Google Ads vs Facebook Ads for B2B: Which Books More Calls?
Google Ads reaches people who are already searching for what you sell. Facebook and Instagram ads reach the right people before they start searching. For B2B, the better choice depends on whether buyers already know they need you. Here’s how to decide, and when to run both.
The short answer
Start with Google Ads
if people already search for your service, for example “outsourced IT support” or “B2B appointment setting”. You reach them at the moment they’re looking.
Start with Facebook and Instagram ads
if buyers don’t know to search for you yet, or if search is limited in your niche. You can reach the right people and build demand.
Run both
once one is working. Search captures demand; social creates it and keeps you in front of people who’ve visited your site.
Google Ads vs Facebook Ads side by side
| Google Ads (Search) | Facebook and Instagram ads | |
|---|---|---|
| How people find you | They search, and your ad appears for related keywords | Your ad appears in their feed based on the audience you choose |
| Buyer intent | High: they’re actively looking | Lower at first: you’re interrupting, so the offer has to earn attention |
| Targeting | Keywords and match types, plus your own customer lists | Custom audiences from your own data, lookalike audiences and other options |
| Creative | Mostly text ads | Images and video matter a lot |
| Best funnel | Ad → focused landing page → call | Ad → lead magnet or lead form → follow-up → call |
| Best for | Capturing existing demand | Creating demand and retargeting |
How Google Ads targeting works
On Google Search, you choose keywords: words or phrases describing your product or service that help decide when your ad can appear. Google says ads can be eligible to show based on how closely your keywords match what someone searches, and match types let you control which searches your ads appear for (Google Ads Help, checked 26 October 2026).
Google also offers Customer Match, which lets you use your own customer information to reach and re-engage those customers across Search, the Shopping tab, Gmail, YouTube and Display (Google Ads Help, checked 26 October 2026).
For B2B, this means you reach buyers when they search for exactly what you offer, and you can tailor bids or messages for accounts you already know.
How Facebook and Instagram targeting works
Meta’s custom audiences let you build audiences from your own data, such as website visitors tracked through the Meta Pixel, customer lists, and people who’ve engaged with your content or lead forms (Meta Business Help Center, checked 26 October 2026).
From a custom audience, you can create a lookalike audience: new people who share similar characteristics to your existing customers. Meta says an audience built from your best customers, rather than all of them, may give better results depending on your goals (Meta Business Help Center, checked 26 October 2026).
For B2B, a list of your best clients can become the starting point for reaching similar decision makers. This is how we run Google, Facebook and Instagram ads aimed at B2B buyers, with LinkedIn-level targeting for less.
Thinking about cost per lead
There’s no fixed rule for which platform gives a lower cost per lead. It depends on your market, offer, competition and how good your funnel is. A few principles help:
Search leads arrive with intent
Someone who searched for your service may be closer to buying, so compare platforms on what happens after the click.
Social leads usually need more nurturing
Someone who downloaded a guide may not be ready for a sales call yet.
Judge platforms by booked calls and pipeline, not just leads
A cheaper lead that never books a call isn’t cheaper.
Track the whole journey
Connect ads to your CRM so you can see which leads become meetings.
Funnel design is what makes either work
- 1Search adMatches the words they typed
- 2Landing pageSame promise, one clear next step
- 3CallBooked straight from the page
For Google Ads
send each group of keywords to a landing page that matches the search, with one clear next step, usually booking a call.
For Facebook and Instagram
offer something useful first, such as a guide, checklist or short video, then follow up by email and with retargeting ads until the prospect is ready to talk.
Many B2B campaigns fail because they send cold social traffic straight to a “book a call” page, or send search traffic to a generic homepage.
When to run both
Running both often works well once one channel is proven:
- Use Google Ads to capture people searching for your service
- Use Facebook and Instagram retargeting to stay in front of people who visited but didn’t book
- Use lookalike audiences to reach new decision makers who resemble your best clients
Read more about B2B lead generation through PPC advertising.
How RocketFuel can help
Our digital ad management service runs Google Ads for B2B companies, and our Meta ads funnels service builds Google, Facebook and Instagram ads aimed at B2B buyers, with LinkedIn-level targeting for less, from first ad to booked call.
Sources (all checked 26 October 2026)
- Google Ads Help, Keywords: support.google.com/google-ads/answer/6323
- Google Ads Help, About Customer Match: support.google.com/google-ads/answer/6379332
- Meta Business Help Center, About custom audiences: www.facebook.com/business/help/744354708981227
- Meta Business Help Center, About lookalike audiences: www.facebook.com/business/help/164749007013531
Are Google Ads or Facebook Ads better for B2B?
It depends on whether buyers already search for what you sell. Google Ads captures people who are searching; Facebook and Instagram ads reach the right people before they search. Many B2B teams use both.
Which has a lower cost per lead, Google Ads or Facebook Ads?
There’s no fixed answer. It depends on your market, offer and funnel. Judge each platform by booked calls and pipeline, not just the number of leads.
Can you target business decision makers on Facebook?
You can build audiences from your own data, such as customer lists and website visitors, and create lookalike audiences of people similar to your best customers.
Should I run Google Ads and Facebook Ads at the same time?
Often, yes, once one is working. Google captures existing demand, while Facebook and Instagram can create demand and retarget people who visited your site.
Does RocketFuel run both Google and Facebook ads?
Yes. We run Google, Facebook and Instagram ads aimed at B2B buyers, with LinkedIn-level targeting for less.
Not sure where your ad budget should go first?
Book a call and we’ll talk through your buyers, how they search and which platform makes sense to start with. No commitment required.
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