Online Reagents

About us

Online Reagents is a UK chemical manufacturer specialising in bespoke reagent production, chemical blending, white labelling and contract manufacturing for industry, laboratories and process applications. Backed by over 50 years of analytical and instrumentation experience through PMA Ltd, we support customers with reliable chemical solutions designed around real-world applications.

Our capabilities range from small development batches through to industrial production volumes of up to 30,000 litres, including bespoke formulations, toll blending, packaging and private label manufacture. We work with water utilities, laboratories, industrial process operators, OEMs and distributors requiring quality, consistency and technical support.

Products and services include:

• Bespoke chemical manufacturing
• Reagents for analytical instrumentation and process monitoring
• White label chemical production
• Toll blending and contract packing
• Verification standards and consumables
• Custom formulations for industrial applications
• Small batch and large-scale production
• Technical support from experienced chemistry and instrumentation specialists

Visit us at CHEMUK 2026 to discuss chemical manufacturing, custom formulations and how we can support your products, processes or brand.