Business Details
24 Years
experience
Emergency
services
Your Trusted Electrical & Technology Partner in Corona, CA
Semetra was founded in January 2002 with a vision to deliver cutting-edge electrical and technology solutions. Our team, led by CEO Mondo Marshall with 30 years of industry experience, specializes in innovative automation, security systems, and infrastructure projects. We serve clients across California and the Western United States, prioritizing a 'No Excuse' mindset that ensures exceptional service and long-term partnerships.Our BICSI-certified staff adheres to rigorous industry standards while providing tailored solutions for commercial, industrial, and enterprise clients. With 24/7 dispatch capabilities and a focus on structured cabling, fiber optics, and wireless systems, we consistently exceed client expectations through technical expertise and operational transparency.
Services
Electrical Contractors
Fiber Optic Cabling
Security Systems
Project Management
Wireless AP
Data Center Services
Audio Visual
Inside Plant
Outside Plant
Dispatch Services
Details
- Year established: 2002
Highlights and features
- We offer 20+ years of experience in electrical and technology solutions
- Our BICSI-certified team ensures industry-standard compliance
- 24/7 dispatch services for urgent infrastructure needs
- Specialized in structured cabling and fiber optic installations
- Serve California and Western United States markets
Associations and certifications
- BICSI
Services
Electrical Contractors
Semetra provides comprehensive electrical solutions for commercial and industrial projects. Our licensed C-10 contractors handle everything from power distribution to specialty installations. With BICSI-certified technicians and 20+ years of experience, we deliver code-compliant systems for biotech facilities, healthcare institutions, and enterprise clients. Our services include IDF/MDF support, volt-server installations, and temporary power solutions.
Fiber Optic Cabling
Our BICSI-certified team designs and installs single-mode and multi-mode fiber networks. We offer termination, splicing, and underground installation services with precision documentation. Using industry-leading equipment, we ensure optimal performance for data centers and campus environments. Our maintenance agreements include regular testing and certification to maintain network reliability.
Security Systems
Semetra designs integrated security systems featuring IP video surveillance, access control, and intrusion detection. Our engineers implement biometric identification, electronic gate systems, and AI-powered analytics. We provide full lifecycle support including installation, training, and 24/7 service agreements. Systems integrate with existing infrastructure while allowing future scalability.
Project Management
We manage complex technology deployments from planning to execution. Our PMI-aligned methodology ensures timely delivery for structured cabling, wireless networks, and data center builds. Services include resource allocation, risk assessment, and cross-team coordination. We handle projects of all sizes with transparent communication and budget control.
Wireless AP
Our wireless solutions support large campuses and multi-story buildings with secure, scalable networks. We deploy enterprise-grade access points and distributed antenna systems. Services include site surveys, RF optimization, and future-ready infrastructure planning. With 20+ years of experience, we ensure seamless connectivity for voice, data, and IoT devices.
People
Mondo Marshall
President & CEO
Mondo Marshall founded Semetra in 2002 with 30 years of electrical and technology industry experience. He leads strategic growth while maintaining hands-on project oversight. His expertise in infrastructure solutions drives the company's innovative approach to client challenges.
Questions
What services does Semetra offer?
We provide electrical contracting, fiber optic cabling, security systems, wireless networks, and project management services for commercial clients.
How long has Semetra been in business?
Semetra was founded in January 2002 and has served California and the Western US for over two decades.
Do you offer 24/7 emergency services?
Yes, our dispatch team provides 24/7 support for urgent infrastructure needs and system failures.
What areas do you serve?
We operate throughout California with project capabilities across the Western United States.
Are your technicians certified?
Our team includes BICSI-certified professionals and licensed C-10 electrical contractors.
How do you handle large-scale projects?
We use structured project management methodologies with dedicated teams for planning, execution, and quality control.
