LinkedIn Boolean search for prospecting: operators, examples and mistakes

LinkedIn search supports five Boolean tools: quotation marks for exact phrases, parentheses for grouping, and the operators NOT, AND and OR, which must be typed in capitals. LinkedIn reads them in that order: quotes, parentheses, NOT, AND, then OR. It does not support wildcards such as an asterisk, and it does not officially support + and -. Use OR for title variants, NOT to remove the wrong people, and quotes for exact titles.

A plain keyword search on LinkedIn returns everyone who mentions a word anywhere on their profile. That is how a search for "head of sales" ends up full of recruiters who hire heads of sales and consultants who coach them. Boolean search is how you tell LinkedIn what you actually mean.

Which Boolean operators does LinkedIn support?

From LinkedIn's help page on Boolean search, read on 24 October 2026:

The operators must be in capital letters. LinkedIn says it does not support braces, brackets, angle brackets or wildcards such as an asterisk, and that + and - are not officially supported, so use AND and NOT instead.

In what order does LinkedIn read them?

Quotes first, then parentheses, then NOT, then AND, then OR. That order matters when you mix operators. A search like:

CFO OR "finance director" AND logistics

is read with AND before OR, so it returns every CFO, plus finance directors who mention logistics. If you meant finance leaders in logistics, add parentheses:

(CFO OR "finance director") AND logistics

When in doubt, use parentheses. They make the search read the way you meant it.

What does a good prospecting search look like?

Build it in three parts: who, where, and who not.

1. Who: the title variants, joined with OR and wrapped in parentheses.
2. Where: the industry or topic words, joined with AND.
3. Who not: the people who match the words but are not buyers, removed with NOT.

Worked examples:

• Operations leaders in logistics: ("head of operations" OR "operations director" OR COO) AND (logistics OR freight) NOT (recruiter OR consultant)
• Finance leaders at software companies: (CFO OR "finance director" OR "head of finance") AND (SaaS OR software) NOT (interim OR fractional)
• People leaders at growing companies: ("head of people" OR "HR director" OR CPO) AND hiring NOT recruiter

Because LinkedIn has no wildcard, list the spellings you need: "operations director" and "director of operations" are different phrases to a search.

What are the common mistakes?

• Lower case operators. "and" and "or" in lower case are treated as words, not operators.
• Missing parentheses. OR without parentheses changes the meaning of the whole search, as in the example above.
• Too many NOTs. Each NOT removes people you did not look at. Start with one or two and check what disappears.
• Smart quotes. Curly quotation marks pasted from a document may not work as exact phrase quotes. Type straight quotes.
• Searching words instead of roles. "sales" in a keyword search matches anyone who mentions sales. Use the title filter for titles where you can.

Where should the Boolean string go?

LinkedIn's help page describes Boolean search in the main search bar. Most people combine a Boolean keyword string with LinkedIn's own filters, such as location, current company or industry. Filters are cleaner than keywords for anything LinkedIn already structures.

If you use Sales Navigator, its filters go further. Sales Navigator filters that find buyers covers which ones are worth setting. If you do not, read how to prospect on LinkedIn without Sales Navigator.

Is a search list enough?

A search finds people who match a description. It does not tell you who is interested now. In our own outbound at Sellinger, intent signal lists, built from people who had liked or commented on posts about the topic, replied at 55% in October 2025 and booked four times as often as untagged lists. A good Boolean search is a solid base. Add a signal on top where you can, such as a recent job change or engagement with a competitor's posts.

How does Sellinger use a LinkedIn search?

You can import the results of a LinkedIn or Sales Navigator search into a campaign, and the agent researches each person and writes the first message. The LinkedIn search import guide shows the steps. Sellinger also has intent signals on LinkedIn with 26 ready made templates in 8 categories, so a search list and a signal list can feed the same campaign.

Ready to adapt search strings by buyer

These follow LinkedIn's supported syntax. Change the words to fit your market and check the first page of results before you save a list.

How do you test a search before you use it?

1. Read the first twenty results. If more than a few are not buyers, add a NOT for the pattern you see, such as recruiter, consultant or student.
2. Remove one OR at a time. If the results barely change, the variant was not doing anything and can go.
3. Check the count. A search with tens of thousands of results is usually too broad to write to well. Narrow it with a filter, such as location or company size.
4. Save the string. Keep it in a document with the date, so you can reuse it and see what changed when results drift.

A search that passes these checks is a list you can write to with a specific reason. A search that fails them is a list of people who share a word.

A checklist

• [ ] Operators are in capital letters.
• [ ] Title variants are grouped in parentheses with OR.
• [ ] NOT removes the obvious non buyers, and I checked what it removed.
• [ ] Exact titles are in straight quotation marks.
• [ ] I used LinkedIn's filters for location, company and industry.
• [ ] Where I can, a signal sits on top of the search.