Equipment and materials,
sourced by people who
install what they sell.
Plexus Group supplies electrical materials, structured cabling, networking equipment, cellular DAS hardware, and security components across the Mid-Atlantic Region. We know what works on the job site because our own crews install it every day.
Sourced by installers
We spec and install the same products we sell. No guesswork on compatibility.
Government-ready
Certified MBE and SBR supplier. NAICS 423430 & 423610 registered.
Bundle with installation
Buy material and installation together. One PO, one company responsible.
Procurement & delivery
We procure, deliver, and install. Site delivery managed by our team.
What We Supply
Six primary categories covering the full scope of electrical, communications, and security infrastructure. Pricing on request against your project specs.
Electrical Materials
- THHN/THWN wire, MC cable, feeders
- EMT, rigid, PVC conduit and fittings
- Panels, circuit breakers, disconnects
- Switchgear and distribution equipment
- Lighting fixtures, drivers, and controls
- Generators and ATS units
Structured Cabling & Fiber
- Cat6A and Cat6 bulk cable, shielded & unshielded
- Fiber optic cable — OS2, OM4
- Patch panels, keystone jacks, faceplates
- Cable management, trays, J-hooks
- Racks, enclosures, and telecom room hardware
- OTDR test equipment and certifiers
Networking Equipment
- Cisco Catalyst switches — including 9300 series
- Cisco Meraki routers and security appliances
- SFP and network modules, DNA licensing
- Wireless access points and controllers
- Routers, firewalls, and edge appliances
- KVM switches and rack accessories
Cellular & DAS Equipment
- Cel-Fi Quatra 4000 systems (NU, CU, fHub)
- ½” foam-fill PE coaxial cable
- Omni and donor antennas
- N-Male connectors, power dividers, splitters
- Antenna mounts and enclosures
- DAS components for AT&T, T-Mobile, Verizon
Security & Access Control
- IP cameras, housings, and enclosures
- Video management systems and NVRs
- Access control panels, readers, and credentials
- Door contacts, REX devices, and hardware
- Intrusion detection panels and sensors
- Fiber and coax for camera runs
ITS & Outside Plant
- PLC and RCU components
- Roadside cabinets and enclosures
- Tolling and enforcement camera hardware
- HDPE conduit, innerduct, handholes
- Direct-burial cable and armored fiber
- Concrete anchor hardware and fasteners
Equipment We Know
These are products our field crews have installed on government and commercial jobs — not catalog additions. When you buy through Plexus, someone on our team has already commissioned it.
Cisco Catalyst 9300 Series
Layer-3 managed PoE+ switches installed across 13 MCDOT parking facilities in Bethesda and Silver Spring.
Cisco Meraki MX450
Enterprise router and next-gen firewall with advanced security license. Deployed at Silver Spring PLD hub facilities for MCDOT.
Cel-Fi Quatra 4000 System
Enterprise DAS for AT&T, T-Mobile, and Verizon. Installed in MCDOT underground garages — RF-designed with iBwave.
Cat6A & OS2/OM4 Fiber Systems
Bulk cable, patch panels, connectors, splice enclosures. Specified and certified on government and education projects to TIA-568 standards.
Electrical Distribution & Feeders
Panels, feeders, switchgear, and distribution equipment. We supplied and installed 400A feeders with 108 circuits at Camden Yards.
Fire Alarm Systems & Components
Panels, initiating devices, NACs, and notification appliances. We have modernized occupied university dormitories with Simplex 4100ES.
How to Order
Send us your specs
Share your project drawings, equipment list, or bid package. We review the technical requirements and identify the right products.
Receive a quote
We return a line-item quote with make, model, part number, and lead time. Public-sector pricing available on applicable contract vehicles.
We procure & deliver
Once approved, we procure, coordinate delivery, stage materials at your site or our warehouse, and document what arrived.
Installation (optional)
Bundle with our installation crews for a single-contract delivery. One PO, one schedule, one company answerable for the result.
Bundle supply with installation
Buying the material is the easy part. Getting it installed correctly, on schedule, and documented at closeout is where projects save or lose money. Plexus Group can carry both under a single contract.
- One submittal package for material and installation
- Installation crews who spec’d the equipment
- Commissioning, testing, and as-built documentation
- MBE participation on both material and labor spend
Request a Quote
Tell us what you need. We’ll respond within one business day with pricing, lead time, and availability. Urgent requests: call (410) 777-8233.
Buying from the integrator, not the distributor
A general distributor will sell you whatever is in stock. Plexus will tell you what to buy, why, and what it needs to interface with — because we already spec’d the same system for a government client last quarter.
We source from authorized distributors of Cisco, Cel-Fi, Belden, CommScope, Corning, Eaton, and other manufacturers we install daily. Our pricing is competitive, our specifications are accurate, and if something is wrong, there’s one phone number to call.
MBE-certified supply & procurement
Plexus Group is MDOT MBE #08-286, Maryland Small Business Reserve, and Virginia SWaM & DBE #652823. Purchases from Plexus count toward MBE/SBR subcontracting goals. We issue certified payrolls, affidavits, and documentation required on public procurements.
423430 — Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
423610 — Electrical Apparatus & Equipment, Wiring Supplies and Related Equipment Merchant Wholesalers