What is this?
Exclude Company Size is an Opteo Improvement for LinkedIn Ads. When a specific company size band is consistently generating poor results compared to your campaign group average, Opteo recommends excluding it — stopping your ads from showing to people at companies in that size range and redirecting your budget to better-performing audiences.
Why exclude company sizes?
LinkedIn lets you target people by the size of their employer — from sole traders and small businesses through to enterprise organisations with thousands of employees. For B2B advertisers, company size is often a strong proxy for fit: a product priced for enterprise may get no traction at SMBs, and a tool built for startups may see poor conversion rates from large corporates.
Broad targeting across company sizes can mean a significant share of your budget reaches prospects who will never be a good fit, regardless of their job title or seniority. Identifying and removing the size bands that consistently underperform is one of the most direct ways to improve targeting precision on LinkedIn.
Opteo does this analysis automatically, surfacing the company size bands worth excluding so you can act in one click.
How does this Improvement work?
Opteo analyses company size performance across your LinkedIn campaigns using up to 365 days of data — the longest lookback window we use across any platform, which reflects LinkedIn's lower traffic volumes compared to search platforms.
We flag a company size band for exclusion when:
Its CPA is more than 2x higher than your campaign group average
Or its ROAS is less than half your campaign group average
It has enough impressions for the data to be statistically reliable (minimum 30, scaling higher for accounts with more conversions — LinkedIn campaigns require a higher impressions threshold than other platforms before Opteo will act)
When those conditions are met, Opteo shows you a comparison table of company size performance against your campaign group average, and lets you exclude the underperforming band with a single click. The exclusion is applied at the campaign level via the LinkedIn Ads API.
If a company size band is still relevant to your strategy — for example, if you're deliberately building brand awareness across all company sizes — you can dismiss the Improvement.
Technical notes
Why this recommendation appeared:
Company size band CPA is more than 2x your campaign group average, or ROAS is less than half your campaign group average
The company size band has sufficient impressions to meet LinkedIn's higher data confidence threshold
The campaign is active and the company size segment is enabled
Why you might not see this recommendation:
All company size bands in your campaign perform within acceptable ranges
Insufficient impressions data — LinkedIn campaigns often need more data than other platforms before Opteo can make a confident recommendation
Only one company size band is active in the campaign (Opteo won't recommend excluding your only audience segment)
How the analysis works:
Looks back up to 365 days of LinkedIn campaign data
Compares company size band performance against the campaign group average (cost, conversions, and conversion value)
Applies a higher minimum impressions bar for LinkedIn than for Google Ads or Microsoft Ads, reflecting LinkedIn's lower traffic volumes
Exclusions are applied at campaign level