B2B Advertising: The Complete Guide to Paid Ads That Generate Revenue
B2B advertising is expensive, confusing, and most companies do it wrong. This guide covers everything: which platform, how much to spend, what your ads should say, and how to know if it's working.
James Green
22 min read
The Quick Version
Platform: LinkedIn for targeting by job title. Google for capturing search intent. Meta for cheap retargeting and broad B2B cold prospecting.
Budget: You can start testing LinkedIn for £300/month with a hyper-targeted company list. Scale to £1,500-3,000/month once proven.
Timeline: Commit for 90 days minimum. B2B sales cycles are long. Respect that.
Creative: Name the problem. Show the proof. Make the next step obvious.
Measurement: Pipeline generated and cost per closed deal. Ignore vanity metrics.
B2B Advertising Platforms Compared
| Platform | Strengths | Weaknesses | Avg CPC | Min Budget |
|---|---|---|---|---|
| Precise B2B targeting. Job title, company, industry. | Expensive. Small audiences. | £8-15 | £300/mo starter, £1,500/mo to scale | |
| Google Search | Captures existing intent. High conversion rates. | No B2B-specific targeting. Keyword competition. | £2-10 | £1,000/mo |
| Meta (FB/IG) | Cheapest CPMs. Brilliant retargeting. Lookalikes. Effective cold prospecting for broad B2B audiences (trades, restaurants, construction). | Limited precise job-title targeting. | £0.50-3 | £300/mo |
| Google Display | Massive reach. Cheap impressions. | Low intent. Poor click quality. Mostly bots. | £0.30-1 | £500/mo |
| YouTube | Video engagement. Intent targeting from Google. | Requires video production. Longer consideration. | £0.05-0.20/view | £1,000/mo |
Go deeper
For a full head-to-head comparison with real spend data, read our LinkedIn vs Google vs Meta for B2B breakdown.
How Much to Spend on B2B Advertising
| Monthly Budget | What You Can Do | Expected Outcome |
|---|---|---|
| Under £1,500 | LinkedIn starter test (£300/mo with company list targeting). Meta retargeting. Proving the concept before scaling. | Proof of concept. Initial leads. Data to justify scaling. |
| £1,500-5,000 | One primary channel + retargeting. | 10-30 leads/month depending on industry. |
| £5,000-15,000 | Two channels + retargeting + content promotion. | 30-100 leads/month. Enough to build pipeline. |
| £15,000+ | Full multi-channel strategy with dedicated management. | Predictable pipeline. Marketing becomes a revenue engine. |
Platform-specific budgets
For LinkedIn-specific budget guidance, see our LinkedIn Ads Cost guide and Minimum Budget breakdown.
B2B Ad Creative That Converts
Most B2B ads fail because they're vague, corporate, and forgettable. The ads that work follow a simple formula:
Name the specific problem
'Your website gets 1,000 visitors and 2 enquiries' is 10x more effective than 'improve your online presence.'
Show proof, don't claim it
A screenshot of real results beats 'trusted by 500+ companies' (which everyone says and nobody believes).
One message per ad
Don't try to explain your entire product. Make one point. Answer one question. Solve one problem.
Write like a human
'Still chasing the same 3 leads from that trade show?' beats 'Optimise your lead generation pipeline with our innovative solutions.'
Make the next step obvious
'Book a 15-minute call' is clearer than 'Learn more.' Specificity reduces friction.
Need creative inspiration?
See our 4 B2B ad concepts you can steal and Facebook ad examples for B2B.
Measuring B2B Advertising: What Actually Matters
The ultimate metric. Total ad spend / deals closed from ads.
What does it cost to generate a lead your sales team wants?
Total £ value of opportunities created from advertising.
Useful for optimisation, but meaningless without quality data.
Tells you if your creative is working, not if your marketing is.
A/B Testing for B2B Ads: How to Improve Without Guessing
Most B2B advertisers launch campaigns, look at the overall result, and either celebrate or panic. They never learn what specifically worked. A/B testing changes that. It's how you turn advertising from gambling into a repeatable system.
Headline test
Run 2-3 headline variations with the same image and targeting. One problem-focused ('Still losing leads to your competitors?'), one benefit-focused ('Get 30+ qualified leads per month'), one social-proof focused ('How we helped 200 manufacturers grow'). Keep everything else identical.
Why it matters: Headlines account for 50-70% of whether someone clicks. This is the highest-impact test you can run.
Image test
Same headline and copy, different images. Test: real team photo vs. text-on-colour-background vs. result screenshot vs. industry-relevant image. Square (1:1) vs. landscape (1.91:1) on LinkedIn.
Why it matters: The image stops the scroll. A generic stock photo might be costing you 50% of potential clicks without you knowing.
Audience test
Same ad creative, different audience segments. Job titles vs. skills targeting on LinkedIn. Interest-based vs. lookalike on Facebook. Separate by industry or company size to see where your message resonates most.
Why it matters: Your offer might convert brilliantly for manufacturers but terribly for IT companies, even with identical ad creative.
CTA test
Compare 'Book a Call' vs. 'Get a Free Quote' vs. 'Download the Guide' vs. 'Learn More'. The CTA should match the audience temperature: softer for cold, more direct for retargeting.
Why it matters: The wrong CTA can halve your conversion rate. 'Sign Up' scares cold audiences. 'Learn More' is too vague for retargeting.
Format test
Single Image vs. Video vs. Carousel on LinkedIn. Or Single Image vs. UGC-style video on Facebook. Keep the core message the same but adapt it to each format.
Why it matters: Some audiences respond better to video, others to static. You won't know until you test.
The Testing Rule
Test one variable at a time. If you change the headline, image, AND audience simultaneously, you'll never know what made the difference. Run each test for at least 7-10 days with a minimum of 1,000 impressions per variation before calling a winner. Statistical significance matters more than gut feeling.
Attribution: Connecting Ads to Revenue
The gap between "we spent £5k on ads" and "ads generated £50k in revenue" is attribution. Without it, your CFO thinks ads are an expense. With it, they're an investment with a measurable return.
B2B attribution is harder than B2C because the journey is longer and more complex. A buyer might see your LinkedIn ad on Monday, Google you on Wednesday, read 3 articles over the next month, and finally call you after their colleague mentions you. Which touchpoint gets the credit?
Last-click attribution
Credits the final touchpoint before conversion. Simple but misleading. The phone call gets credit, not the LinkedIn ad that started the journey. Good for: nothing, really. This is the default and it's the worst.
LinkedIn Ad → Blog Visit → Google Search → Phone Call. Credit goes to: Google Search.
First-click attribution
Credits the first touchpoint. Better for understanding which channels introduce new buyers. But ignores everything that happened between awareness and conversion.
LinkedIn Ad → Blog Visit → Google Search → Phone Call. Credit goes to: LinkedIn Ad.
Linear attribution
Splits credit equally across all touchpoints. A decent starting point for B2B because it acknowledges that every interaction contributed.
LinkedIn Ad → Blog Visit → Google Search → Phone Call. Each gets 25% credit.
Practical B2B attribution
Use UTMs to track the first touch (how they found you) and the converting touch (what made them act). Report both. Your LinkedIn ad initiated the opportunity. Your case study article closed it. Both matter.
Report: 'First touch: LinkedIn Ads. Converting content: Case study article. Time to conversion: 45 days.'
Watch: LinkedIn Ads for B2B Beginners
If LinkedIn is part of your B2B advertising strategy, this 42-minute tutorial covers everything from account setup to campaign launch.
B2B Advertising by Industry: What Actually Works
Generic advice is dangerous because what works for SaaS doesn't work for manufacturing. Here's what we've seen work across the industries we serve:
Manufacturing & Industrial
£2,000-5,000/moPrimary channels: LinkedIn + Google
LinkedIn for targeting operations directors and procurement managers by company size. Google for capturing searches like 'CNC machining services Yorkshire'. Retarget both audiences on Meta. Focus creative on technical capability, certifications, and lead times. Decision cycles are 3-6 months.
Professional Services (Legal, Accounting, Consulting)
£1,500-4,000/moPrimary channels: Google + LinkedIn
Google captures high-intent searches ('business accountant Manchester'). LinkedIn targets specific industries and company sizes. Content marketing is critical. publish expertise-demonstrating articles. Creative should showcase specific case results and expertise, not generic 'we're a trusted partner' messaging.
SaaS & Technology
£3,000-10,000/moPrimary channels: LinkedIn + Google + Meta
Most competitive B2B advertising category. LinkedIn CPCs are highest (£12-18). Free trials, demos, and freemium models work as CTAs. Product-led growth companies should focus on Google (capturing search intent) and Meta retargeting (cheap CPCs for demo sign-up nudges). Thought Leader Ads on LinkedIn for founder-led brands.
Training & Education (B2B)
£1,000-3,000/moPrimary channels: Meta + LinkedIn
Meta for course promotion and retargeting (lower ticket values suit cheaper CPCs). LinkedIn for corporate training sales targeting L&D directors. Webinars and free taster sessions work well as lead magnets. Video content showing the training in action outperforms static ads.
The 6 B2B Advertising Mistakes We See Every Week
1. Running LinkedIn's default settings
Fix: Disable Audience Network. Use manual bidding. Narrow your audience. LinkedIn's defaults maximise their revenue, not your results.
2. No retargeting in place
Fix: 97% of visitors leave without converting. Retargeting costs £0.30-1.50/click vs £8-15 for cold. Install your pixels and set up retargeting from day one.
3. Evaluating too early
Fix: 4 weeks of data is noise, not signal. Commit to 90 days. The companies who succeed are the ones who don't panic after week 3.
4. Generic ad creative
Fix: If your ad could work for any company in your industry, it's too generic. Specific problems, specific audiences, specific proof.
5. No CRM tracking
Fix: If you can't see which ads produce deals (not just leads), you're optimising blind. Connect your ads to your CRM via UTM parameters.
6. Chasing cheap leads over good leads
Fix: A £150 lead that closes at 5% is worth more than a £30 lead that closes at 0.5%. Optimise for quality, not quantity.
Frequently Asked Questions
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