Category
Companies House
12 posts on companies house.
Every UK limited company files its accounts, confirmation statements and officers with Companies House, and all of it is public. These guides explain how the register works and how to turn it into a source of clients: reading filings, spotting deadlines, and finding the companies that need help before they ask. Leadistry keeps a live, enriched copy of the register, so each guide ends with something you can actually run.
19 AUG 2026 · 8 MIN
Which SIC codes actually describe your customers
The code you need is the one your customer filed, not the one that describes what you sell them. How to work backwards from five real customers, why one business spans several codes, and what a code cannot tell you.
Read →12 AUG 2026 · 5 MIN
What is the US equivalent of Companies House?
There is no single one. US incorporation happens state by state, each with its own registry, and no unified free national register exists. What that means in practice, and why the UK register is unusually open.
Read →12 AUG 2026 · 6 MIN
A business is registered at my address. What can I do?
It happens more than you would think: a stranger's company on the register with your home as its registered office. Why it happens, how to check, and the official Companies House route to get it removed.
Read →11 AUG 2026 · 8 MIN
The Companies House API, explained: auth, rate limits and the gotchas
The free official API to the UK register: how the authentication actually works, what the 600-per-5-minutes rate limit means at register scale, which endpoints matter, and the gotchas we hit building on it for years.
Read →29 JUL 2026 · 6 MIN
The confirmation-statement window: timing outreach to filing deadlines
Every UK company must confirm its details with Companies House every 12 months, with 14 days to file once the review period ends. That published, predictable window is one of the best timing signals in UK B2B sales.
Read →29 JUL 2026 · 6 MIN
Why filing-traced data beats scraped profiles for UK sales
Data traced to a statutory filing has a named source, a date, and a legal duty of accuracy behind it. Scraped profile data has none of those. For UK sales, that difference decides bounce rates, compliance and trust.
Read →29 JUL 2026 · 6 MIN
First 90 days: selling to companies the week they incorporate
A company incorporated this week has no incumbent suppliers and a to-do list full of first-time purchases. The public record announces it the same day. Here is how to be in the inbox while everything is still undecided.
Read →8 JUL 2026 · 7 MIN
How to Email Newly Incorporated UK Companies (Legally and Automatically)
New companies buy fast: accountancy, banking, websites, insurance. Here's how to find newly incorporated UK companies, contact them within PECR rules, and automate the whole journey.
Read →8 MAY 2026 · 7 MIN
UK SIC Code Lookup: How to Find the Right Codes for B2B Prospecting
Every UK limited company self-declares 1–5 SIC codes when it incorporates. Used right, they're the single most powerful filter for B2B prospecting. Here's how to actually pick them.
Read →29 APR 2026 · 6 MIN
Companies House API Alternative, When the Official API Isn't Enough for Lead Generation
The official Companies House API is rate-limited, doesn't return contact data, and isn't built for prospecting at all. Here's what to use instead, and when DIY beats a tool.
Read →22 APR 2026 · 5 MIN
How to Find Recently Incorporated UK Companies by SIC Code
Companies House registers thousands of new UK businesses every week. Here is the practical playbook for finding them by industry, region and incorporation date.
Read →15 APR 2026 · 6 MIN
Companies House Deadlines 2026: When Accounts & Confirmation Statements Are Due (and What Late Costs You)
Every UK limited company has annual accounts and confirmation statement deadlines. Here is what they are, how the dates are calculated, and how lead generators turn them into qualified opportunities.
Read →Filter the live Companies House record by industry, age and place. Every lead arrives with a verified website and email, and your first 25 are free.