C4 Sourcing helps US brands nationwide find reliable factories, develop products, control quality, and ship goods efficiently with a U.S.-based team and on-the-ground support in Asia.
We are a US Based Product Sourcing Company for Product Development, Manufacturing, Quality Control, and Logistics
Design to Delivery
Source Overeseas Without the Overwhelm
C4 Sourcing provides complete product sourcing solutions for brands looking to manufacture overseas. As a trusted product sourcing company, we help you find the right factory, develop your product, and manage production from start to finish.
We specialize in China sourcing solutions and global manufacturing partnerships.
With teams on the ground in China and Vietnam, we oversee factory sourcing, product development, quality control, and logistics—ensuring your products are produced correctly, on time, and at the right cost.
No guessing. No supplier roulette. Just reliable manufacturing partners.
WHO WE CAN HELP?
Established Businesses
Businesses Ready to
Take the Leap
Entrepreneurs Turning
Ideas Into Products
Large-Scale Retailers &
Product Lines
Product Sourcing
We are a product sourcing company that specializes in identifying and vetting qualified manufacturers, run structured RFQs, and match your product with the right factory for overseas manufacturing.
Product Development
Turn ideas into production-ready products through sampling, specification development, and prototype refinement.
Quality Assurance
Our inspectors verify materials, workmanship, and packaging during production and conduct pre-shipment inspections using AQL sampling.
Logistics Support
We coordinate shipping documentation, Incoterms, and freight logistics to ensure products move smoothly from factory to destination.
Founded in 2015 by Keith Henderson, C4 Sourcing is a U.S.-based product sourcing company and overseas manufacturing partner helping US brands nationwide bring products to market through trusted factories in China, Vietnam, and other global manufacturing hubs.
With on-the-ground teams in Asia, we manage the full manufacturing process — from product design and prototyping to supplier sourcing, helping you find the right manufacturer, production, quality assurance, and logistics coordination.
We match each product with the right manufacturer based on materials, production capabilities, certifications, and cost targets. By managing supplier vetting, RFQs, sampling, and factory communication, we help companies reduce risk, improve pricing, and maintain consistent product quality.
The result is a transparent sourcing process that strengthens supply chains and helps brands launch high-quality products with confidence.
ABOUT
BUILT ON QUALITY, DELIVERY, AND PRICE.
We treat your product as an extension of your brand — quality isn’t optional, it’s our standard.
Deadlines drive business. With our on-the- ground teams and proactive communication, your products ship on schedule — every time.
We leverage trusted factory relationships and years of sourcing experience to lower your costs without compromising quality, ultimately improving your bottom line.
The C4 Process
Here’s a look how we work with our clients
What our clients say
C4 was an integral partner in
developing multiple new product
lines from the ground up. Having
someone like Keith, who has
experience being on the ground
inside these factories and
communicates effectively, was
critical in avoiding the many
errors that can arise without
proper guidance and expertise.
Sean H.
I have used C4 for over eight
years. Keith and his crew are
very timely in sourcing solving
and keeping our business
flowing in a timely manner.
Every project that I work on
Involves C4. From simple to
complex, C4 is my team!
De J.
I've been working with keith for
sourcing over 7 years. Keith
always responds timely manner.
He has some much knowledge
of sourcing and make sure
products high quality. He should
be on your top list when thinking
about sourcing products
overseas.
Amanda Z.
Get a free quote or tell us about your company or product ideas—we’d love to help.
