About Semaphore Mobile

Semaphore Mobile, founded in 2002, specializes in the development of custom application software for iPhone, iPad, and Android mobile devices.

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Semaphore Mobile APPlying 10 Years of Expertise to Support Startups!


Dallas’ Startup community is celebrating itself this week as Dallas Startup Week 2018 begins.  For five days from early morn til the wee hours strike, founders and funders, hopefuls and hiring types will make their way from Uptown through Downtown and far up to Frisco with events dotted along the way.

Semaphore Mobile not at all a startup – the company celebrating 10 years and nearly 400 iPhone and close to 300 Android apps developed is proud to be a part of DSW ’18 and all connected!

From the time that Semaphore’s previously produced for private sector clients “productivity tools” became known as apps – with the launch of the Google Store and AppStore providing a market for the greater public to enjoy –  Semaphore’s founder and president Eric Silverthorn has remained present in all areas of the market.

Semaphore Mobile’s locally based team, with admin and project development management and developers local, is of great benefit.  “About 20 percent of our customers have come to us as a second resource, their first ‘across the pond,’” said Silverthorn.  “It very rarely is cheaper, faster, or better when outsourcing development projects and we’re proud to have our team here in the Dallas area, available when our clients need to reach us.”

Starting up is something Silverthorn knows much about – his career starting as a radio engineer then morphing into a satellite systems designer.  Traveling the globe, 100+ countries in a few short years, Silverthorn was a pioneer in that industry as well.

Still, connecting to Dallas’ Startup community has been about learning, teaching, and growing.  Meeting new faces, and learning about new product and resource, has made for new clientele – referrals – and relationships.  “Being out there and getting to know who are the up-and-comers, and seeing who we can help succeed is what it’s all about,” said Silverthorn.  “As an entrepreneur, you are always starting, growing, and building.  The day you think you are above those coming in – you’ll be on your way out.”

Taking the capabilities he once offered to clients around the world to be in touch with their teams, Silverthorn, who is a Houston native who has made North Texas his home since 1990, and Semaphore Mobile have made startups its sendup.

“We’ve worked with companies large and small and there’s almost no area we haven’t addressed,” said Silverthorn, noting that games are the only format not in his wheelhouse.  “From health to shopping, food plans to plumbing inventory and music programming – we’ve done it all and we’re always looking or the next great challenge.”

To reach Semaphore Mobile, call 972.679.7165, email  [email protected], or visit SemaphoreMobile.com