A founder we worked with, a B2B SaaS tool for warehouse inventory, spent four months and roughly 6 lakh rupees on Facebook ads before asking us anything. He had leads. He had almost no pipeline. The clicks were cheap, the demos booked were plentiful, and the deals closed were close to zero.
The problem wasn't his creative or his targeting. He'd picked the wrong channel for where his buyers actually were in their decision.
This is the question we get asked constantly: facebook ads agency vs google ads agency, which one do you hire first when you've got one budget and one shot at proving paid ads work for your business. The honest answer depends on one thing most founders skip checking before they spend a rupee.
Intent Vs Interest: The Real Difference
Google Ads shows up when someone types "warehouse inventory software" into a search bar. They're already looking. They already know they have a problem and they're actively hunting for a fix. That's high intent, and it's the entire reason search advertising has stayed dominant for two decades.
Facebook and Meta ads work the opposite way. Nobody opens Instagram looking for inventory software. You interrupt someone scrolling photos of their cousin's wedding and try to convince them your product matters right now. That's interest-based marketing, and it can work brilliantly, but it starts from zero.
Here's the catch nobody tells you upfront. Google Ads only works if people are already searching for your category. If your product category has close to zero monthly search volume, a google ads agency can build you the most technically perfect campaign on earth and it will sit there with impressions in the single digits.
That's exactly what happened with a niche legal-tech client we picked up last year. Nobody searches "contract clause extraction API." The category doesn't exist in anyone's head yet.
Google Ads was dead on arrival. Meta became the only viable paid channel, because the job was creating demand instead of capturing demand that already existed.
The Same-Day Decision Rule
You don't need weeks of testing to figure out which channel to start with. You need fifteen minutes and a keyword tool.
Search your core product category and your top three competitor names inside a keyword planner. If you're seeing meaningful monthly search volume, hundreds or thousands of searches a month for terms that describe what you sell, start with Google. The demand already exists and you just need to be the answer someone finds.
If the volume comes back thin or nonexistent, your category is still being explained to buyers rather than searched for. Start with Meta, build awareness and retargeting pools, and revisit Google once your brand name itself starts generating searches.
This single check would have saved our warehouse SaaS founder his four months. "Warehouse inventory software India" pulls real, steady search volume. He should have started there instead of Instagram, full stop.
The same-day rule: check search volume first, category volume decides your first channel, not your gut feeling about where your audience "hangs out."
Budget Efficiency For B2B Specifically
B2B buying committees don't behave like consumers scrolling for sneakers. A single enterprise deal might involve three to six stakeholders, a procurement cycle, and weeks between first touch and signed contract.
Google Ads captures the person who's already three steps into that cycle, the one Googling "best CRM for logistics companies" at 11pm because their boss asked for options. Cost per click runs higher in competitive B2B categories, sometimes 200 to 800 rupees per click, but conversion rates on genuinely high-intent terms often justify it.
Meta's cost per click runs lower, often a fraction of Google's B2B rates. That efficiency is real, but the leads it produces skew colder. Someone who clicked because your carousel ad looked interesting hasn't necessarily decided they have a problem worth solving yet.
We've seen founders compare cost-per-click across the two channels and conclude Meta wins on efficiency. That math only holds if you ignore what happens after the click. A cheap lead that never converts costs more than an expensive one that closes.
A meta ads agency running B2B campaigns well doesn't chase cold cost per click, it uses Meta almost entirely for retargeting warm audiences who already visited your site, downloaded something, or watched a demo video. That's where Meta's efficiency actually pays off in B2B.
Why Most B2B Services Should Start With Google, Then Layer Meta
For most B2B services businesses, the order matters more than the budget split. Start with Google Ads to capture people who already know they need what you sell. Once you have traffic and a pixel collecting data, layer Meta retargeting on top to stay in front of the people who visited but didn't convert on the first pass.
Running it the other way round, cold Meta prospecting before you've proven search demand exists, is how founders burn budget on brand awareness they can't yet measure against revenue.
A facebook ads for agency setup that skips retargeting and goes straight to cold prospecting is usually solving the wrong problem first. Warm audiences convert at multiples of cold ones, and you can't build a warm audience without some other channel feeding it first.
Once Google is generating consistent traffic and a base of website visitors, Meta retargeting becomes almost free lift. You're not paying to introduce your brand from scratch, you're paying to remind someone who already looked once. That sequencing is the difference between paid ads that compound and paid ads that just spend.
If your category has zero search volume and Google genuinely isn't an option yet, this order flips, and Meta becomes your demand-creation engine by necessity, as it was for our legal-tech client. But that's the exception, not the default.
This overlaps with a related debate worth reading if you're also weighing search-network specialists: our breakdown of PPC agency vs Google Ads agency covers how a PPC generalist differs from someone who lives inside Google Ads all day. And if TikTok is on your shortlist too, we've written about TikTok ads for B2B lead generation and how it stacks up against the two channels covered here.
What This Looks Like In Practice
Say you run a 15-person consulting firm selling fractional CFO services. Search volume for "fractional CFO services" and related terms is decent, though nowhere near massive. Run a lean Google campaign on high-intent terms first. Build a Meta retargeting pool from website visitors and LinkedIn traffic at the same time.
Budget split might look like 70% Google, 30% Meta retargeting for the first ninety days. Rebalance later, once real cost-per-lead data comes in from both sides. Ignore what looked cheaper on a dashboard on day one.
We covered a similar sequencing question, comparing broader agency categories, in advertising agency vs performance marketing agency, which is worth a look if you're still deciding what kind of partner should run this for you at all. And if LinkedIn is part of your channel mix alongside these two, LinkedIn vs Facebook for B2B leads breaks down that specific tradeoff.
A Budget Split That Works For Most B2B Teams
If you have $3,000 a month to spend, start with roughly $2,000 on Google Search and $500 on Meta retargeting, and hold the last $500 as a test budget. Search captures the people already looking. Retargeting reminds them you exist while they compare options.
Review it every two weeks. If Search cost per lead climbs past what a closed deal can support, shift the test budget toward LinkedIn or a new keyword cluster before adding spend anywhere.
The mistake we see most often is splitting the budget evenly across every platform on day one. Thin spend on three channels teaches you nothing on any of them, so concentrate first and expand once one channel proves out.
One last practical point: agree on the conversion event before anyone spends a dollar. For B2B that should be a booked call or a qualified form fill, since clicks and cheap leads can flatter a report while the pipeline stays empty. Ask both agencies to report against that one event, weekly, in a dashboard you can open yourself.
If they resist that level of visibility, treat it as an early sign of how the relationship will feel in month four. Good performance agencies welcome it because the numbers usually make their case for them.
Takeaways
Check search volume for your category before choosing a channel, not your assumption about where buyers spend time.
Google Ads wins when real, existing search demand exists for what you sell.
Meta wins for awareness and retargeting, especially when your category is new or unfamiliar.
B2B buyers move slower and in groups, factor that into which channel earns budget first.
Retargeting on Meta after building Google traffic almost always outperforms cold Meta prospecting alone.
If you're not sure where your category lands on the search-volume test, that's a fifteen-minute conversation, not a month-long project. Our performance marketing team runs this check for free before recommending a channel split, and you can book a 30-minute call if you want a second opinion before your next spend commitment.
Curious how your category's search volume compares to competitors already running paid? Our comparison breakdown walks through what a proper channel audit looks like before you sign a retainer with anyone.