Buying Signals in B2B Sales: Which Ones Actually Matter (And Which Are a Complete Waste of Time)
By Dave Curran, Co-Founder, Firmbase | March 2026 | 8 min read
Everyone's talking about buying signals. Every sales tool on the market promises to surface them. Every SDR playbook tells you to "monitor intent data" and "act on triggers."
We're calling BS on that: most of what gets called a buying signal is noise. And chasing noise is exactly why your reps are spending half their week doing research that doesn't move the needle.
This article is about the signals that are actually predictive - the ones where, when you see them, you have a genuinely good reason to pick up the phone or send a message. And it's equally about the ones you should ignore, because they're wasting your time and making you look like you're stalking your prospects.
First, let's agree on what a buying signal actually is
A buying signal is an event or change at a company that meaningfully shifts the probability they'll buy from you within the next 3-12 months. That's it. Not "this person opened your email three times." Not "this company's LinkedIn follower count went up."
A real buying signal changes the account's status quo. Something happened that creates a need, unlocks budget, or opens a decision-making window that didn't exist before.
When you filter your signals through that lens - does this event actually change something at this company? - you'll find that most of what you're tracking doesn't pass the test.
"We used to have a massive list of 'signals' in our prospecting tool. When I actually looked at which ones led to conversations, it was basically three things. Everything else was just making the dashboard look busy."
- Sarah T., Head of Sales, B2B SaaS company, 45 employees
The signals that are genuinely predictive
Revenue or net asset growth
A company that has grown its net assets significantly year on year is a company with more budget, more confidence, and more appetite to invest. Growth creates problems - capacity constraints, team scaling challenges, process gaps - and those problems create buying windows.
In the UK, you can see this in Companies House filings. Even for companies that don't disclose turnover (most small companies don't), net asset trajectory is a reliable growth proxy. A company going from £800k to £1.1m to £1.6m in net assets over three years is clearly going somewhere.
Verdict: HIGH SIGNAL - Act on this. Prioritise companies showing consistent upward trajectory over single-year spikes.
New director or senior leadership appointment
New leadership is one of the most reliable buying triggers in B2B sales. A new director comes in with a mandate to make their mark. They're evaluating everything their predecessor set up. They haven't yet locked in vendor relationships. And crucially, they're often more willing to have conversations in the first 90 days than at any other point in their tenure.
In the UK, director appointments are filed at Companies House - meaning you can see exactly when someone joined the board. This isn't a rumour or a LinkedIn post. It's a legal filing.
Verdict: HIGH SIGNAL - Especially powerful when combined with revenue growth. New leader at a growing company = very warm account.
Specific recruitment patterns
What a company is hiring for tells you more about their strategic priorities than almost anything else they'll publish publicly. A company posting five SDR roles is scaling their revenue team - and a scaling revenue team needs intelligence tools. A company hiring a CFO is preparing for something significant.
The key is specificity. 'They're hiring' is not a signal. 'They've posted three revenue operations roles in the last month' is a signal.
Verdict: HIGH SIGNAL - One of the most underused signals available. Job boards are public. Read them properly.
Funding rounds
Capital raised means budget allocated. A company that has just closed a funding round has investors expecting them to deploy that capital against growth targets - which means they're actively buying things. The window here is shorter than it seems; most of the budget decisions get made in the first quarter after a raise.
Verdict: HIGH SIGNAL - Act quickly. Budget decisions post-raise happen fast.
The signals that are mostly noise
LinkedIn engagement - comments, likes, post activity
Right, let's call this one out properly: finding that someone at a target company liked a post about digital transformation and then messaging them to say "I noticed you're interested in digital transformation" is not signal-based selling. It's surveillance with a thin layer of personalisation painted over it.
UK buyers see through this immediately. The 'I noticed you liked...' opener gets deleted faster than any generic cold email.
Verdict: LOW SIGNAL - Stop doing this. You're not building a relationship, you're demonstrating that you have a prospecting tool. UK buyers hate it.
Generic intent data from content consumption
The intent data market has done a remarkable job of convincing sales teams that knowing someone googled 'cloud migration best practices' means they're in the market for cloud migration services. They're not. They read an article.
Intent data is most useful at the account level (multiple people at a company showing consistent interest over time) and completely useless at the individual level.
Verdict: LOW-MEDIUM SIGNAL - Account-level patterns over time can be useful. Individual content consumption is almost always noise.
Job title filters as a proxy for fit
"Head of Sales at a company with 50 employees" is not a buying signal. It's a demographic filter. It tells you nothing about whether this person has budget, urgency, or a problem your product solves.
Verdict: NOT A SIGNAL - A filter for finding people, not a trigger for outreach. Use it to define your universe, not to prioritise it.
The signal stack we recommend for UK B2B
Tier 1 (act immediately): New director appointment + revenue growth in same company. This combination is the highest-confidence buying window we've found in UK SMB data.
Tier 2 (act within 2 weeks): Funding round announcement. Revenue growth without a leadership change. Recruitment for a role that directly signals your use case.
Tier 3 (add to nurture): Company age vs. growth trajectory suggesting scaling phase. Single-signal accounts without corroborating evidence.
A word on timing
Even the best signal is useless if you act on it at the wrong time. A director appointment that happened 18 months ago is not an opportunity - it's history. The company has already made its decisions. The window has closed.
"The moment I started filtering by signals rather than just industry and size, my reply rate went up considerably. But the bigger change was the quality of conversations - people were actually in a position to buy."
- James R., Account Executive, B2B Services firm, Manchester
How Firmbase handles this
Firmbase was built specifically around this problem. We pull buying signals directly from Companies House filings, job posting data, and funding round information - and surface them on every company profile, ranked by recency and strength.
You don't build a workflow. You don't configure 15 filters. You search for the kind of company you're looking for in plain English - "growing IT consultancies in London with a new director" - and you get a prioritised list with the signals already surfaced.
Start your free trial at app.firmbase.co/signup
Frequently asked questions
What is a buying signal in B2B sales?
A buying signal is an event or change at a company that meaningfully increases the probability they'll purchase within the next 3-12 months. The most reliable signals in UK B2B sales include significant revenue growth from filed accounts, new director appointments, specific recruitment patterns, and funding rounds.
How do I find buying signals for UK companies?
The most reliable UK-specific buying signals come from Companies House filings, which are publicly available for every registered UK company. Firmbase combines both sources automatically, surfacing signals for every company in your ICP without manual research.
Are LinkedIn signals worth acting on for B2B sales?
LinkedIn engagement - likes, comments, post activity - is a very weak buying signal and is frequently counterproductive when used as an outreach trigger. UK buyers in particular respond poorly to 'I noticed you liked a post' style outreach.
What is the best buying signal for timing B2B outreach?
The combination of a new director appointment with consistent revenue growth is the most reliable buying window in UK SMB data. Acting within the first 4-8 weeks of a director appointment significantly increases reply rates.
How many buying signals should I track?
Most effective sales teams track two to three primary signals aligned to their specific use case. Pick the signals most directly correlated to a buying window for your product and ignore the rest.
What buying signals can I get from Companies House for free?
For any UK registered company you can see: director appointments and resignations with dates, filed annual accounts showing net assets and cash position, persons with significant control, and company status. Accessing this at scale requires either significant manual effort or a tool like Firmbase.
About the author
Dave Curran is the co-founder of Firmbase, a UK B2B sales intelligence platform that helps sales teams find, prioritise, and reach the right accounts without needing a RevOps team to make it work. Before Firmbase, Dave co-founded Love Mondays (acquired by Glassdoor, where he went on to serve as VP of Product) and Openvolt.
Firmbase helps UK B2B sales teams discover their complete account universe, prioritise based on real buying signals, and reach out with genuine relevance - without the complexity of enterprise tools. Start your free trial