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Customer insight-driven Solutions for your brand

Creating a superior product starts with knowing your customers.

Guy & O'Neill is the authority on private label and contract manufacturing

(Stay tuned...our brand new website is in the works!)

Who We Are

For more than 30 years, Guy & O'Neill has manufactured a legacy of success by putting people first.

What started as an over-the-counter pharmaceutical development and manufacturing company in 1975 has since expanded its focus to meet more consumer needs. Working hand in hand with Fortune 500 consumer product companies, G&O has become the premier choice for private label and contract manufacturing.

We offer a wide range of capabilities and state-of-the-art equipment that is all in-house, and we boast a short time to market. Our passion pushes us to create superior products. Not only is our track record with our partners unparalleled, but we’ve raised the bar with our strong business ethics, continuous improvement of product and process, and customer satisfaction.

When your customers demand the best, look to G&O.

2016 Top Work Places - Milwaukee Journal Sentinel

Thank you to all of our employees for making G&O a top workplace. We couldn't be prouder!

Private Label

Put our expertise and reputation to work for you. We develop products that are equal to – or better than – the national brand.

Household Disinfectants

Household Disinfectants

Facial Wipes

Facial Wipes

Personal Lubricant

Personal Lubricant

Automotive Wipes, Detailers and Cleaners

Automotive Wipes, Detailers and Cleaners

Feminine Wipes

Feminine Wipes

Green Cleaners

Green Cleaners

Adult Care Wipes

Adult Care Wipes

Much More

Much More

Contract Manufacturing

Technician at work

Our job is to make you look good. We do this by reducing your costs, producing existing products more efficiently and challenging ourselves to create the highest quality products.

With our FDA- and EPA-registered facilities and high-speed custom equipment, G&O’s production team can produce a variety of package styles and sizes of resealable soft-packs, canisters, tubs and multi-sized bottles.

As specialists in product formulation, liquid filling, non-woven converting and packaging alternatives, we can steer the success of your cosmetic and personal care products, pharmaceuticals, cleaners and polishes. We are the experts when it comes to wet wipes, disinfecting wipes and household care.