Contract Manufacturing Services in Pennsylvania — Hanover, PA Since 1934
ISO 9001 Certified Turnkey Contract Manufacturing — Central Pennsylvania
Elsner Engineering is Hanover, PA's ISO 9001:2015 certified contract manufacturer serving Pennsylvania and Mid-Atlantic OEMs since 1934. From individual component assembly services to complete build-to-print manufacturing, our 112,000 sq ft facility in Central Pennsylvania scales with your production needs.
Our custom turnkey manufacturing services and private label assembly solutions free you to concentrate on your core business priorities. As one of the most established contract manufacturing companies in Pennsylvania, our production team builds to your exact specifications with strict quality control standards. Whether you need small volume, medium volume, or scalable production our contract manufacturing services in PA deliver consistent quality at every run.
Contact us at (717) 637-5991 to discuss your contract manufacturing requirements

Start Your Contract Manufacturing Project
From component assembly services to complete product assembly services and manufacturing — our team delivers the quality and reliability your business demands. Our industrial contract manufacturing services are designed to scale with your growth.
Phone: (717) 637-5991 Email: eew@elsnereng.com
Comprehensive Assembly Solutions
We provide scalable Pennsylvania contract assembly services that adapt to your changing production needs:
- Component Assembly Services: Precision mechanical assembly contract manufacturing of intricate mechanical and electronic parts
- Full Product Manufacturing: Complete build-to-print manufacturing services from raw materials to finished goods
- Private Label Production: Manufacture products under your brand with complete confidentiality
- Box Builds: Complex electro-mechanical assembly with testing and certification
- Kitting Services: Creating packaged component sets ready for assembly or distribution
Our turnkey contract manufacturing facility combines manual assembly expertise with automated systems to achieve optimal quality and efficiency for your specific requirements.
Schedule a facility tour to see our value added manufacturing services firsthand
Industrial Contract Manufacturing Services Across Multiple Industries
Our industrial contract manufacturing services serve Pennsylvania and Mid-Atlantic OEMs across numerous sectors:
- Industrial Equipment: Components and assemblies for manufacturing systems
- Medical Devices: Non-regulated device assembly with cleanroom protocols
- Electronics: PCB assembly integration with mechanical components
- Consumer Products: Turnkey contract manufacturing for consumer brands high-quality finished goods ready for retail distribution
- Automotive: Components and sub-assemblies meeting rigorous quality standards
- Aerospace: Precision parts assembly with comprehensive documentation
Each industry benefits from our attention to detail and specialized component assembly services refined over 90 years of precision production in Central Pennsylvania.
To learn more about our contract manufacturing services, contact our team today
Quality Management Throughout Production
Each industry benefits from our attention to detail and specialized component assembly services refined over 90 years of precision production in Central Pennsylvania.
- ISO 9001-aligned quality management system
- First article inspection with detailed documentation
- In-process quality verification at critical checkpoints
- Final testing and inspection before shipment
- Traceability throughout the contract manufacturing process
- Batch control and serialization when required
This systematic approach reduces defects, increases consistency, and delivers reliable products that meet your standards. As an ISO 9001:2015 certified contract manufacturer in Pennsylvania, our quality documentation satisfies the most demanding OEM requirements.
Flexible Production Capacity — Contract Manufacturers in Pennsylvania
Our contract manufacturing services in Pennsylvania accommodate your production volume requirements making us one of the most flexible contract manufacturers in Pennsylvania for OEMs at any stage:
- Prototype & Small Batch: Low-volume production runs for market testing
- Medium-Volume Manufacturing: Consistent medium volume contract
- Scalable Production: Capacity to grow with your market demand
- JIT Manufacturing: Scheduled production aligned with your inventory needs
- Seasonal Production: Flexible capacity for cyclical or seasonal products
This adaptability helps you manage inventory costs and optimize your supply chain through our value added manufacturing services without capital investment in equipment
Value-Added Manufacturing Services
Beyond basic assembly, we offer additional value-added manufacturing assembly solutions to streamline your product delivery:
- Design for Manufacturability Review: Feedback to improve production efficiency
- Supply Chain Management: Procurement of components and materials for contract manufacturing services in Central PA
- Inventory Management: Storage of components and finished goods at our Hanover, PA facility
- Packaging Design & Production: Custom packaging for your specific products
- Product Testing: Functional testing and verification
- Shipping & Logistics: Direct shipment to distribution centers or customers in Pennsylvania and throughout the Mid-Atlantic
These complementary services create a comprehensive custom turnkey manufacturing solution that reduces your management burden and accelerates time to market.
Ask about our complete contract manufacturing services packages

The Contract Manufacturing Process
Our structured approach creates smooth production from concept to delivery:
- Initial Consultation: We discuss your product requirements and production goals
- Manufacturing Plan: Our team develops a detailed product assembly services and production strategy
- Pilot Production: Small production run to validate processes
- Full Production: Scaling to your required volumes with consistent quality
- Continuous Improvement: Regular review to identify efficiency opportunities
- Delivery: On-time shipping to your specified destinations
This proven process minimizes surprises and maintains the high standards expected of professional contract manufacturing services in Pennsylvania.

Why Choose Our Contract Manufacturing Services
- Manufacturing Experience: 90+ years of precision production expertise in Hanover, PA
- Technical Capabilities: Advanced equipment for complex component assembly services
- Quality Focus: Rigorous standards and testing throughout production
- Flexibility: From small batch to medium volume contract manufacturing same quality throughout
- Communication: Regular updates and transparent project management
- Domestic Production: Made in USA with local support and shorter lead times
Partner with us to access professional contract manufacturing services in Pennsylvania without capital investment in equipment, facilities, and specialized staff.
Request a Manufacturing Consultation
Take the next step toward streamlined production. Contact us today to discuss how our contract manufacturing services can support your business growth and product quality.
Frequently Asked Questions
Our clients often ask these questions about our contract manufacturing services in Pennsylvania. For additional information, please contact our team directly
For additional information, please contact our team directly.
We manufacture a wide range of mechanical, electro-mechanical, and light electronic products at our Hanover, PA contract manufacturing facility. Our Pennsylvania contract assembly team specializes in precision component assembly services requiring careful handling and quality control. We work with metals, plastics, composites, and mixed materials, creating anything from simple assemblies to complex finished products through our value-added manufacturing assembly solutions.
We implement strict confidentiality protocols for all contract manufacturing projects. This includes signed non-disclosure agreements, limited access to project documentation, segregated production areas when needed, and secure storage of all design files and manufacturing specifications. Your intellectual property remains protected throughout our relationship, and we can establish additional security measures for highly sensitive products.
We accommodate various production volumes without strict minimum order requirements. Our small volume contract manufacturing services range from prototype batches of 10–50 units, while our medium volume contract manufacturing handles ongoing production runs of thousands of units. We pride ourselves on volume flexibility — a key differentiator among contract manufacturers in Pennsylvania.
We offer both options. Many clients leverage our contract manufacturing services procurement capabilities — our established supplier relationships and buying volume benefit your project. Our team can source all required components, manage inventory, and handle quality inspection of incoming materials for your Pennsylvania contract assembly program. Alternatively, you can provide some or all components for us to use in assembly.
Our quality control process includes incoming material inspection, first article verification, in-process checkpoints, and final product testing. As an ISO 9001:2015 certified contract manufacturer in Pennsylvania, we document critical dimensions and functional characteristics according to your specifications. Our Hanover, PA facility maintains full traceability from raw material to finished product — meeting the documentation requirements of automotive, aerospace, and medical device OEMs.