Business Name: Business Address (No P.O. Box): Business Phone Number: (. The standard purchasing process for Allegheny County involves: requisitioning; public solicitation; bid and proposal receipt; evaluation and contract award.Learn about forming and registering your business online, and how to complete other types of business filings. Register your business (opens in a new tab). The PA Business One-Stop Shop Help Center was created to assist businesses and entrepreneurs to start, operate, and grow a business in Pennsylvania. Whether you're looking to grow your business, relocate, or start a new business, Allegany County offers the resources and services to help you at every step. Please complete the front side of this form and provide it to JTS. You may contact JTS at (412) 835-5243. An Allegheny Health Network purchase order number must appear on all invoices. Any invoice received without a purchase order number may be returned.