Resources – OpenCorporates

Mapping innovation in energy startups: A data fusion journey with OpenCorporates and Semantic Scholar

Today’s energy sector is evolving fast. With thousands of new companies emerging each year, keeping track of innovative startups is both a challenge and an opportunity. So how can investors, policymakers, and researchers quickly identify the most promising ventures, especially those with deep scientific expertise? In this post, I’ll walk through the methodology, share some key findings, and explain how this approach opens new doors for data-driven innovation analysis.

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January 12, 2026

Reading List / Resources

15 years of corporate transparency: The ultimate resource list

Fifteen years ago, Chris Taggart founded OpenCorporates with a simple mission: to make legal-entity data transparent and reliable. Today, that mission is more critical than ever. We've built the foundation for the first step of any transaction; verifying a legitimate business from its primary source, such as Secretaries of State and Companies House. OpenCorporates was an early innovator in this space, establishing itself as the most trusted source for legal-entity data, anchored in our seven Legal-Entity Data Principles. This commitment to provenance and quality is what sets our data apart.

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December 10, 2025

Entity Verification / Resources

How to map company networks using the OpenCorporates API + Relationships File

Understanding how companies connect has become a critical part of modern business intelligence. For assessing risk, managing compliance, or researching markets, you need to know more than just a company’s name and registration number - you need to know who owns what and how those entities relate.

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October 28, 2025

Data Access / General / Resources

How to check data coverage and freshness in OpenCorporates

This guide will help you understand how to check data coverage and freshness for different regions and countries in the OpenCorporates knowledge base. You'll learn how to find important information about company data in any jurisdiction.

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March 5, 2025

Data Access / General / Resources

Getting started with the OpenCorporates API: A beginner’s guide

Have you ever needed to look up information about companies across different countries? Whether you're in business, government, or research, the OpenCorporates API provides a powerful way to access data about millions of companies worldwide. In this guide, we'll walk through everything you need to know to start using the API.

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February 13, 2025

Fraud Investigations / General / Resources

An explosion of LLCs: the Wyoming angle cont’d

Over a decade ago, Wyoming adopted reforms that changed everything. Shortly after, Wyoming LLCs started becoming well-known outside the US.

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December 18, 2024

Case studies / Commercial / Resources

Step-by-step guide for using OpenCorporates data in entity verification

Entity verification is an essential part of RegTech solutions, especially for Know Your Business (KYB) and due diligence processes. This guide outlines a step-by-step approach for using OpenCorporates data to overcome common entity verification challenges. It’s for anyone who’s ever wondered “what problems with entity verification does OpenCorporates solve, and how does it solve them?"

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November 28, 2024

Community / Data / legal / Resources

Can I use OpenCorporates? Here’s everything you need to know

You’ve just stumbled upon OpenCorporates, a vast repository of corporate data, and you’re wondering, “Can I really use this?” This guide will walk you through the amazing features of our web portal, the importance of our data protection rules, and how you can be part of a global transparency movement.

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June 11, 2024

Community / Data / Resources

Shareholders vs. UBOs: A subtle distinction with big consequences in the fight against financial crime

In the business world, terms like “shareholder” and “ultimate beneficial owner” often pop up. But what do they mean? And more importantly, how do they differ from one another? Here’s…

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November 16, 2023

Community / Data / Impact / Resources

Democratizing justice: How open-source research is changing financial crime investigations

Financial crimes like money laundering, fraud, tax evasion, and corruption, are as old as the Lydian Kings and have been vexing rulers, regulators and law enforcement officers ever since. The…

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September 28, 2023