Hello!
If you are also considering outsourcing, you'll see that there are plenty to choose from. I'm here to offer you contact MobiDev (https://mobidev.biz). It's a software-development company with offices in several countries, one of them is in San Francisco.

Hi. I can put you in contact with the CEO of Bulbera (www.bulbera.com). They have done quite a good projects for some of the TOP names in the business.
Are you interested?

Hi

Hope you are doing well. I am co-founder for a web development and mobile application development start up and a coupons/deals company based in India.
We do have a team of 15 excellent programmers, and 3 testers.
So, let me know if we can discuss about your project. We have a name in market for timely and reliable deliveries.