Start by outlining your goals, objectives and expectations for an offshore staff augmentation provider. Then research different companies, and look at their previous work and reviews from other customers to ensure they are credible providers of offshore staff augmentation for startups and tech companies. Word-of-mouth recommendations are also useful to get a better idea of what to expect when working with certain companies. Finally, once you've found a few possible options that match all your criteria; check on factors such as their pricing plans to find the best fit for you.