Ordering information & customer communication

Legal entity for ordering

Please read this important message regarding use of the correct legal entity. To ensure efficient processing of orders for catalog items, please use the correct legal entity for your country when submitting your purchase order (P.O).

Credit application

New customers please complete a Credit Application Form

W-9 form

Please ensure that we are set up as a vendor at your institution

Shipping and handling

Here is a complete guide to our shipping fees.

Invoice request

Need a copy of an invoice? You can request a copy of an invoice by completing our online Request for Invoice form. Please note, you will need to provide the email address, sales order number, amount and the bill to customer name when requesting a copy of an invoice. Questions? Please contact Accounts Receivable at ar.dharmacon@horizondiscovery.com.

COVID-19 research support

The COVID-19 pandemic requires a global response, and Horizon is committed to supporting the fight against the novel coronavirus in any way possible. We currently have the capacity to meet and deliver order needs without delay. If your lab is in need of RNA reagents, please contact us immediately. See how COVID-19 is affecting Horizon's business operations here.

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Horizon and Envigo complete transaction

On November 8, 2019, Envigo announced an agreement to acquire the research models business unit of Horizon Discovery Group (also called Horizon In Vivo). This Horizon business unit is one of the global leaders in the creation and supply of genetically modified research models.

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Interested in eProcurement?

General information about eProcurement is available on our eProcurement Solutions page. To get started with a solution or if you have questions please reach out to our eProcurement team.