DemandStar(formerly Onvia) is a bid-distribution network. Rather than being any one agency’s portal, it aggregates solicitations from thousands of local governments — cities, counties, school districts, and special districts — and pushes matching notifications out to registered vendors. Its pitch is convenience: one account that surfaces bids from many agencies at once, instead of you checking each agency’s website by hand.
The important nuance to understand before you rely on it is the pricing. DemandStar runs a freemium model, so what you get for free versus what requires a paid subscription is the thing to get straight up front — and it is the main thing this guide clears up.
What DemandStar is (and who uses it)
DemandStar is a middleman that redistributes public bids. Agencies publish their solicitations into the network, and vendors who have registered and set their categories receive alerts when something matches. For buyers, it widens the pool of vendors who see a bid; for vendors, it consolidates opportunities from many small agencies into one feed.
A crucial reality: DemandStar is rarely the onlyplace a bid appears. Most agencies also post the same solicitation on their own website, and often on a state or regional portal too. That matters because it means you can frequently find and download the same documents elsewhere for free — a point worth remembering when you weigh a subscription. Treat DemandStar as one channel in a broader habit of finding local government contracts, and use our bids directory to catch the same opportunities across sources.
Free versus paid: what a subscription actually gets you
Registration is free, and a free account has historically let you follow a limited set of agencies — enough to receive notifications and access bids from those agencies. Broader coverage — notifications and document downloads across many more agencies or regions — has historically required a paid subscription.
There is one more wrinkle that works in your favor: some agencies pay DemandStar themselves so that their vendors get access at no charge. In practice that means you can often follow and bid with a specific agency for free even without a paid plan — it depends on how that agency has set things up. Because these arrangements and price tiers change over time, verify the current terms on DemandStar directly before you pay, and check whether the agency you care about is one that covers vendor access.
Step 1 — Register as a vendor
Create a free account with your business email, confirm it, and set a password. Then enter your company details and choose the commodity codes or categories that describe what you sell — these drive which bids you are notified about, so choose them with care. If you are unsure how to classify your offerings, our guide to NAICS codes explains the classification schemes governments use.
Registering on DemandStar is not the same as being a registered vendor with the agency itself. Many governments still require you to be in their own vendor or financial system — for a W-9, payment setup, and sometimes a local business license — before award. Read each solicitation to see what separate registration it requires, and handle it early.
Step 2 — Find the solicitation and download documents
From your account, browse or search open bids and open the one you want. Read the summary for the closing date and time (note the time zone) and the scope, then download the full document set: specifications, drawings, pricing forms, and required certifications. If a download is gated behind a subscription and you would rather not pay, remember that the same documents are usually available free on the agency’s own site — go there and pull them directly.
Before you invest in a response, size up the requirements and how offers will be scored. Our guide on how to read an RFP shows how to find the evaluation criteria quickly and decide whether the work is worth pursuing.
Step 3 — Prepare and submit your response
Here is the other thing that distinguishes DemandStar from an all-in-one bidding engine: it is primarily a distribution and download service, and the way you submit is set by the agency, not a single fixed workflow. Some agencies accept an electronic response; many direct you to submit by email or to deliver a sealed paper bid to a physical address by the deadline. The solicitation is the authority — follow its submission instructions exactly.
Whatever the method, prepare a complete package: the pricing sheet or bid form, signed acknowledgement of any addenda, references, and proof of insurance or bonding where required. If you hold a small-business or disadvantaged-business certification, have the paperwork ready — see set-asides and certifications. Then submit early: leave hours of buffer, confirm the method and address in writing, and keep proof of your submission. Public buyers rarely accept anything after the posted deadline.
Tips and common mistakes
The biggest mistake is paying for coverage you do not need. Before subscribing, check whether your target agencies post the same bids for free on their own sites or on a state portal, and whether any of them cover vendor access on DemandStar. If DemandStar genuinely saves you time across many agencies, a subscription can pay for itself — but decide that deliberately, not by default. Either way, the winning habits are the same on every platform: register early, read the whole solicitation, answer every requirement, and submit ahead of the clock. Learn the universal government-portal playbook once and it carries over everywhere.
The bottom line
DemandStar can be a convenient way to see local bids from many agencies in one place, but it is a distribution network with a freemium model — not the only route to any given contract. Register free, set accurate categories, and be clear-eyed about what a paid plan adds before you buy, since the same documents are often free at the source. Then submit the way each solicitation instructs. To keep your options open, browse open bids near you and follow each listing back to its origin.