Find and update company information (Companies House) adds Alerts, and Data APIs coverage that Insider Monitor skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Friday, October 31, 2025
Tool Comparison
Find and update company information (Companies House) vs Insider Monitor comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
Insider Monitor includes Insider Data categories that Find and update company information (Companies House) omits.
In depth comparison
Find and update company information (Companies House)
find-and-update.company-information.service.gov.uk
The official UK companies register, providing free search and access to filing histories, document images, and company information. Users can follow companies for email alerts on new filings, and bulk data is available via monthly downloads. Certified copies and certificates are offered for a fee. Developers have access to REST and Streaming APIs with clear rate limits, making the service a reliable, real-time regulatory source.
Platforms
WebAPI
Pricing
Free
Quick highlights
- Free search and viewing of company information including registered details, officers, filing history, document images, mortgage charges, and insolvency data.
- Follow companies and receive email alerts when new filings are accepted, with direct links to the filing history.
- Order certified copies and certificates (fees apply, e.g. £15 standard / £50 express).
- Bulk data available as monthly CSV snapshots of the entire UK companies register.
- Public REST API providing structured access to company data (companies, officers, persons of significant control, etc.), authenticated via API key; some flows support OAuth2. Rate limit of 600 requests per 5 minutes.
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Insider Monitor
insider-monitor.com
Free, U.S.-focused insider‑trading tracker centered on SEC Forms 3/4/5. Provides near‑real‑time (‘minutes or seconds’ after filing) feeds of insider purchases/sales, weekly/monthly Top‑10 lists, and “officer cluster buys” over the past two weeks. Includes company and trader pages with CIK cross‑references and direct links to the SEC for each transaction. No login, alerts, or API are advertised; this is a lightweight, public reference site.
Platforms
Web
Pricing
Free
Quick highlights
- Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day.
- Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks.
- Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases.
- Industry lens: aggregates Form 4 filing counts by high‑level industry divisions since 2020.
- Company & trader dossiers: symbol/issuer pages and insider pages with year/month summaries and per‑trade details, including CIK references and SEC source links.
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Where they differ
Find and update company information (Companies House)
Distinct strengths include:
- Free search and viewing of company information including registered details, officers, filing history, document images, mortgage charges, and insolvency data.
- Follow companies and receive email alerts when new filings are accepted, with direct links to the filing history.
- Order certified copies and certificates (fees apply, e.g. £15 standard / £50 express).
- Bulk data available as monthly CSV snapshots of the entire UK companies register.
Insider Monitor
Distinct strengths include:
- Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day.
- Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks.
- Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases.
- Industry lens: aggregates Form 4 filing counts by high‑level industry divisions since 2020.
Feature-by-feature breakdown
| Attribute | Find and update company information (Companies House) | Insider Monitor |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Regulatory Filings Monitoring Unique: Alerts, Data APIs | Shared: Regulatory Filings Monitoring Unique: Insider Data |
Asset types Supported asset classes and universes | Other | Stocks, Closed-End Funds |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web, API | Web |
Pricing High-level pricing models | Free | Free |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Not yet | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Frequently Asked Questions
Which workflows do Find and update company information (Companies House) and Insider Monitor both support?
Both platforms cover Regulatory Filings Monitoring workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do Find and update company information (Companies House) and Insider Monitor require subscriptions?
Both Find and update company information (Companies House) and Insider Monitor keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access Find and update company information (Companies House) and Insider Monitor?
Both Find and update company information (Companies House) and Insider Monitor prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.
What unique strengths set the two platforms apart?
Find and update company information (Companies House) differentiates itself with Free search and viewing of company information including registered details, officers, filing history, document images, mortgage charges, and insolvency data., Follow companies and receive email alerts when new filings are accepted, with direct links to the filing history., and Order certified copies and certificates (fees apply, e.g. £15 standard / £50 express)., whereas Insider Monitor stands out for Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day., Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks., and Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases..
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.