Key takeaways
- In B2B, the account list has more influence on LinkedIn Ads performance than the creative itself.
- It is built from the ideal customer profile and sorted into tiers according to fit and purchase intent.
- LinkedIn accepts lists of up to 300,000 companies and requires a minimum audience of 300 members to serve ads.
- A list that is not kept up to date loses effectiveness within a few months, so it should be reviewed monthly with fresh signals.
Why target LinkedIn Ads with account lists?
Account lists concentrate spend on the companies that can buy. LinkedIn lets you target by job title, seniority, industry or company size with great precision, but applied to an entire market this includes thousands of companies that will never become customers. With high costs per click, every impression outside the target market reduces the return.
The usual order is reversed. First you decide which companies to target, and then which people within them. This is the foundation of Account Based Marketing applied to advertising, and it allows ads to be coordinated with the sales team's work on the same accounts.
When it is not worth it
If the market contains tens of thousands of potential companies and the average deal size is low, demographic targeting usually works out cheaper. The account-based approach pays off when the number of buyers is limited and each sale justifies a high acquisition cost.
How are account lists built?
Building a list follows five steps: define the ideal customer profile, extract the total market, enrich each account, add buying signals and sort the accounts into tiers. The order matters. If accounts are tiered before they are enriched, those with incomplete data end up in the wrong tier and receive a message that does not fit them.
1. Ideal customer profile
It is defined from the best current customers and from won and lost opportunities. The relevant factors are industry, size, location, technology and business model. Any criterion that explains why some companies buy and others do not is valid.
One exercise we use in workshops with clients is to compare their ten best accounts with ten lost opportunities. The differences that emerge from that comparison usually make better criteria than the ones the team had in mind.
2. Total market
Using those criteria, the universe of companies is extracted from commercial databases, the company's own CRM and public sources. In Spain, business registers and company databases make it possible to filter by CNAE code (Spain's industry classification), turnover and province. At this stage, coverage matters more than precision.
3. Enrichment
Each account is completed with its website domain, the URL of its LinkedIn company page, its headcount and the data needed to classify it. Including the LinkedIn URL is one of the things that most improves the match rate when the list is uploaded. Companies without their own page, or with a separate page for each subsidiary, may fail to match or end up split.
4. Buying signals
The most useful signals are hiring in related areas, funding rounds, technology changes and expansion into new markets. Website visits, engagement with content and referrals that come through B2B partner programmes also count. Together they indicate which accounts to activate at any given moment.
5. Tiers
Accounts are grouped by fit and intent so that each group can be assigned its own level of spend and its own messages.
| Tier | Accounts | Approach | Common formats |
|---|---|---|---|
| Tier 1 | 25–50 | Account-specific messages, coordinated with sales | Conversation ads and tailored content |
| Tier 2 | 100–300 | Messages by industry or use case | Document ads, video and case studies |
| Tier 3 | 1,000 or more | Awareness and demand capture | Single image ads and educational content |
The ranges in the table are indicative. Tier 1 must fit within the sales team's real capacity for follow-up. Tier 3, on the other hand, needs volume to clear the minimum audience size once job title filters are applied. The messages for each tier are prepared with the content and brand team.
How do you upload account lists to LinkedIn?
Campaign Manager offers two routes. The first is to upload a CSV file from the audiences section, using the company template that LinkedIn provides. The second is to sync the list from the CRM or from the email automation platform through native integrations, which keep it up to date without manual uploads.
Preparing the file
The template accepts the company name, website domain, LinkedIn page URL, industry and country, among other fields. The more fields are completed, the better the match. Before uploading, it is worth normalising names, removing duplicates and reviewing subsidiaries.
We recommend naming each list with the tier, segment and upload date, for example T2-manufacturing-2026-09. With several versions active in the account, that name prevents a campaign from still pointing to an old list.
Combining the list with other filters
- Combine the list with job title or job function filters so that the ads do not reach every employee at each company.
- Existing customers and accounts with open opportunities should be excluded from acquisition campaigns.
- Contact lists also make it possible to target specific people at tier 1 accounts.
- Tier 1 audiences often fall below the 300-member minimum, so several similar accounts are grouped into the same campaign.
A company list contains no personal data. Contact lists do, and under the GDPR they require a legal basis and a record of the source and date of each piece of data.
How do you keep account lists up to date?
They are kept up to date through a monthly review and automatic syncing with the CRM. Companies change size, hire, merge or become customers, and buying signals expire within weeks. A list that is not updated keeps spending budget on accounts that no longer fit or that sales has already ruled out.
| Frequency | Task | Who does it |
|---|---|---|
| Ongoing | Excluding customers and open opportunities | CRM sync |
| Monthly | Moving accounts between tiers based on new signals | Marketing and sales |
| Monthly | Adding new companies that match the profile and removing those that have been ruled out | Marketing |
| Quarterly | Reviewing the ideal customer profile against won and lost opportunities | Sales leadership |
Syncing with the CRM requires each account to have the same identifier across every tool. Without that shared key, exclusions fail and customers keep seeing acquisition ads.
Mistakes we see in account-based campaigns
The most common is uploading a list without job title filters. The campaign reaches every employee at each company, from interns to senior management, and the cost is spread across people who play no part in the purchase.
Another recurring mistake is mixing tiers in the same campaign. Tier 1 and tier 3 accounts then compete for the same budget. The platform allocates it wherever it gets the most engagement, which is almost never the priority accounts.
It is also common not to exclude existing customers, which uses up spend on companies that already buy. On small lists, enabling audience expansion undoes the targeting, because LinkedIn adds similar profiles that are not on the list.
Finally, few advertisers check the match rate after uploading a list. When it falls well short of the number of companies uploaded, the problem usually lies in the data. Misspelt domains, subsidiaries without their own page and trading names that differ from the one registered on LinkedIn account for most cases.
How do you measure the results of an account-based campaign?
In account-based campaigns, cost per click is a secondary metric. What matters is how many accounts on the list are reached, which of them engage and how many move forward in the sales process. Seeing this requires cross-referencing LinkedIn data with the CRM, account by account, over a window of several months.
| Metric | What it measures | Where it comes from |
|---|---|---|
| Coverage | Percentage of accounts on the list that are reached | Campaign Manager company report |
| Engagement per account | Impressions, clicks and website visits for each company | Campaign Manager and web analytics |
| Accounts with an opportunity | Companies on the list that enter a sales process | CRM |
| Influenced pipeline | Value of opportunities from accounts exposed to the campaigns | CRM with campaign data |
Influenced pipeline does not, on its own, prove that the campaign caused the sale. To get closer to that answer, we compare exposed accounts with a control group from the same list that receives no ads. Connecting LinkedIn, the website and the CRM to measure this is part of GTM engineering, and follows the same logic as offline conversions in Google Ads.
In LinkedIn Ads, the list determines the result before the creative does. A good ad cannot make up for the wrong audience.
Juan Berges, CEO of The Baller Company
Where to start
With a list of a few hundred well-enriched accounts, you can already launch a first campaign without waiting to map the full market. We recommend starting with tier 2, which has enough volume to serve ads and lends itself to industry-level messaging that is easy to prepare.
Tier 1 is best held back until sales has validated each account. Before uploading anything, connect the CRM so that customers are excluded. If the company also advertises on Google and Meta, the same accounts can be activated through campaign management across several platforms.
Frequently asked questions
How many companies should a LinkedIn Ads list include?
It depends on the market, but the audience must exceed 300 members once job title filters are applied. In practice, industry-focused campaigns work with a few hundred accounts and awareness campaigns with several thousand. LinkedIn accepts up to 300,000 companies per list.
What match rate can you expect when uploading a list?
It varies with the quality of the data. Lists that include the website domain and the LinkedIn page URL match far better than those containing only the company name. If the match rate is low, review subsidiaries, trading names and domains before expanding the list.
Can the same accounts be used in Google Ads and Meta?
Yes, with some caveats. Google Ads and Meta do not target by company in the way LinkedIn does, so the list is translated into contact lists for those accounts, with valid consent under the GDPR. Tiers and messages can remain the same across all three platforms.
How often should account lists be updated?
Exclusions of customers and open opportunities should be synced automatically and continuously. Reclassifying accounts by tier is best done every month, and the ideal customer profile should be reviewed every quarter using data from won and lost opportunities.
