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LinkedIn Ads for B2B: What Actually Works (And What Doesn't)

LinkedIn Ads have a reputation problem. Expensive, hard to measure, and mostly underperforming. But the platform is fine. The problem is how most B2B teams use it.

Practitioners who have collectively managed hundreds of millions in B2B ad spend agree: LinkedIn works when you treat it as a place where professionals browse, not buy.

The fundamental mistake

Most LinkedIn campaigns start with a demo request. The logic seems sound: you can target the exact right job titles at the exact right companies, so why not go straight for the conversion?

Adam Goyette, who has analysed over $15 million in LinkedIn ad spend across multiple B2B companies, puts it bluntly:

“Targeting the right companies does not mean those buyers are ready to talk to vendors. The ad is asking for a buying decision before the buyer has even fully framed the problem.”

This is the core mistake. LinkedIn’s targeting is exceptional — you can reach specific companies, titles, and industries in a native professional environment. But precise targeting does not equal purchase intent. Only around 10% of your target market is actively buying at any given time. The remaining 90% represent future opportunity.

When LinkedIn Ads make sense

LinkedIn suits a narrow set of businesses. Before spending a penny, be honest about whether the channel fits yours. Based on guidance from Kevin Lord Barry, co-founder of Right Percent and author of Do What Works: The B2B Ads Handbook, and Kamil Rextin, founder of 42 Agency, LinkedIn Ads work best when:

Skip LinkedIn if you are selling low-cost products, targeting consumers, or operating on minimal budgets. As Kevin Lord Barry notes:

“LinkedIn is the only platform where you can target specific companies, titles, and industries in a native environment. People give information about their professional life freely — the data they have is incredibly robust for targeting.”

The biggest strategic error is treating LinkedIn like a search engine. Search captures existing demand — someone Googles “CRM software” because they are already looking. LinkedIn is fundamentally different. People are scrolling between meetings, catching up on industry news, checking who viewed their profile.

Adam Goyette found that when companies published data about how their market was actually performing — industry benchmarks, performance metrics, peer comparisons — engagement rates spiked. Professionals want to know where they stand relative to their peers. That is a very different motivation from “I need to buy software today.”

What works on LinkedIn, roughly in order of effectiveness for cold audiences:

  1. Industry benchmarks and data. Peer comparison content drives engagement because professionals are naturally competitive.
  2. Teardown-style analysis. Breaking down systems, workflows, and common solutions attracts operators looking to improve.
  3. Tactical resources. Guides, frameworks, and playbooks work well after an audience has engaged with initial content.
  4. Direct demo offers. Only effective after prior brand interaction.

Structure campaigns by funnel stage

The practitioners all agree: you need a full-funnel approach, not just bottom-of-funnel conversion campaigns.

Kamil Rextin at 42 Agency recommends a specific budget split:

This structure works especially well in enterprise and healthcare segments with longer buying cycles. These campaigns should interlink rather than run in strict sequence — real buyer journeys are messy, not linear.

Creative that cuts through

Kevin Lord Barry’s team has cut customer acquisition costs by 46% across $100M+ in spend. His core finding: creative is responsible for over 60% of an ad’s performance. Yet most B2B ads are bland, forgettable, and look identical to every competitor.

The four levers that matter most:

  1. Main copy — Speak to your audience specifically. Call out who the ad is for. “Demand gen leaders at Series B SaaS companies” is better than “marketing professionals.”
  2. Visual headline — Make it impossible to miss. Clarity beats cleverness. Your audience wants to know what the product is, what it does, and what value it brings.
  3. Main visual — Images with real people outperform stock graphics. Use bold colours to stand out against LinkedIn’s blue-and-white interface. Square images (1200x1200) maximise mobile real estate and achieve 75% higher click-through rates.
  4. CTA — Split test everything. A different call-to-action can dramatically change conversion rates.

One common mistake Kevin highlights: making the ad so polished that it hides the main message. In B2B, clarity always beats aesthetics.

Thought leader ads are the secret weapon

Adam Goyette’s most surprising finding: the best-performing LinkedIn ad format is an amplified organic post. His strategy of boosting posts from credible thought leaders as paid ads achieves click-through rates of up to 12% — dwarfing the LinkedIn average of around 0.4%.

The approach:

  1. Identify authentic voices within your company or industry — not the CEO who posts once a quarter, but people who genuinely share useful insights.
  2. Let them post organically first. See what resonates naturally.
  3. Amplify the winners using LinkedIn’s thought leader ad format to push proven content to your target account list.
  4. Retarget engagers with increasingly specific offers.

This works because LinkedIn users trust people, not brands. A personal post with genuine insight feels native. A branded ad with stock photography feels like an interruption.

Targeting and audience strategy

Over-segmentation is a common trap. Kevin Lord Barry’s Right Percent team warns that splitting five verticals across three regions with only $20K/month leaves you with less than $1,500 per campaign — nowhere near enough to optimise.

Practical targeting advice:

Measurement is where most teams fail

LinkedIn defies clean categorisation — part brand, part demand gen, part direct response. Most teams never measure it properly, which is why so many conclude the channel “doesn’t work.”

Kamil Rextin recommends going beyond last-touch attribution:

One 42 Agency client achieved strong engagement metrics — 0.7-8% cold CTR on image ads, 8-10% engagement on promoted posts, 3% CTR on document ads — but direct attribution remained stubbornly low after five months on a $10-12K monthly budget. The influence was real but invisible to standard reporting.

Webinars rarely work (unless you fix the topic)

Kevin Lord Barry is direct on this:

“Most ads for webinars don’t do well because the webinars are focused on topics the advertiser cares about, but not what their customers care about.”

If you are promoting webinars through LinkedIn Ads, the topic has to solve a genuine problem your audience has — not showcase your product. “How we built our amazing platform” gets ignored. “The benchmarking data every VP of Marketing needs for 2026 planning” gets clicks.

Budget expectations

Be realistic about what LinkedIn requires:

Anything less than $10K/month and you are likely not generating enough data to optimise effectively.

The bottom line

LinkedIn Ads work for B2B — but only when you respect the platform’s nature. Stop asking cold audiences to book demos. Start with content that earns attention, build familiarity through the funnel, measure influence rather than just last-click conversions, and give campaigns enough time and budget to prove themselves.

As Adam Goyette summarises: the problem is not LinkedIn. The problem is marketers treating it like search when it is fundamentally a place where professionals browse, learn, and build relationships. Match your content to that reality and the results follow.

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