As of 13 August 2026, AI can find prospects using Companies House.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Do it yourself

   Second choice

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open Companies House and define the search criteria: target industry or SIC code, UK location, active status, company size and exclusions.
   2. Gather the relevant Companies House search results and record the company name, company number, status, SIC code and available filing details for each candidate.
   3. Paste those records into the prompt with a concise description of your product, your ideal customer and the evidence that makes a company a possible fit.
   4. Ask the model to separate confirmed Companies House facts from inferences and to rank the companies using only your stated criteria.
   5. Open each cited Companies House record and compare the drafted company number, status, SIC code, registered office area and filing details against the live record.
   6. Remove companies whose records are inactive, outside your criteria, duplicated or supported only by an unsupported inference.
   7. Add the checked companies to your CRM and research an appropriate business contact through lawful, current business sources before sending any outreach.

   Prompt

   Help me find prospect companies from Companies House for a UK sales campaign.
   
   Target customer:
   - Industry or SIC codes: [industry or SIC codes]
   - Geography: [UK region, town or postcode area]
   - Company size: [employee range or turnover range if available]
   - Company status: active companies only
   - Exclusions: [industries, company types or other exclusions]
   - What I sell: [product or service]
   - Signs that a company may fit: [specific criteria]
   
   Use only information I provide or information you can directly check in current Companies House records. Do not invent company details, employees, contact information, buying intent or business problems. Separate confirmed facts from your inference. Do not treat incorporation, accounts, charges or director information as proof that a company needs my product.
   
   Return a table with:
   1. Company name
   2. Companies House number
   3. Registered office area
   4. Company status
   5. SIC code and plain-English activity
   6. The Companies House record or filing checked
   7. Why it may fit my criteria
   8. What is still unknown
   9. A prospect priority of high, medium or low, with a short reason
   10. A safe next research step
   
   Do not provide personal mobile numbers or private email addresses. If you identify a director or officer, include them only where the information is publicly shown in the Companies House record and explain why that role may be relevant, without claiming they are the buyer. End with a short checklist of every row I must verify in Companies House before adding it to my CRM or contacting the company.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

3. Use a tool built for this

   The distant third