Periscope S2G Vendor Registration Guide
Periscope S2G (Source to Get) is a state and local procurement aggregator and platform. Periscope owns BidSync (a long-running aggregator) plus state procurement systems including Illinois BidBuy.
Portal URL: https://www.periscopeholdings.com/s2g
Who uses Periscope S2G?
Illinois state agencies, Pennsylvania state agencies, Indiana, and many other state and local entities. Periscope also operates a vendor opportunity matching service.
State of Illinois (BidBuy), Commonwealth of Pennsylvania, State of Indiana (IDOA), and many other state and local agencies. Sometimes still branded as "BidSync" in older marketing.
Registration steps
- Visit the specific portal for the state or agency (e.g., bidbuy.illinois.gov for Illinois).
- Create a free vendor account through the portal's registration page.
- Enter business information, NAICS, and commodity codes specific to the state.
- Configure email notifications for your categories.
- Submit responses through the portal when opportunities are posted.
Cost
Free for vendors. Some state portals (Illinois) also offer a paid premium tier for additional features.
What to expect
Periscope state portals are functional and widely used — Illinois BidBuy is one of the most-active state procurement systems in the country. Bid submission and document downloads work well.
Tips
- Each Periscope state implementation has its own commodity code structure — register accurately to get useful notifications.
- Some Periscope-based portals also accept submissions via paper or fax — confirm submission method.
- Periscope's BidSync aggregator covers state and local bids but is often less comprehensive than ProcureTap.