Evergreen Growth & Marketing - B2B LinkedIn Ads Agency
    Meta AdvertisingMar 20, 2026

    Facebook Ads for B2B: The Complete Guide for Small Businesses

    Everyone says "LinkedIn for B2B, Facebook for B2C." They're half right. Facebook is terrible for cold B2B prospecting. It's brilliant for everything else. Here's how to use it properly.

    JG

    James Green

    20 min read

    The 60-Second Version

    Facebook works brilliantly for B2B in these scenarios: retargeting website visitors, reaching small business owners, building lookalike audiences, and cold prospecting in broad industries (construction, restaurants, trades, retail) where interest targeting is good enough.

    Where it's weaker: precise job-title targeting (e.g., "CFOs at 50-200 person manufacturers"). For that level of precision, use LinkedIn. But don't write off Facebook for all cold B2B. it depends on your audience.

    Budget: Start with £300-600/month for retargeting. Scale to £1,500/month for cold + retargeting.

    First step: Install the Meta Pixel on your website. Without it, nothing else works.


    Why Facebook Actually Works for B2B (When Used Correctly)

    Decision-makers don't stop being people when they leave LinkedIn. The Operations Director who ignores your LinkedIn InMail during work hours is scrolling Facebook at 8pm. Your CFO prospect is on Instagram on Saturday morning.

    The difference: on LinkedIn, you're competing with every other B2B advertiser for a premium slot. On Facebook, your B2B ad is competing with holiday photos and recipe videos. Your ad stands out because it's the only business-related thing in the feed.

    And here's the real advantage: Facebook's CPMs are £5-15. LinkedIn's are £25-45. For the price of showing your ad to 1,000 people on LinkedIn, you can show it to 3,000-5,000 people on Facebook. If you're retargeting people who already know you, that reach advantage is massive.

    B2B Targeting on Facebook: The Workarounds That Actually Work

    Facebook doesn't have LinkedIn's job title targeting. You can't select "CFOs at manufacturing companies with 50-200 employees." But there are workarounds that are surprisingly effective:

    Custom Audiences: Your Email List

    Upload your CRM contacts, email subscribers, or past client list. Facebook matches roughly 50-70% of B2B emails. This is your warmest audience and the cheapest to convert.

    Website Retargeting

    Anyone who visited your website in the last 180 days. They already know who you are. Segment by page visited: pricing page visitors are hotter than blog readers.

    Business Page Admins

    Facebook lets you target people who admin a business page. This is a surprisingly good proxy for business owners and marketing decision-makers. Not perfect, but effective for SMB targeting.

    Lookalike Audiences

    Upload your best customer list. Facebook finds people who look like them. A 1% lookalike of your top 100 clients is usually better than any interest-based targeting you can build manually.

    Interest Stacking

    Combine industry interests (e.g., 'CNC machining' + 'manufacturing equipment') with behaviour signals (business page admin + frequent traveller). Layer demographics (age 30-55). Not LinkedIn-precise, but workable.

    Facebook vs LinkedIn: Cost Comparison for B2B

    MetricFacebookLinkedIn
    CPC£0.50-3.00£8-15
    CPM£5-15£25-45
    CPL (cold)£15-50£75-180
    CPL (retargeting)£5-20£30-80
    Lead quality (cold)LowerHigher
    Lead quality (retarget)HighHigh
    Job title targetingLimitedExcellent
    Min viable budget£300/mo£300/mo (starter test), £1,500/mo to scale

    The smart play

    Use LinkedIn for cold targeting (specific job titles, industries). Use Facebook to retarget everyone LinkedIn sends to your website. You pay LinkedIn's premium price once. Then you retarget at Facebook's cheap price for months.

    Read our full platform comparison →

    B2B Facebook Campaign Structure (Copy This)

    Here's the campaign structure that works for most B2B companies with budgets under £5k/month:

    Campaign 1: Retargeting

    40% of total

    Objective: Conversions

    Audience: Website visitors (last 90 days)

    Creative: Case studies, testimonials, direct CTA to book a call

    This is your highest-ROI campaign. Start here.

    Campaign 2: Warm Nurture

    20% of total

    Objective: Traffic/Engagement

    Audience: Email list custom audience + engaged visitors

    Creative: Educational content, tips, industry insights

    Keep you top of mind without hard selling.

    Campaign 3: Lookalike Prospecting

    30% of total

    Objective: Lead Generation

    Audience: 1% lookalike of best customers

    Creative: Problem-aware content, lead magnets, free tools

    Wider funnel. Expect lower quality but higher volume.

    Campaign 4: Social Proof

    10% of total

    Objective: Engagement

    Audience: Pricing page visitors (last 30 days)

    Creative: Client results, company credibility, team content

    For people close to a decision. Reduce risk perception.

    B2B Facebook Ad Creative That Actually Works

    B2B ads on Facebook need to work differently than on LinkedIn. The feed is casual. Your ad is between someone's holiday photos and a meme their uncle shared. If your ad looks like a corporate brochure, people scroll past it faster than anything.

    What works:

    Raw video testimonial

    A client talking to camera about their experience. Phone-quality is fine. Actually, phone-quality is better because it looks real.

    Before/after results

    Show a dashboard, a metric, a transformation. Concrete proof that something changed. Numbers beat adjectives.

    Problem-first copy

    'Still chasing the same 3 leads from that trade show 6 months ago?' Hit the pain point in the first line. Then offer the solution.

    UGC-style selfie ads

    Founder or employee talking direct to camera. 'POV: your competitor just stole your biggest client.' Feels native to the feed.

    Need creative inspiration?

    See our 4 B2B ad concepts you can steal with full mockups and breakdown of why each format works.

    Don't Skip This: Install Your Meta Pixel First

    Everything in this guide depends on having the Meta Pixel installed on your website. Without it, you can't retarget visitors, track conversions, or build lookalike audiences. It takes 15 minutes to set up properly.

    Follow our Meta Pixel setup guide →

    Frequently Asked Questions

    Want Help Setting Up B2B Facebook Ads?

    Book a free call. We'll look at your current setup and tell you whether Facebook, LinkedIn, or both makes sense for your business.

    Book a Free Strategy Call

    Related Resources