Electronic Manufacturers Representative
HM Technical Sales is a Southern California-based manufacturer’s representative connecting engineers, designers, and purchasing teams with vetted suppliers for cable assemblies, PCBs/PCBA, plastic thermoforming, custom packaging, sheet metal enclosures, CNC machining, and contract assembly. Backed by 30+ years of combined engineering, sourcing, and manufacturing experience, we help bring products to market faster with reliable, cost-effective solutions. Best-fit partners: OEMs and manufacturers in medical, aerospace, defense, security, industrial, and gaming sectors needing a single-point engineering and procurement partner.
HM Technical Sales is a sales and marketing manufacturer’s representative firm based in Westlake Village, California, serving the high-tech electronics manufacturing industry across California, Nevada, and nationwide. The company acts as a bridge between engineers, designers, manufacturing teams, logistics and supply chain managers, and purchasing personnel on one side, and a network of vetted U.S.-based manufacturing and supplier partners on the other.
Core service areas:
- Engineering & Design Support — Acting as an extension of understaffed in-house engineering teams, helping clients design products and bring them to market on time.
- Cable Assemblies — Custom cable and wire harness assembly solutions.
- PCBs & PCBA — Printed circuit board fabrication and assembly.
- Plastic Thermoforming — Custom thermoformed plastic components.
- Custom Packaging Solutions — Tailored packaging for technical/industrial products.
- Sheet Metal & Enclosure Manufacturing — Precision sheet metal fabrication, custom and standard cabinets, enclosures, ladder racks, stamping, NEMA cabinets, kiosks, and 19″/23″ rack enclosures, delivered through partnerships with AS9100-certified fabricators.
- CNC Machining — Precision machined components.
- Contract Assembly & Prototyping — Supporting products from initial concept through full production launch.
Industries served: Medical, aerospace, military & defense, security, industrial, and gaming sectors.
Value proposition: The company positions itself around three pillars — engineering-driven consultation, trusted/vetted manufacturing partners, and cost-effective, scalable, on-time solutions — leveraging 30+ years of combined team experience in engineering, design, material sourcing, procurement, and sales to reduce lead times and avoid costly production delays for clients.
Leadership: Sepi Karandish (President/VP of Sales) and Harvey Magidow (Vice President).
Business model: As a manufacturer’s rep, HM Technical Sales doesn’t manufacture in-house ,it curates and manages relationships with specialized U.S. manufacturing partners, functioning as a single point of contact for clients who need multiple types of components or manufacturing services without managing several vendor relationships directly.

