Built by Engineers.
Trusted by Industry.
Since 2014, we've delivered precision drone inspection services to the utility, energy, and infrastructure sectors — with a safety record and data quality that sets the industry standard.
Eliminate Risk.
Deliver Certainty.
Critical infrastructure keeps the lights on, water flowing, and economies moving. When it fails, the consequences are severe. Our mission is to give asset owners the inspection intelligence they need to prevent failures before they happen — without putting a single person at risk.
We combine FAA-certified flight operations with structural engineering expertise to produce inspection data that meets the standards your engineers, regulators, and insurers demand. Not just drone footage — actionable engineering intelligence.
Safety First
Zero lost-time incidents across every operation we have conducted. Safety is non-negotiable.
Engineering Rigor
Every report reviewed by a licensed PE before delivery.
Client Partnership
Dedicated project engineer on every engagement. One point of contact.
Nationwide Reach
18 states covered. 72-hour mobilization from anywhere in the continental U.S.
A Decade of Precision
Founded in Houston, TX by Robert Callahan with a team of 4 FAA-certified pilots.
Secured first utility-scale contract with a major Gulf Coast energy operator. Expanded to 12 states.
Achieved ISO 9001:2015 certification. Launched proprietary thermal analysis reporting platform.
Crossed 1,000 completed inspections. Added wind turbine and solar farm inspection programs.
Expanded to 18 states. Partnered with three of the top 10 U.S. electric utilities.
Surpassed 2,400 inspections with zero lost-time safety incidents. Launched 48-hour report guarantee.
The Team Behind the Data
Engineers, pilots, and operations professionals with decades of combined experience in infrastructure, aviation, and asset management.
Robert Callahan
Former FAA safety inspector with 18 years in aviation and infrastructure engineering. Founded DII in 2014 after identifying a critical gap between traditional inspection methods and modern data demands.
Priya Nair
Operations leader with a background in utility asset management at Pacific Gas & Electric. Oversees nationwide mobilization, client delivery, and quality assurance across all inspection programs.
Derek Osei
Structural engineer specializing in bridge and tower assessment. Developed DII's ASTM-compliant inspection methodology and leads all engineering deliverable review before client release.
Lena Vasquez
OSHA-certified safety professional responsible for all flight operations safety protocols, regulatory compliance, and incident prevention across DII's nationwide field teams.
Compliance You Can Count On
Ready to work with our team?
Request a quote and a project engineer will respond within 5 business hours.