Contract Manufacturing


Guy and O’Neill offers full-service toll and turnkey contract manufacturing, partnering with national and global companies from initial concept to product finalization and delivery. We manufacture to your unique requirements and quality expectations, and deliver on-time in-full, with manufacturing and supply chain experts dedicated to your success.

Proven Partners | Quality Assurance | G&O Labs | Services


Proven Partners

Guy & O’Neill has enjoyed a long and successful history of working with Fortune 500 companies, serving as an extension of their production perfecting a fast, efficient way to bring products to market with quality, formulation, and supply chain in mind.

We do everything we can to make it simple for you to do business with G&O. Our contract manufacturing customers are provided a dedicated project manager for a single point of contact for product specification transfer, trial planning, project timelines and initial production.

Our project managers understand the wet wipes and liquid fill markets and the technology behind your products. Consistent quality assurance, combined with exceptional customer service, make us the perfect partner for contract manufacturing.

We boast highly efficient, low-waste manufacturing processes, and our highly predictable performance promotes order and fulfilment reliability creates a mutually successful results for our customers and G&O.

In short, we make contract manufacturing seem easy.



Quality Assurance

You will reap the benefits of G&O’s strong and independent quality management team, well planned quality management programs and effective implementation, all made in world-class manufacturing facilities continually improved and expanded to meet and exceed customer demand.



G&O Labs

Guy & O’Neill’s in-house, fully equipped microbiological lab works in tandem with our analytical lab for quality assurance. Our labs are staffed with degree-holding professionals with many combined years of experience in the industry. Our rapid-detection equipment produces data within 48 hours.


Our customers have access to comprehensive quality services:

  • Micro and analytical testing
  • Validation
  • Package testing
  • Accelerated and real-time stability testing
  • Preservative testing
  • Clinical / safety testing via a network of partner labs
  • Test-method transfer and development
  • Regulatory testing support

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