Business and Aviation Security Solutions

Your Security Experts

Meet the


The Welsh-Sullivan Group LLC maintains strategic alliances with independent security consultants around the world who are accomplished professionals in their fields of expertise.  The Welsh-Sullivan Group LLC is also a founding member of the Aviation Security & Safety Advisors Network.

Community Engagement




Medical Research

Guest speaker appearances and member of groups committed to safety around the globe
PGA's RBC Heritage Golf Tournament Patron Sponsors in 2014-2016 to support local Hilton Head nonprofits and military charities
Serving local schools and nonprofits through volunteering and monetary donations that focus on Special Education/ Post-Graduation and Title I Schools
Volunteer work and monetary donations to nonprofits and organizations that support cancer research

Get in 


We look forward to hearing from you!
Please contact John L. Sullivan, Managing Partner, by phone, email, mail or our contact form.

Welsh-Sullivan Group LLC

5000 Eldorado Pkwy, Suite 150

PMB 294

Frisco, Texas 75034


Security Consultants to Corporate Security and Business Aviation

Licensed by the Texas Private Security Board, License # C16616

A+ rating, Better Business Bureau of North Central Texas

© 2019 Welsh-Sullivan Group LLC

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