Build a B2B lead list with your AI agent
Ask your agent for companies by what they do, where they are and their size. A real run: the prompt, the call, the list it returned and the rows to check.
Find SEO agencies in London, 11 to 50 staff
At a glance
| Job | A first list of target companies |
|---|---|
| Tool | leads_search_companies |
| Credits | 3 for 25 rows in this run |
| Fields | Name, domain, headcount, location, founded, revenue range |
| Run on | SEO agencies in London with 11 to 50 staff, 26 October 2026 |
The prompt
We asked our own agent, Claude Code connected to Manifold, on 26 October 2026:
Build me a list of SEO agencies in London with 11 to 50 staff. For each one give me the
company name, website, headcount, location and the year it was founded. Start with 25.The call
| Step | Tool | Input | Credits |
|---|---|---|---|
| 1 | leads_search_companies | keywords "SEO agency", "search engine optimization"; location London; 11 to 50 staff; limit 25 | 3 |
The search had 54 matches in all. The agent asked for the first 25, the size of a first look, and the call cost 3 credits.
What came back
12 of the 25 rows, in the order the tool returned them:
| Company | Website | Staff | Location | Founded |
|---|---|---|---|---|
| KAU Media Group | kaumediagroup.com | 27 | London | 2015 |
| Absolute Digital Media | absolute.digital | 30 | London | 2008 |
| Global Marketing Firm | globalmarketingfirm.co.uk | 23 | London | |
| ClickDo | clickdo.co.uk | 27 | London | 2013 |
| CopyHouse | copyhouse.io | 32 | London | 2019 |
| X9 Media | x9media.co.uk | 17 | Reading, London | 2022 |
| Re:signal | resignal.com | 20 | London | 2012 |
| Bird Marketing | 39 | London | 2010 | |
| Flitzen Technologies UK | flitzen.co.uk | 17 | London | 2015 |
| Digital Optimizer | digitaloptimizer.co.uk | 17 | London | 2019 |
| SearchPilot | 29 | London | ||
| Direct Traffic Media | directtrafficmedia.com | 13 | London | 2004 |
Each row also carried the company's LinkedIn page, industry, keywords and an estimated revenue range.
What to check before you use it
The agent flagged the rows that did not match the ask:
- Two companies are in London, Ontario. Foundery and Venre matched on the city name.
- Four headcount bands differ from the filter. Three companies list a band of 51 to 200 staff and one of 2 to 10, although each profile's own staff count, 19 to 44, is inside the range asked for.
- Not every company is an agency. SearchPilot sells SEO testing software, and several rows are web development shops that list SEO among their services.
Dropping the two Canadian rows leaves 23. Whether to keep the four band mismatches and the companies that are not agencies is your call. A list from any data source needs this pass; here it happens in the same chat.
The next steps
From the clean list, the agent can find the people who buy: leads_search_people by title at those companies, then leads_get_email for a verified work email for each person you choose. Every call states its price before it runs, so ask for the cost first if the list is long.
