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Mobile, Web, and AI Development

Semaphore Mobile is a Dallas-based software development firm specializing in custom web, mobile, AI, and IoT solutions. Since 2002, we’ve helped companies design and build scalable digital products that solve real business problems, from consumer-facing mobile apps to complex internal platforms and connected device ecosystems.

  • Min project size
    $5,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Plano, TX
  • Year founded
    Founded 2002
  • Languages

Overview by:

Reviewer avatar
Jonah Silverthorn
Director of Sales and Operations About the Team

1 Language that we service

  • English

1 Locations

  • Plano , TX

Industries
Business services
20%
Consumer products & services
15%
Energy & natural resources
10%
Financial services
10%
Medical
10%
eCommerce
10%
Advertising & marketing
5%
GPS, Navigation & GIS
5%
Information technology
5%
Manufacturing
5%
Media
5%
Clients
Midmarket ($10M - $1B)
50%
Small Business (<$10M)
40%
Enterprise (>$1B)
10%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.9 /5

What Clients Have Said

Semaphore Mobile is praised for their competitive pricing and strong value for cost. Projects range from $7,000 to $100,000, with clients appreciating their responsiveness and project management. Many clients highlight satisfaction with deliverables and ongoing support, indicating good ROI.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 15 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Semaphore Mobile Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Adaptable and Flexible Approach

    Semaphore Mobile's flexibility in adapting to client needs and working with existing systems or teams is highly valued. They have proven capable of integrating into ongoing projects smoothly.

  • Cost-Effective Services

    Several reviews highlight Semaphore Mobile's competitive pricing and value for money, making them an attractive option for businesses seeking budget-friendly development solutions.

  • Strong Customer Communication

    Semaphore Mobile is noted for excellent communication skills. They maintain constant contact with clients through various channels, ensuring clarity and quick responses to queries and issues.

  • Effective Problem Solving

    Semaphore Mobile is recognized for their ability to address complex issues and provide effective solutions, often stepping in where previous developers have failed.

  • Minor Suggestions for Improvement

    One client suggested more regular meetings for an all-hands-on-deck approach to enhance project scope discussions. This indicates a potential area for increased client engagement.

  • Strong Understanding of Client Vision

    Semaphore Mobile excels at understanding and executing the client's vision, often translating complex ideas into successful products that align with client goals.

Semaphore Mobile Reviews

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Custom Software Development for SaaS Company

  • Custom Software Development
  • $50,000 to $199,999
  • Jan. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I love the laid-back yet professional way the staff interacts with us. They are a joy to work with."

Feb 15, 2022
Technology Manager, SaaS Company
Anonymous
Verified
  • Other industries
  • West Monroe, Louisiana
  • 1-10 Employees
  • Online Review
  • Verified

Semaphore Mobile was hired by a SaaS company to help resolve complex issues within their software. The team has delegated two developers to provide software development support for the client.

Showing 21-21 of 21 Reviews

Our Story

Founded in 2002, Semaphore Mobile was the first mobile development firm in Texas, beginning in telecommunications and building systems for Nokia and BlackBerry. In 2007, ahead of the App Store launch, we built and launched Craigslist’s mobile app. Since then, our team has contributed to projects for GasBuddy, ACE Cash Express, Transamerica, Google, and more. Today, we continue to evolve with our clients, providing expert mobile, web, IoT, backend, QA, and design services.

Meet the Team

Eric Silverthorn

Eric SilverthornCEO

Eric brings deep technical leadership and decades of experience building software systems across mobile, web, IoT, and backend platforms. Since Semaphore Mobile’s early days, he has helped guide the company through major shifts in technology, from ea

Jeff Owens

Jeff OwensDirector of Technology

Jeff plays a key role in leading client strategy, project planning, and delivery at Semaphore Mobile. With a strong understanding of both business goals and technical execution, he helps clients clarify requirements, prioritize features, and move pro

Jonah Silverthorn

Jonah SilverthornDirector of Sales and Operations

Jonah helps lead client relationships, sales, and project discovery for Semaphore Mobile. He works closely with clients to understand their goals, define project scope, and connect them with the right technical resources across mobile, web, IoT, back

What Sets Us Apart

20+ years of development experience

We are not just developers. We are product partners with 20+ years of experience turning complex ideas into real software. From early mobile systems to apps used by millions, we know how to guide strategy, design, development, QA, and launch with clarity and accountability.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
18
Overall Review Rating
5
Source
Clutch
Last Updated
June 23, 2026

Business Entity

Business Entity Name Semaphore Mobile, LLC
Source Texas Comptroller of Public Accounts
Jurisdiction of Formation Texas
Date of Formation February 13, 2008
Status Active
Last Updated December 15, 2022
ID 0800937352

Credit Report Results

International Credit Risk Assessment Low Risk
Source Creditsafe
Last Updated December 15, 2022
Learn More About The Clutch Verification Process

Locations (1)

5960 W. Parker Road Suite 278 #134 PlanoTX, United States 75093

10 - 15

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