B2B cold calling is legal in the US. The do-not-call request is the part to check
Dylan Breheny · Published November 9, 2026 · 5 minute read
For: owners and sales leads at industrial manufacturers who plan to hire a calling vendor or run cold outbound themselves.
Yes, you can cold call another business in the US. The FTC's Telemarketing Sales Rule exempts most business-to-business sales calls, and its Do Not Call Registry ban doesn't reach them. You and your vendor handle the rest: the buyer who asks you to stop, and the customers you never want called by mistake. This note covers the federal rule, how our salespeople handle a do-not-call request, and four questions for any vendor who dials under your name.
Is it legal to cold call another business in the US?
Cold calling another business is legal in the US, and the FTC's Telemarketing Sales Rule exempts most calls a seller makes to a business to sell that business something. The FTC's guide, Complying with the Telemarketing Sales Rule (opens in a new tab), lists two kinds of business call that stay under the rule. One sells nondurable office or cleaning supplies, such as paper, toner or solvents. The other reaches a business line but pitches an employee something for personal use.
A manufacturer selling machined parts, sensors or fabrication work to a plant makes the ordinary kind of business call. The buyer on the line purchases for the company, and your salesperson asks the company to buy. This note describes how we run calls for manufacturers. It isn't legal advice, and your counsel has the last word on your program.
Does the Do Not Call Registry apply to calls to a manufacturer?
The National Do Not Call Registry ban doesn't apply to business-to-business calls, according to the same FTC guide. You'll hear buyers ask to be left alone, and you should treat each request as binding on your team. A plant manager who asks twice and receives a third call will remember your company name for the wrong reason.
The FTC guide adds that the FCC regulates telemarketing calls. Buyers give out mobile numbers, and data providers list them, so a calling vendor should be able to tell you which FCC rules it follows when it dials a cell phone.
What should a salesperson say when a buyer says "don't call me again"?
A salesperson should agree on the spot, ask once whether email or LinkedIn suits the buyer better, and stop calling if the answer is no. Our team drilled that rule in an October training on call dispositions. The instruction covered two lines buyers use: "is this a cold call?" and "I don't take calls on my mobile." The salesperson acknowledges it, makes the one offer, and moves to the next dial without arguing.
Our two-rebuttal ceiling doesn't apply here. A salesperson offers no rebuttal to a do-not-call request.
After the call, the salesperson flags the number as do-not-call in the dialer. In our setup that flag is shared across the account, so the number drops out of every salesperson's list. A teammate working the same data next week can't dial it by mistake. If your vendor keeps the flag on one caller's sheet, the buyer will hear from the second caller you add.
Whose do-not-contact list should a calling vendor load before the first dial?
A calling vendor should load the manufacturer's own do-not-contact list, built from current customers and recent accounts, before the first dial. No federal list covers your customers. A cold pitch to your largest account, made under your company name, tells that buyer your sales team doesn't know who they are.
Owners raise this before we do. In a scoping call last week, an industrial machinery seller offered to hand over the list of companies the firm had transacted with, so our salespeople would skip every account that already knows the firm. Our note on outbound lead generation for a contract manufacturer covers the one exception we've used: a customer with no business in three years or more can go back on the call list as a new account.
What should a manufacturer ask a calling vendor about compliance before signing?
A manufacturer should ask a calling vendor four questions before signing: whose name the salesperson uses, whose do-not-contact list loads first, where a do-not-call request goes, and how the vendor dials mobile numbers.
- The name on the call. Our salespeople call under your brand, with the script drafted with your team in the first two days. You put your reputation on every call, so read the opener before the first dial.
- The list that loads first. Your customers and recent accounts, before day one.
- The route for a do-not-call request. Onto the number for every caller on your account, the same day.
- Mobile numbers. Ask which FCC rules the vendor follows, and ask your counsel to check the answer.
A vendor with a one-sentence answer to each has run the process before. A vendor who needs to check will learn it on your accounts.
Which three questions should you take to your own call data?
- Does your calling team have a written answer for a buyer who asks not to be called again, and does that answer stop at one offer of email or LinkedIn?
- If one salesperson flags a number as do-not-call today, can any other caller on your account dial it tomorrow?
- Did your current customers, and the accounts you sold to in the last three years, reach the caller as a do-not-contact list before the first dial?
Ask us the four questions before you sign. We'll answer each one on the call.
Tell us what you sell and who buys it. If cold calling fits your market, our salespeople are dialing under your brand inside 10 days. If it doesn't, we'll tell you that on the call.
No pitch deck. No pressure. A 30-minute conversation with Grant, our director, about whether cold calling for manufacturers makes sense for your business.