Google Ads vs LinkedIn Ads for B2B SaaS: which channel fits which job
- Google Ads captures demand that already exists. LinkedIn Ads reaches a chosen audience whether or not it is searching. They do different jobs.
- Deal size decides the mix. Published targets put products under $15K a year on search plus retargeting, and add LinkedIn from $15K upward.
- Both waste about a third of spend in B2B SaaS: 34.0% on Google Ads and 32.0% on LinkedIn Ads. Google's waste is a measurement problem, LinkedIn's a targeting problem.
- Judge both on cost per SQL. Click-through rate predicts pipeline poorly on Google Search (0.18) and hardly at all on LinkedIn (0.04).
Neither is better in general. Google Ads suits B2B SaaS companies whose buyers already search for the category, because it reaches people at the moment they are looking. LinkedIn Ads suits companies that sell larger contracts to a known set of roles and companies, because it can target them by job title, seniority and employer. The published campaign mix for contracts above about $15K a year includes both.
The figures on this page come from four 2026 publications by GrowthSpree, listed under Sources. Each is named where it is used.
Is Google Ads or LinkedIn Ads better for B2B SaaS?
It depends on whether the buyer is searching and how large the contract is. The table sets out the main differences.
| Google Ads (Search) | LinkedIn Ads | |
|---|---|---|
| How it targets | By what the person types | By who the person is: job title, function, seniority, company |
| Best at | Capturing demand that already exists | Reaching a defined audience that is not yet searching |
| Cost per click | $8.50 to $14.00 median, non-brand search | $8 to $25 depending on vertical |
| Cost per SQL | $800 to $2,500 median | $800 to $8,000 depending on contract value |
| Average waste rate | 34.0% (104 accounts) | 32.0% (56 accounts) |
| Main cause of waste | Missing measurement | Loose audience targeting |
| CTR as a pipeline signal | Weak (0.18) | Almost none (0.04) |
| Usual limit | Only as large as search demand | Cost per click and audience size |
The cost per click and cost per SQL rows come from two different publications that use different methods, so read them as rough ranges, not a like-for-like test.
How do the two channels differ in what they do?
Google Ads responds to demand. LinkedIn Ads goes out to find an audience.
On Google Search, an ad appears when someone types a query. A search for a software category is a strong sign of buying interest. The limit is volume: if few people search for the category, the channel cannot grow past that.
On LinkedIn, an ad appears in the feed of people chosen by job title, function, seniority, company size, industry or a list of named companies. Nobody asked to see it. That makes LinkedIn useful for new categories nobody searches for yet, and for account-based marketing where the target is a short list of companies.
How do costs compare?
Clicks cost about the same or more on LinkedIn, and the range is wider.
SaaS Google Ads Benchmarks 2026 gives a median non-brand search click of $8.50 to $14.00 and a median cost per sales-qualified lead (SQL) of $800 to $2,500. By vertical, the click runs from $7.50 for developer tools to $18.00 for cybersecurity. Full tables are in B2B SaaS Google Ads benchmarks 2026.
The State of Wasted LinkedIn Ads Spend in B2B SaaS gives a LinkedIn click of $8 to $25 depending on vertical, and a cost per SQL of $800 to $8,000 depending on contract value.
The upper end matters. An $8,000 SQL only works for a product with a large contract. That is the main reason deal size decides how much LinkedIn belongs in the mix.
Which channel fits which deal size?
Search carries small contracts. LinkedIn joins as contract value rises. The benchmarks publication gives a typical campaign mix by annual contract value (ACV).
| ACV range | Target cost per SQL | Typical campaign mix |
|---|---|---|
| $5K to $15K | $400 to $1,000 | High-intent search plus retargeting |
| $15K to $50K | $1,000 to $3,000 | Search plus LinkedIn plus account-based marketing |
| $50K to $150K | $3,000 to $8,000 | Multi-channel account-based marketing plus search |
| $150K and up | $8,000 to $20,000 | Full account-based marketing, branded search and display |
Below $15K, the target is $400 to $1,000 per SQL, which only the bottom of the LinkedIn range meets. From $15K upward, the target cost per SQL is high enough to pay for reaching a named buyer.
Where does each channel waste money?
In different places, at a similar rate. Two 2026 audits put average waste at 34.0% of Google Ads spend across 104 accounts and 32.0% of LinkedIn Ads spend across 56 accounts.
| Google Ads | LinkedIn Ads | |
|---|---|---|
| Largest cause | Broad match without negative keywords (31% of waste) | Job functions that will not buy (30%) |
| Second cause | Performance Max without offline conversions (25%) | Seniority mislabeling (22%) |
| Nature of the problem | The account cannot see which clicks become pipeline | The ads reach people who cannot buy |
| First fix | Negative keywords and CRM conversion data | Audience audit and exclusions |
The LinkedIn report sums it up: "Google waste is largely a measurement problem, while LinkedIn waste is a targeting problem."
The fixes are covered in how to reduce wasted ad spend in B2B SaaS Google Ads and how to cut wasted LinkedIn Ads spend. The combined data is in how much ad spend B2B SaaS companies waste.
How should results be compared across the two?
On cost per SQL, not on clicks or cost per lead. The Paid Ads Pipeline Disconnect in B2B SaaS measured how well click-through rate (CTR) predicted pipeline on each format. The correlation was 0.18 on Google Search and 0.04 on LinkedIn sponsored content, where 1 would be a perfect match.
Two practical points follow.
- Do not compare CTR across the channels. A search ad and a feed ad earn clicks for different reasons. A higher CTR on one says nothing about which produces more pipeline.
- Use a window as long as the sales cycle. B2B leads take weeks or months to qualify. Either channel looks worse than it is when judged on a few weeks of data.
More on this in does CTR predict pipeline in B2B SaaS ads.
Which should a B2B SaaS company start with?
Start where the buyer already is. Three questions settle it for most companies.
- Do buyers search for the category? If yes, start with Google Search. It reaches people who are already looking.
- Is the contract above about $15K a year? If yes, LinkedIn can pay for itself. If no, keep LinkedIn to retargeting or leave it out.
- Is the target a short list of companies? If yes, LinkedIn is the natural lead channel, because it can target those companies by name.
A company with search demand and a mid-sized contract usually runs search first, then adds LinkedIn once conversion tracking reaches the CRM. Adding a second channel before the first one is measured doubles the spend that cannot be judged.
FAQ
Is LinkedIn Ads more expensive than Google Ads?
Per click, often yes. Published 2026 figures give $8 to $25 for a LinkedIn click and a $8.50 to $14.00 median for non-brand Google search in B2B SaaS. Per SQL the gap depends on contract value and on how tightly the LinkedIn audience is controlled.
Can a B2B SaaS startup run only one of the two?
Yes. A startup with a small budget is usually better served by one channel run well than two run thinly. Pick Google Search if buyers search for the category. Pick LinkedIn if the product is new to the market and sold to a narrow set of roles.
Does LinkedIn Ads work for low-priced SaaS?
Rarely as a main channel. With products under about $15K a year, the published target cost per SQL is $400 to $1,000, and LinkedIn often cannot reach that. Retargeting website visitors on LinkedIn is the exception, because the audience is small and already interested.
Should the same landing page be used for both channels?
Usually not. A search visitor has stated a need and expects a page that answers it. A LinkedIn visitor was interrupted and often needs more context before a demo request. Separate pages also make it easier to see which channel converts.
How should budget be split between Google Ads and LinkedIn Ads?
There is no fixed ratio. Fund search up to the point where extra spend stops finding new qualified searches, then put the rest into LinkedIn. Recheck the split each quarter on cost per SQL for each channel, not on lead volume.
Conclusion
Google Ads and LinkedIn Ads answer different questions. Google Ads asks who is looking for this right now. LinkedIn Ads asks who should hear about this. Small contracts with search demand belong on Google first. Larger contracts sold to named roles justify LinkedIn. Both waste about a third of spend in the average audited account, and both should be judged on cost per SQL.
Sources
- SaaS Google Ads Benchmarks 2026: CPC, CPL, CTR, and Conversion Rates by Vertical, ACV, and Sales Cycle Length. GrowthSpree, April 2026.
- The 2026 B2B SaaS Google Ads Waste Report: An Audit of 104 Accounts and $78.0M in Spend. GrowthSpree, June 2026.
- The State of Wasted LinkedIn Ads Spend in B2B SaaS: An Audit of 56 Accounts and $9.4M in Spend. GrowthSpree, June 2026.
- The Paid Ads Pipeline Disconnect in B2B SaaS. GrowthSpree, June 2026.
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