The companies listed here offer Printed Circuit Board prototyping services and have offices in the DC area. The company descriptions were taken from each company's website, which was active as of September 2009. This list is intended to be a resource for HACDC members and should not be taken as an endorsement by the group.
 Agris-Schoen Vision Systems, Inc.
|Address:||PO Box 2206, Merrifield, VA 22116-2206, USA|
|Description:||We are system integrators for customized, turn-key, machine vision systems based on a variety of software packages such as: XCaliper (edge detection, dimensioning, and pattern recognition), Cognex, WiT, Sherlock and others.|
 Associated Design & Manufacturing Company
|Address:||8245 K Backlick Rd, Lorton, VA 22079|
|Description:||Associated Design specializes in custom manufacturing that includes engineering, reverse engineering, value analysis, prototype manufacturing, engineering environmental testing equipment, medical instrument design and development, production runs, underwater photography equipment and diving accessories|
 Capital Electro-Circuits, Inc.
|Address:||7845-I Airpark Road, Gaithersburg, MD 20879|
|Description:||We are a leading supplier of quality printed circuit boards at the lowest cost to the Electronics Industry. Printed Circuit Board design, manufacturing and assembly.|
 CR International
|Address:||9105 Whiskey Bottom Rd, Suite J, Laurel, MD|
|Description:||CR International, an ISO9001:2000 company, is a premier Electronics Manufacturing Services Provider in our nations' capital region. CRI Specializes in High Density electronics design and assembly for Defense and Government agencies, as well as high speed communications equipment|
 Custom Electronics Company, Inc.
|Address:||7851 Airpark Road, Gaithersburg, Maryland 20879|
*'Re-Engineering Services * Proto-Type Production ** PCBA/Cable/Sub-Assy/Assy/Unit/System ** Turn-Key/Consignment ** ISO 9001 QMS Registered Company
 Data Design Corporation
|Address:||7851A Beechcraft Ave., Gaithersburg, Maryland 20879|
|Description:||Data Design is an electronic hardware design and manufacturing company, providing cost effective, customized, modular solutions for embedded computing, instrumentation, radio frequency, signal processing, and power management. Focusing on standard and custom modular electronic hardware, the company has developed a strong archive of designs which can be quickly adapted to unique needs.|
 EIT, Inc.
|Address:||108 Carpenter Drive, Sterling, VA 20164|
|Description:||Prototype assemblies are a natural extension of EIT's design activity or can be provided as a stand-alone service. Prototypes are assembled using our automated production equipment, or by hand depending on timing and cost considerations. Prototype services are provided on a consignment or turnkey basis depending on your requirements. Quick response is a key element of our prototype assembly service.|
 Electronic Contract Assemblers
|Address:||5711-24 Industry Lane, Frederick, MD 21704|
|Description:||Electronic Contract Assemblers provides quality, affordable contract assembly services. ECA fills a niche left vacant by the tier 1 contract assemblers. We seek out customers who have been neglected by larger contract assemblers because their lot size was too small. Whether you are looking for a prototype assembly of 1 unit, or a production run of 1000 boards, we have the capability to provide you with quality, cost effective service for your needs.|
 Modern Machine & Tool Company Inc.
|Address:||11844 Jefferson Avenue, Newport News, Va. 23606-2587|
|Description:||Our capabilities range from sophisticated mechanical/electronic engineering and design to production machining of precision components.|
 Procyon PCB, Inc.
|Address:||2019 Jolly Road, Baltimore, MD 21209|
|Description:||Procyon PCB, Inc. is a small business that can offer design engineers a test prototype pcb with minimal restrictions. Our prototypes will be similar to the electrical characteristics and constraints that are being designed for and are required in today's high speed and RF circuits.|
 Small Batch Assembly
|Address:||c/o NoVa Labs, 1881-G Metro Center Drive, Reston, VA 20190, USA|
|Description:||Affordable Low-volume Electronics Assembly: Small Batch Assembly is a low-volume, no-frills, electronics assembly service. We focus on the needs of Makers, Educators, DIY, Researchers, and EE professionals; Anyone needing a low-volume of surface-mount technology circuit boards assembled.|
 TIC Technology Information Corporation
|Address:||19566 Club House Road,Montgomery Village, Maryland 20886 USA|
|Description:||Manufactures soldering equipment.|
 Zentech Manufacturing, Inc.
|Address:||6980 Tudsbury Road, Baltimore, Maryland 21244|
|Description:||Zentech provides comprehensive supply chain services to markets with high complexity or high reliability manufacturing requirements. In addition, our design engineering teams provide a full range of hardware and embedded software services from initial product design, compliance engineering and testing through end of life sustaining engineering and support.|
--Dcooper 22:20, 26 September 2009 (UTC)