriculture value chain to view, analyze and manage their agri-climatic business risk via data collection, data analysis, and data reporting.
Zippia score 4.0
GrubMarket develops a website where sellers can offer foods and other items at wholesale prices to customers. It offers products such as organic foods, vegetables, gluten-free foods, snacks, drinks, pantries, home goods, health and beauty products, baby and kids' products, pets, non-GMO foods, paleo foods, cholesterol-free, and no trans-fat foods. GrubMarket also offers foods from local farms, fisheries, commercial kitchens, certified home kitchens, and restaurants. Mike Xu founded GrubMarket in 2014, with its headquarters in Newark in California with an additional office in San Francisco in California.
Zippia score 3.6
Katerra is a technology company optimizing every aspect of building development, design, and construction. The global team includes leaders in design, software and building engineering, manufacturing, supply chain, and construction. Founded in 2015, Katerra has a growing number of domestic and international offices, factories, and building projects.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Nexient | |
| 2 | Cognitive Logics | |
| 3 | Kaiam | |
| 4 | Kateeva | |
| 5 | Tegile Systems | |
| 6 | CalStar Products Inc | |
| 7 | InCarda Therapeutics | |
| 8 | Hospi | |
| 9 | CellScape | |
| 10 | Harvesting |