Google and LinkedIn are not competing for the same job. Google captures demand that already exists. LinkedIn creates demand among people who are not looking yet. The question is almost never which one, it is which one first, and that depends on whether anyone is searching for what you do.
Teams waste a lot of money treating this as a loyalty test. It is a sequencing decision. Get the order right for your stage and category, and each channel makes the other work better. Here is how to decide.
Google captures demand that already exists
Search is intent. Someone types the problem, the category, or a competitor's name, and you show up at the moment they are looking. That is why Google usually produces the lowest cost per lead in B2B: you are catching people who have already decided to solve something. The catch is that you are limited by how many people search. If few people look for what you do, there is a ceiling on how much pipeline search can produce, no matter the budget. The full build for this is in Google Ads for B2B SaaS.
LinkedIn creates demand that is not there yet
LinkedIn is audience, not intent. You reach people by job title, company, and seniority whether or not they are searching. That makes it the tool for categories where demand has to be built, and for reaching buyers who will never type your category into Google because they do not know it exists. It costs more per lead, because you are interrupting rather than catching, but it scales past the ceiling of search volume. The cost ranges and what drives them are in LinkedIn Ads benchmarks.
Which one first
Two questions decide it. Does meaningful search demand exist for your category, and is your deal size large enough to absorb LinkedIn's higher cost per lead?
If people search for what you do, start with Google. It is cheaper, faster to prove, and it tells you quickly whether paid can work at all on your economics. If there is little search volume, because the category is new or you are creating it, start with LinkedIn, because there is simply not enough intent to capture yet. And if your deal size is small and self-serve, be cautious with LinkedIn regardless, because its costs are hard to justify without a large contract value behind them.
The usual answer for B2B SaaS
Most B2B SaaS companies with real search demand start on Google, prove the economics on captured intent, then add LinkedIn to generate demand beyond what search can supply. Companies in brand-new categories flip it, leading with LinkedIn to build awareness and using a lean branded search campaign to catch the demand it creates. Either way, the end state is both channels running together, not one winning.
How they work together
This is the part that gets missed. When LinkedIn builds awareness, some of those people later search your name or category, and Google captures them as branded and non-branded search. If you judge each channel in isolation, LinkedIn looks expensive and Google's branded campaign looks like a genius, when really the first created the demand the second harvested. Measure them as one system. Watch branded search volume rise as LinkedIn spend ramps. Judge the pair on blended pipeline and payback, which is the logic behind running every channel as one P&L in the operator's guide.
Budgets
There is no fixed split. Fund the channel that fits your demand first, give it enough budget and time to learn, and only add the second once the first is clean and measured. Do not spread a small budget thinly across both and starve each of signal. How much to put behind either is a function of payback, not a percentage rule, which we cover in the budgeting piece.
Common questions
Should I start with Google Ads or LinkedIn Ads for B2B SaaS?
If people already search for your category, start with Google, because capturing existing demand is cheaper and faster to prove. If there is little search volume for what you do, start with LinkedIn to create demand among the right job titles. Most B2B SaaS companies end up running both, with Google catching intent and LinkedIn generating it.
What is the difference between Google Ads and LinkedIn Ads for B2B?
Google is intent-based: you reach people at the moment they search for a problem or category, so it captures demand that already exists. LinkedIn is audience-based: you reach people by job title, company, and seniority whether or not they are looking, so it creates demand. Google is limited by search volume; LinkedIn is limited by how well your offer and creative earn attention.
Is LinkedIn or Google cheaper for B2B leads?
Google usually produces a lower cost per lead because the traffic is already looking for a solution. LinkedIn costs more per lead because you are interrupting people who are not searching yet. Cheaper per lead is not the same as cheaper per customer, so compare them on cost per qualified opportunity and payback, not on the cost per lead alone.
Can you run Google and LinkedIn Ads at the same time?
Yes, and for most B2B SaaS companies the two work better together than apart. LinkedIn creates awareness and demand, which shows up later as branded and non-branded searches that Google captures. Run them together, measure them as one system rather than in isolation, and expect each to make the other look better.