ESP Spares is a Texas-based precision manufacturing and engineering company specializing in precision CNC machining, semiconductor spare parts, fabricated components, mechanical assemblies, repair and refurbishment, reverse engineering, custom engineering solutions, and contract manufacturing. Located in Georgetown, Texas, ESP supports demanding high-technology industries including semiconductor manufacturing, aerospace and defense, energy and oil & gas, and contract manufacturing. The company combines advanced manufacturing capabilities, engineering expertise, quality control, and specialized semiconductor knowledge to produce precision components and assemblies for applications where accuracy, repeatability, reliability, and performance are critical.
Founded in 1999 as Engineered Semiconductor Products, ESP initially focused on supplying precision-machined components to semiconductor manufacturers in Central Texas. Over the years, the company expanded its capabilities into specialized materials, advanced coatings, complex fabrication, engineering services, and refurbishment. In 2020, ESP welcomed SPM Technology (Sather’s Precision Machining), founded in 1976, into its organization, strengthening its close-tolerance machining capabilities and technical expertise. ESP has subsequently invested in new equipment, a dedicated plastics-only machining environment, and advanced inspection capabilities.
Comprehensive Precision Manufacturing & Engineering Services
ESP Spares provides an integrated range of manufacturing and technical services for customers requiring highly precise components and specialized industrial solutions.
Core Services Include:
- Precision CNC machining
- CNC milling
- CNC turning
- Plastic-only machining
- Semiconductor spare parts
- Mechanical assemblies
- Repair and refurbishment
- Reverse engineering
- Custom engineering
- Design for manufacturability
- Prototyping
- Functional testing
- Calibration
- Dimensional analysis
- Vendor Managed Inventory (VMI)
- Consignment inventory
- Custom fabrication
This combination allows ESP to support customers from initial engineering concepts and prototypes through production, refurbishment, testing, and ongoing spare-parts supply.
Precision CNC Machining
Precision CNC machining is a core capability of ESP Spares. The company operates multiple CNC milling and turning machines capable of producing complex, close-tolerance components from metals and engineered plastics.
CNC Manufacturing Capabilities Include:
- CNC milling
- CNC turning
- Multi-axis machining
- High-speed machining
- Live-tool turning
- Sub-spindle part transfers
- Precision component manufacturing
- Complex geometry machining
- Tight-tolerance production
- Prototype and production machining
ESP’s milling capabilities include machines supporting up to five-axis machining, while its turning equipment handles demanding component geometries and material requirements.
Dedicated Plastics-Only Machining
ESP maintains an isolated machining area dedicated exclusively to engineering plastics. This specialized environment helps reduce the risk of metal contamination for customers operating in cleanroom and semiconductor manufacturing environments.
Engineered Plastics Include:
- Vespel
- Torlon
- PEEK
- PTFE
- PBI
- Acetal
- Nylon
- PVDF
- PPS
- PET
The company also works with metals including aluminum, stainless steel, Inconel, Hastelloy, and titanium, providing customers with broad material-processing capabilities.
Semiconductor Spare Parts & Manufacturing Support
ESP Spares has deep experience supporting semiconductor manufacturing equipment and wafer fabrication processes. The company provides tested and qualified spare parts and consumables designed to meet demanding OEM specifications while providing a potentially more cost-effective alternative.
Semiconductor Support Includes:
- Precision spare parts
- Consumables
- Replacement components
- Mechanical assemblies
- CMP retaining rings
- Refurbished components
- Tool-ready assemblies
- Clean and bagged parts
- Reverse-engineered components
- Custom semiconductor solutions
ESP supports areas of wafer fabrication including Etch, CVD, Implant, Metals, Diffusion, CMP, and Photo. Its expertise includes manufacturing new and refurbished retaining rings for CMP processes. Finished parts and assemblies intended for semiconductor manufacturing can be cleaned and bagged in a controlled clean area.
Repair & Refurbishment Services
ESP provides repair and refurbishment services designed to extend the useful life of customer-owned components and assemblies.
Refurbishment Services Include:
- Component teardown
- Inspection
- Repair
- Rebuilding
- Restoration
- Functional testing
- Calibration
- Assembly refurbishment
- Component life extension
- Tool-ready preparation
The company works to understand the customer’s original component requirements and restore products to a functional condition, helping reduce replacement costs and equipment downtime.
Engineering & Reverse Engineering
ESP’s engineering team collaborates directly with customers to develop custom-designed solutions, design improvements, reverse-engineered components, and manufacturing-ready products.
Engineering Services Include:
- Reverse engineering
- Design for manufacturability
- Custom product design
- Design improvements
- Dimensional analysis
- Material analysis
- 3D printing and prototyping
- Functional testing
- Calibration
- Custom fixtures
- Specialty assemblies
ESP’s reverse-engineering process can include measuring samples, understanding fit and function, analyzing materials, and manufacturing replacement parts. Engineers can also identify opportunities to improve product life, manufacturability, reliability, and cost.
Quality Inspection & Certification
Quality is an important part of ESP’s manufacturing operations. The company uses advanced inspection equipment, including two automated Coordinate Measuring Machines (CMMs) capable of complex GD&T verification with accuracy reported up to 0.0002 inches.
ESP maintains AS9100D and ISO 9001:2015 certification, supporting its work in demanding semiconductor, aerospace, energy, and other high-technology industries.
Quality Capabilities Include:
- CMM inspection
- GD&T verification
- Dimensional inspection
- Material traceability
- Functional testing
- Calibration
- Quality assurance
- Process control
- AS9100D compliance
- ISO 9001:2015 quality management
Vendor Managed Inventory & Consignment
ESP also provides Vendor Managed Inventory (VMI) and consignment management services. These programs allow customers to maintain appropriate spare-parts inventory while ESP helps manage stock levels according to usage requirements.
Inventory Services Include:
- Vendor Managed Inventory
- Consignment inventory
- Inventory planning
- Stock monitoring
- Scheduled replenishment
- In-house inventory
- Customer-site inventory
- Supply continuity
These services can help customers reduce stockouts, simplify purchasing, and maintain critical spare parts for production equipment.
Industries Served
ESP Spares supports several high-technology and precision-focused industries.
Key Industries Include:
- Semiconductor manufacturing
- Aerospace and defense
- Energy
- Oil and gas
- Contract manufacturing
- High-tech manufacturing
- Industrial equipment
- Precision engineering
The company’s capabilities in machining, engineering plastics, specialized materials, refurbishment, inspection, and custom design allow it to support applications with demanding technical and quality requirements.
Why Choose ESP Spares
Customers choose ESP Spares for:
- More than two decades of ESP experience
- Deep semiconductor manufacturing expertise
- Precision CNC machining
- Five-axis milling capabilities
- Precision CNC turning
- Dedicated plastics-only machining
- Advanced CMM inspection
- AS9100D and ISO 9001:2015 certification
- Repair and refurbishment expertise
- Reverse engineering
- Custom engineering solutions
- VMI and consignment programs
- Domestic manufacturing and supply-chain support
ESP combines precision manufacturing, engineering, quality assurance, semiconductor expertise, refurbishment, and inventory management to provide customers with a comprehensive technical manufacturing partner.
Supporting High-Tech Manufacturing with Precision
ESP Spares supports the semiconductor, aerospace, energy, oil and gas, and other high-technology industries with precision components and engineering solutions where quality and repeatability are essential. Its capabilities extend from CNC machining and semiconductor spare parts to refurbishment, reverse engineering, prototyping, testing, calibration, and inventory management.
Based in Georgetown, Texas, ESP combines advanced equipment, specialized materials expertise, dedicated plastics machining, experienced engineers, rigorous quality systems, and customer-focused service. Its ability to manufacture new components, refurbish existing assemblies, improve designs, and manage critical spare-parts inventory makes ESP Spares a comprehensive partner for demanding precision manufacturing applications.
With its focus on precision, performance, reliability, quality, and technical collaboration, ESP Spares provides customized manufacturing and engineering solutions designed to help customers improve equipment performance, reduce costs, extend component life, and minimize production downtime.
