After sourcing the optimal component mix for your product, we create pre-production samples (PPS) to validate fit, function, and finish – ensuring everything works flawlessly before full-scale production. Minimize risks, identify potential issues early, and move forward with confidence.






Our experts guide you through EVT, DVT, and PVT with ease
We collaborate with you and our trusted partners to validate your product for both manufacturability and customer expectations, ensuring a seamless transition from prototype to full-scale production.
EVT (Engineering Validation Test)
In this phase, we validate the technical feasibility of your design by testing prototypes built with near-final components. Our focus is on ensuring functionality, identifying engineering challenges, and resolving issues before scaling further. If any problems arise, we provide expert guidance on the best way forward.
DVT (Design Validation Test)
DVT ensures your product meets its design intent and user requirements. We advise on form, fit, and function, while also verifying compliance with durability and regulatory standards specific to your target market.
PVT (Production Validation Test)
PVT verifies that your product can be manufactured at scale. We produce a small batch under final production conditions at our selected factories to ensure quality, consistency, and readiness for full-scale production.
Engineering review: We work with our engineering partners to analyze your design files, ensuring all specifications are ready for manufacturing.
Supplier matching: We identify and source the ideal supplier for your product, whether it’s small-scale metal fabrication or plastic manufacturing.
Tooling and sampling: Custom molds, fixtures, and tools are prepared to produce accurate samples that meet your specifications.
Quality control: We inspect all components and parts for quality, functionality, and performance.
Validation & assembly: We assemble all components and test samples to ensure quality, functionality, and adherence to your design.
Full-scale manufacturing: Once the product’s functionality, finish, price, and quality meet your requirements, we move to full-scale production and assembly.
Whether you have a full set of CAD drawings or are already in production, we can help.

Customer case


The challenge
A consumer product company needed to move from concept to large-scale production — building a complete manufacturing assembly line in Asia from scratch, across a highly complex, multi-component product, while meeting tight deadlines.
Our approach
We sourced and coordinated suppliers across six countries, managing tooling, component production, assembly, and logistics end to end. Every supplier was selected, vetted, and managed by our team — the client had one point of contact throughout.
The results
A robust, scalable supply chain integrated across multiple manufacturing regions, delivered on time and ready to meet growing demand.
At a glance:
You have the product, the demand, and the deadline. We build the entire manufacturing operation — from prototype review through to delivery. No prior Asia experience needed.
See how it worksWhether you're moving production, scaling volume, or dealing with quality problems at your current supplier — we take over the relationship and the responsibility.
We understand that manufacturing can be overwhelming, especially when working with tight deadlines and multiple suppliers across the globe. That’s why we take full responsibility for making the process smooth, transparent, and reliable.
Expert guidance – The best materials, finishes, and production methods for your product.
Trusted suppliers – A vetted network ensuring quality, reliability, and the best price.
No surprises – Clear costs, lead times, and full transparency.
Strict quality control – Every part is tested, inspected, and approved.
Your deadlines matter – A fast-track process that ensures on-time delivery.
Sourcing Allies specializes in sourcing and manufacturing, offering a seamless solution from supplier selection to final assembly. Whether it’s plastics, metals, electronics, or custom components, we ensure high-quality production and reliable delivery – so you get the right product, at the right price, on time.
Component production and production setup
From custom parts to sourcing and assembly line setup, we ensure every detail supports your product’s success.
Make product samples
Create samples that showcase exceptional quality and set the right expectations for your customers.
First production batch
Transform ideas into reality with a first batch that meets your quality and timeline goals.
Full production
Build Inventory: Scale production confidently with inventory ready to meet demand.
Manage Shipping: Deliver seamlessly, from the factory floor to your customers’ hands.
Continuous improvements
Enhance your production processes to keep your products competitive and your customers happy.
With a vetted network of manufacturers and suppliers across China, Vietnam, and India, we provide contract manufacturing, turnkey manufacturing, and contract assembly solutions tailored to your needs. As a trusted sourcing agent, our local teams in China, Vietnam, Europe, and the US ensure seamless coordination, quality control, and on-time delivery – wherever you do business.

Turnkey assembly & manufacturing
End-to-end production – from sourcing to final assembly.
Contract manufacturing & assembly
Scalable solutions with reliable, high-quality output.
Expert sourcing agents
Connecting you with the best factories for your product.
Pre-production samples or PPS allow you to test and refine your design before committing to full-scale production. They help validate functionality, quality, and manufacturability, ensuring your product meets expectations while minimizing costly risks.
Each validation phase ensures your product is production-ready:
✅ EVT (Engineering Validation Testing): Tests early prototypes for technical feasibility and identifies potential design flaws.
✅ DVT (Design Validation Testing): Ensures form, fit, and function while verifying compliance with market regulations.
✅ PVT (Production Validation Testing): Produces a small batch under full production conditions to confirm quality and scalability.
Pre-production samples or PPS help identify potential issues early, allowing us to refine the design, adjust materials, and optimize manufacturing methods. This ensures your product aligns with its intended functionality, price, and quality standards before scaling production.
We match your product with trusted suppliers specializing in small-scale metal fabrication, small-scale plastic manufacturing, and custom component production. We thoroughly vet factories based on their capabilities, reliability, and compliance with standards.
We tailor the validation process to fit your timeline. If needed, we streamline sampling and testing to fast-track make-to-market production, ensuring your product is manufactured and delivered as quickly as possible. Learn more about our fast-track program here.
Once your PPS meets design, quality, and pricing expectations, we move into full-scale production and assembly, ensuring a seamless transition with strict quality control at every stage.
We sometimes share case studies, learnings and webinars of our experiences when sourcing and manufacturing in China and Asia.