B2B buying signals: definition and 20 examples of who to contact

What is a B2B buying signal?

A B2B buying signal is a public, dated event showing that a company, or a specific person in it, probably needs what you sell in the coming weeks. It answers 2 questions: why them, and why now.

A target list tells you who might buy one day. A signal gives you a reason to write this week, to a named person, about something concrete. That is what separates a message that gets deleted from one that gets a reply.

A simple example. A 15-person company posts a job ad for its first salesperson. For a CRM vendor, a sales trainer or a recruitment firm, that is a signal: the company is building a sales function. For an office furniture supplier, it is a much weaker one. A signal only has value when it connects to your offer.

How should you read the 20 examples below?

Each example gives you 4 things: where to find it, what it says about the need, which kind of business it helps, and how long it stays warm. The time windows are field benchmarks, not survey data, so adjust them to your own sales cycle. As a rule, the more personal and recent the signal, the shorter the window.

What signals do people give away in public?

These are the strongest signals, because they come from the decision-maker, in their own words.

1. A comment that states a need

• Where to spot it: under a LinkedIn post about your topic ("we have the same problem", "this is exactly what I'm looking for").
• What it says about the need: the person admits the problem in public. They are already thinking about it.
• Who it helps: any B2B business, especially those solving a well-known problem (software, consulting, services).
• Stays warm for: 2 to 7 days.

2. A post asking for a recommendation

• Where to spot it: LinkedIn, professional Facebook groups, industry forums: "can anyone recommend a good accountant in Manchester?"
• What it says about the need: the need is spelled out and the purchase is close. They are already comparing.
• Who it helps: service providers (accountants, lawyers, agencies, freelancers, office fit-out).
• Stays warm for: 24 to 72 hours. After that, they have often chosen.

3. A project announcement

• Where to spot it: posts from the founder or MD: a new branch, a new product, a new market.
• What it says about the need: a project triggers a chain of needs: premises, tools, marketing, hiring, funding.
• Who it helps: marketing agencies, printers, equipment suppliers, insurers, banks, consultants.
• Stays warm for: 2 to 6 weeks, while the project is being set up.

4. A new role announced

• Where to spot it: "I'm joining…" posts or an updated LinkedIn profile.
• What it says about the need: people starting a role want early wins. They review suppliers and tools in their area.
• Who it helps: software vendors, consultants, trainers, suppliers tied to the function (HR, finance, marketing).
• Stays warm for: the first 2 to 3 months.

5. A question in a group or forum

• Where to spot it: LinkedIn or Facebook groups, Slack or Discord communities, industry forums.
• What it says about the need: the person is stuck on a specific issue and is asking for help.
• Who it helps: experts and providers who can answer that exact question.
• Stays warm for: 1 to 7 days.

6. Repeated reactions to the same topic

• Where to spot it: several likes or reshares on posts about the same problem, within a short time.
• What it says about the need: one like says almost nothing. Repeated on one theme, it shows active interest.
• Who it helps: any business, as a supporting signal to confirm another one.
• Stays warm for: 1 to 2 weeks, and only combined with another signal.

What signals come from the life of the company?

These are usually public and easy to check. In the UK, Companies House lets you see basic company details and current and past directors for free, and you can set up free email alerts when a company changes its details, such as a new director. In France, the equivalent events are published in the BODACC, the official bulletin of company registrations, sales, changes and removals.

7. A job ad linked to your offer

• Where to spot it: the careers page, job boards, LinkedIn Jobs.
• What it says about the need: the company is growing a specific function. A sales hire means sales tools. A finance hire means extra capacity or a reorganisation.
• Who it helps: software tied to the role, recruiters, trainers, staffing agencies, equipment suppliers.
• Stays warm for: while the ad is live, plus 2 to 4 weeks.

8. A new office or site

• Where to spot it: founder posts, local press, signage on the building, a new address on the company register.
• What it says about the need: the site has to be fitted out, equipped, insured, connected and signposted.
• Who it helps: fit-out, furniture, IT, telecoms, security, cleaning, signage, insurance.
• Stays warm for: 1 to 3 months before opening, and the first month after.

9. A new website

• Where to spot it: a visible redesign, a launch post, a new "careers" or "shop" page.
• What it says about the need: the company is investing in its image and wants results: traffic, enquiries, sales.
• Who it helps: SEO, paid ads, photo and video, copywriting, booking tools.
• Stays warm for: 1 to 2 months.

10. A published funding round

• Where to spot it: press release, business press, founder post.
• What it says about the need: money arrives with a plan: hire, sell more, open new markets.
• Who it helps: recruitment, consulting, software, agencies, office space, training.
• Stays warm for: 1 to 3 months. Suppliers get picked soon after the news.

11. A change of leadership

• Where to spot it: a director appointment on Companies House, a LinkedIn post, local press.
• What it says about the need: a new leader reviews the organisation, costs and suppliers.
• Who it helps: consulting, accounting, banking, insurance, management software, training.
• Stays warm for: the first 3 months.

12. A new line of business on the register

• Where to spot it: in France, a change of registered activity published in the BODACC; elsewhere, the launch post or a new trading name.
• What it says about the need: the company is entering a new trade. It does not yet have the tools, suppliers or clients for it.
• Who it helps: suppliers to the new trade, insurers, advisers, financial management, training.
• Stays warm for: 1 to 3 months after publication.

13. A takeover or business acquisition

• Where to spot it: deal announcements, the buyer's posts, sales and transfers in the BODACC for France.
• What it says about the need: the new owner wants to make their mark: tools, processes, branding, financing.
• Who it helps: accountants, banks, software, agencies, operations consultants.
• Stays warm for: the first 3 to 6 months.

14. A newly registered company

• Where to spot it: new incorporations on Companies House (UK) or registrations in the BODACC (France), "I've started my company" posts.
• What it says about the need: everything has to be set up: bank, insurance, accounting, website, first clients.
• Who it helps: accountants, banks, insurers, web designers, registered office providers.
• Stays warm for: the first 3 months.

What signals come from events?

A trade show or a webinar gathers people with a topic on their mind, on a known date.

15. A company exhibiting at a trade show

• Where to spot it: the exhibitor list on the show's website, "come and see us on stand B12" posts.
• What it says about the need: it is spending money to find clients. It needs a stand, printing, follow-up of contacts.
• Who it helps: stand builders, printing, merchandise, logistics, contact follow-up tools, lead generation.
• Stays warm for: 3 to 4 weeks before the show and 2 weeks after.

16. Signing up for or speaking at a webinar

• Where to spot it: "I'm attending…" posts, the speaker list, questions asked in the public chat.
• What it says about the need: the person is learning about a topic. They are in research mode.
• Who it helps: consultants, trainers, software vendors in that area.
• Stays warm for: 1 to 2 weeks.

17. Speaking at a conference or on a podcast

• Where to spot it: conference programmes, industry podcast episodes.
• What it says about the need: the person states their priorities in public. You know what they are working on.
• Who it helps: consultants, suppliers on that theme, potential partners.
• Stays warm for: 2 to 4 weeks after it goes out.

What signals come from purchasing and suppliers?

These are the most direct signals: the buyer says they are looking.

18. A public tender

• Where to spot it: in the UK, Find a Tender, the government service for high-value public sector contracts; in France, the BOAMP.
• What it says about the need: the need, budget and timeline are written down.
• Who it helps: any company selling to public buyers: works, services, supplies, IT.
• Stays warm for: until the submission deadline stated in the notice.

19. A search for a supplier or provider

• Where to spot it: classified sites, marketplaces, "we're looking for a provider to…" posts.
• What it says about the need: the need is defined and the company is comparing offers.
• Who it helps: service providers, subcontractors, freelancers, manufacturers.
• Stays warm for: a few days to 2 weeks.

20. Public frustration with a current supplier

• Where to spot it: a post complaining about a tool or provider, a negative review left by a company about a supplier.
• What it says about the need: the person is ready to switch. They just need a credible alternative.
• Who it helps: competitors of that supplier with a simple switching offer.
• Stays warm for: 1 to 2 weeks.

Summary table of the 20 buying signals

How do you tell a real signal from noise?

A real signal passes 4 tests. If it fails one, keep the company on a watch list and don't write yet.

1. It has a date. You can say when it happened. An 8-month-old post is no longer a signal.
2. It connects to your offer. You can explain in 1 sentence why this event creates a need you solve.
3. It points to someone who decides or influences. An intern liking a post won't make the company buy.
4. It can be checked. You can show the source: the post, the ad, the official record.

The most common noise:

• a single like with nothing else behind it;
• the work anniversary LinkedIn highlights (nothing new is happening);
• a job ad that has been reposted for months and has nothing to do with your offer;
• a company in insolvency proceedings: it has needs, but rarely the budget or the freedom to choose suppliers;
• a trade show visitor with no decision role, or a company too small for your offer.

A good habit: stack signals. A job ad alone is a medium signal. A job ad plus a founder post about growth plus a new office means a company on the move.

What 3 things must line up before you reach out?

You need the right person, the right moment and the right reason to write. If one is missing, the message falls flat.

• The right person: the one who owns the topic and can say yes. In a small business, often the founder or MD. In a larger one, the head of the function concerned.
• The right moment: the signal is still warm, based on the windows in the table.
• The right reason to write: the signal itself, tied to a specific benefit for them.

Then add 2 practical conditions: a reliable way to reach them (verified email, phone or LinkedIn) and a channel where they actually reply. A great signal on someone you can't reach is worth nothing.

On the rules side, B2B outreach is regulated differently in each country. If you sell into France, the CNIL explains that B2B email prospecting can rely on legitimate interest when the message relates to the person's job, and that they must be able to opt out easily (see the CNIL page on email prospecting, in French). For your own market and case, check with a legal adviser.

How do you turn a signal into a first message?

Your first message names the signal, links it to a likely need, and asks one simple question. 3 sentences are enough.

Hi Claire, I saw you're opening a second office in Leeds in January. At this stage, IT for the new site often gets decided in a rush. Would a checklist of what to sort out 6 weeks before opening be useful?

This message (an example, Claire is not a real person) shows you paid attention, talks about her project and offers something useful without asking for a meeting. For templates by signal type, read our guide to first prospecting messages and opening lines.

Where can you find these signals every day without paid tools?

A 30-minute daily routine is enough to start.

1. 10 minutes on LinkedIn: search recent posts using the words your client uses when they have the problem ("we're looking for", "can anyone recommend", "we're opening"). The full method is in our guide to signal-based LinkedIn prospecting.
2. 10 minutes on official sources: set up Companies House alerts on the companies you follow, and check Find a Tender for public contracts in your field. If you sell into France, the BODACC and BOAMP both offer alerts.
3. 10 minutes on ads and events: job ads linked to your offer, exhibitor lists from trade shows in your industry, supplier marketplaces.

Log each signal with its date, source and the person concerned. Reach out within 48 hours on personal signals. If you sell several products, keep one list per product: the same signal won't fit every offer. That is the daily reality of independent sales agents, see how independent sales agents find clients for each line.