Our research


The IFLR1000 is the guide to the world's leading financial and corporate law firms and lawyers. Our first rankings were published in 1990 and we currently research over 120 jurisdictions worldwide.

We produce:

  • Law firm and lawyer rankings categorised by practice area and jurisdiction
  • A directory of firms and lawyers
  • Daily news and features including analysis of market trends and law firm news
  • Reviews of law firm performance, including practice area, sector and geographical strengths, client and peer feedback and examples of transactional work.

Research projects

The IFLR1000 research is a continuous process and our journalists keep abreast of major developments (notable transactions and law firm news) throughout the year.

If you have any relevant news you wish us to consider for our research please contact a member of our RESEARCH TEAM.

Our main research project is FINANCIAL AND CORPORATE which is published in October.

The research incorporates the following core practice areas:

  • Banking and finance
  • Capital markets
  • Corporate and M&A
  • Project development
  • Restructuring and insolvency

*In some jurisdictions we also research competition, financial services regulatory and investment funds.

For explanations of what work can be submitted for each practice area, please view our: PRACTICE AREA DEFINITIONS

Ranking criteria

Our law firm rankings are based on three key criteria:

Transactional evidence
We ask all firms to provide transactional highlights from their last 12 months of work.

We also analyse statistical evidence of transaction values and volumes provided by market survey title Dealogic.

Peer feedback
No one knows more about the legal market than those professionals who work in it.
We conduct an online Lawyer feedback survey of law firm partners to get their thoughts and feedback on our current law firm rankings and leading lawyers.

All partners active in the relevant research categories are invited to take part and we also speak to a great number of practitioners through phone and face-to-face interviews.

Client feedback
We speak to a wide range of corporate and in-house contacts as part of our Client feedback survey to get their opinions on the firms and lawyers they use.

We ask for feedback on the following attributes:

  • Technical ability
  • Accessibility and communication
  • Depth of team
  • Value for money
  • Client/lawyer relationship
  • International network

Leading lawyers and rising stars

Alongside our firm rankings we also recognise the work of outstanding individuals. Our recommendations are based on the same three factors as our law firm rankings.

Leading lawyers
These are individuals who have proved themselves to be among the leading figures in their respective markets. As well as receiving recommendations from clients and peers these individuals will also have a clear track record of innovative work.

Rising stars
These are individuals considered by the market to be the ‘Leading lawyers’ of the future. Often more junior members of the firm they will have demonstrated their skills and potential by already advising on innovative transactions.

Annual research submissions

To supplement the information our journalists source from the market we also ask law firms to submit an annual summary of their practice in the last 12 months, including transactional highlights, practice group developments and any recruitment or departures of legal staff.

We also ask firms to submit client referees, who we contact as part of our research to seek opinion on the performance of firms. Client referees must have worked with the firm in the 18 months prior to submission.


Submission guidelines

  • Firms may submit information using our RESEARCH FORM available for download below.
  • If preferred, firms may also submit their information in either text (Microsoft Word or equivalent) or PDF format.


The annual summary submission MUST include the following information:

  • Key individuals within each practice area team
  • Recruitment and departure of senior lawyers (partner or counsel level)
  • Other notable developments - panel appointments, industry award wins etc.
  • Examples of the firm’s key transactional or case work in the last 12 months prior to the submission. Transactions or cases must have either been closed or had significant work completed on them in this time period.
  • Firms can submit an annual summary for each ranking category covered in each jurisdiction in which they are active.
  • Firms can submit in jurisdictions where they do not have an office however please note that if the firm does not practice local law it will only be eligible for inclusion in our foreign firms category in that jurisdiction.
  • International firms may make a submission for an entire region if they are active in it but do not have offices there. For example Latin America or Africa, however, the same restrictions defined above apply.
  • Firms can submit information for more than one ranking category in the same form, for example Banking AND Capital markets or M&A AND Private equity.

Ranking categories

The specific ranking tables we produce for each jurisdiction are defined by the size and maturity of the market.