Our Story
TMC was founded in 1987 and quickly became a industry-leading technology consulting firm in Minnesota. During the early days of TMC, we worked with most of the big names in Minneapolis and began expanding into other states. In the early 2000s, TMC opened up services for IT, AV, Communications and Security (Division 25, 27 & 28) Design and became a full service technology consulting and design firm.
Since then, we have advised on and designed sophisticated converged technology infrastructures for airports, sports stadiums, hospitals, government facilities, Fortune 500 companies, K-12 school districts and higher education colleges/universities.
Our team of consultants and designers are among the most experienced and highly qualified in our industry. Whether they’re supporting you from our Minnesota headquarters, one of our many offices across the U.S., our team’s first priority is making sure your technology meets your goals.
Chief Executive Officer
Alyssa O'Brien
With over a decade at TMC, Alyssa has played a key role in high-profile IT initiatives, strategic partnerships, and reinforcing TMC’s reputation as a trusted partner in technology transformations, cybersecurity initiatives, AI transformation and technology infrastructure design. As CEO, Alyssa is dedicated to upholding TMC’s legacy of innovation, integrity, and client-focused solutions.
Founder & Principal
Cheryl O'Brien
With 40+ years of experience, Cheryl has led IT consulting for governments, airports, financial institutions, healthcare, and enterprises. She specializes in WAN, IP networking, VoIP/SIP, business continuity, disaster recovery, data centers, cloud services, and NOCs. An expert in contract risk, compliance, and mitigation, she has achieved 42% average cost savings through strategic negotiations. She manages projects from design to implementation, aligning technology with business goals for optimal performance and efficiency.
Principal, Design & Consulting
Ted Siska
With over 35 years of IT experience, Ted specializes in designing technology, AV, and security layers for architecture projects. He integrates on-premises infrastructure, cloud services, and carrier networks, with expertise spanning ACS, CCTV, AV, telephony, contact centers, RF technologies, WFO, WLAN, LAN/WAN, and cybersecurity. His extensive public-sector experience ensures seamless, high-performance system design for complex environments.
Principal, Cyber Division
David Kim, B.S.E.E.
Over 35 years providing IT security and GRC services to government, airports, financial institutions, healthcare, and other industries worldwide. He specializes in board-level presentations, vulnerability assessments, penetration testing, and compliance audits using frameworks like NIST, ISO, HIPAA, PCI DSS, and SOX. He is also skilled in incident response, CSIRT training, real-time monitoring, and third-party risk assessments.
Chief Revenue Officer
Brendon O'Brien
Over 10 years of expertise in program management, business development, and relationship building, delivering solutions for Fortune 500 companies and government entities. Specializing in telecom, networks, cybersecurity, DAS, and wireless, he advances the industry by fostering future talent through cyber safety and career programs. His proactive approach and focus on lasting partnerships drive exceptional results.
Our Leadership
Areas of Our Services
Technology Consulting
Technology / AV Design
Cyber Security
National Coverage with Local Expertise
We've delivered projects across the globe for workplaces, government buildings, educational facilities, hospitals, stadiums and community venues.
Procurement Made Easy
Our SLED and Federal resources allow us to simplify procurement for clients. These pre-approved purchasing vehicles eliminate the need for lengthy RFP processes, ensuring compliance and reducing overhead.
State/Local Contracts
State and County level contracts in both Minnesota and Florida that can be used for easy purchasing of our services.
Federal GSA Schedule
Federal GSA Contract for SIN 54151S under Schedule 70 that can be utilized for any federal project requirements.
Extensive SLED Experience
Nearly four decades of experience working with SLED clients having services over 1,200 different SLED entities.
WBE/DBE/SBE Certifications
Woman-owned, small, disadvantaged certified in nearly all 50 states. We can help achieve direct diversity goals where needed.
Trusted Experts
We simplify complex technology systems through expert Technology Consulting, IT/AV Design, and Cybersecurity services. Our tailored strategic guidance address current challenges while preparing our clients for future growth and security needs.