In today’s increasingly competitive precision manufacturing landscape, CNC machining has become the core process for producing high-precision components across industries. As a global leader in manufacturing technology, the United States is home to numerous outstanding CNC machining companies. This article provides a detailed overview of the top 5 CNC machining manufacturer in the US, comparing their strengths and weaknesses, machining capabilities, and pricing structures. We hope this information will assist your business in selecting the most suitable partner.
Protolabs — Rapid Delivery CNC Machining Experts

Protolabs is a renowned rapid manufacturing service provider in the United States, specializing in small-batch customization and rapid prototyping.
Main Services:
CNC Milling & Turning
5-Axis Machining
Plastic & Metal Part Prototyping
Price Range:
Small parts starting at approximately $60–$100
Complex metal parts around $300–$800
Advantages:
Ultra-fast turnaround (1–3 days)
Efficient and convenient online automated quoting system
Ideal for prototyping and small-batch production
Disadvantages:
Higher costs
Not suitable for large-volume orders
Weldo Machining—A Rising CNC Machining Service Center

Weldo Machining is a CNC machining service provider with 20 years of experience, connecting hundreds of carefully vetted CNC machining material suppliers. Our team boasts employees with up to 15 years of tenure and extensive precision machining expertise, delivering flexible material processing solutions.
Core Services:
CNC Milling (3/4/5-axis) & Turning
Custom Metal Parts Production
Surface Finishing & Other Mold Machining Services
Fastest turnaround: 1 day for machining and shipping
Price Range:
Standard aluminum parts: approx. $50–$200
Precision parts: approx. $150–$1,000
Advantages:
Extensive material supply chain resources to handle diverse machining demands
20 years of CNC machining expertise & experience processing over 100 materials
Ideal for SMEs and rapid customization projects
Fictiv — High-Precision CNC Machining Service Provider

Fictiv specializes in high-precision and high-standard manufacturing, excelling in the aerospace and medical device industries.
Main Services:
Five-axis CNC machining
Micro and complex part machining
Aerospace and medical-grade part manufacturing
Price Range:
Prototypes: approximately $100–$300
Aerospace-grade parts: up to $1,000+
Advantages:
Exceptional precision (±0.001 inch)
Stringent quality control
Provides DFM (Design for Manufacturing) services
Disadvantages:
Higher costs
Slightly longer lead times compared to Protolabs
3ERP — Global CNC Machining and Rapid Prototyping Experts

3ERP is an international manufacturing enterprise headquartered in China with a dedicated customer service team in the United States. We have earned global recognition in CNC machining for our cost-effective solutions and rapid response times.
Core Services:
CNC Milling & Turning
5-Axis CNC Machining
Rapid Prototyping & Low-Volume Production
Tooling & Post-Processing Services
Price Range:
Aluminum parts: approx. $100–$500
Precision components: approx. $100–$2000
Advantages:
Moderate costs, short lead times
Supports diverse materials (aluminum, stainless steel, titanium alloys, POM, etc.)
Meets European/American quality standards with international certifications
Disadvantages:
Slightly longer international shipping cycles
Time zone coordination required for communication
Owens Industries — Aerospace-Grade Precision CNC Machining Experts

Owens Industries is a leading provider of high-end precision manufacturing, specializing in aerospace, medical, and defense industries.
Core Services:
5-axis high-precision CNC machining
Aerospace components and medical implants
Micro-hole and complex geometry machining
Price Range:
Medical-grade components: approx. $500–$2,000+
Highly complex aerospace parts: up to $5,000
Advantages:
World-class precision and reliability
Suitable for high-end applications
Strict adherence to AS9100 and ISO 9001:2015 standards
Disadvantages:
Extremely high costs
Not suitable for small to medium-sized orders
Summary: How to Choose the Right CNC Machining Manufacturer?
If speed and flexibility are your priorities, choose Protolabs;
If you aim to reduce costs while maintaining a flexible supply chain, consider Weldo Machining;
For projects demanding extreme precision and quality, we recommend Fictiv or Owens Industries;
If automated production and mid-volume machining are your goals, Plethora is the ideal choice.
The U.S. CNC machining industry boasts mature technology and stringent standards, delivering high-quality solutions to global clients—whether for prototype development or high-end component manufacturing.