Insights

Merger traction A&O Shearman is the result of a May 2024 merger between Allen & Overy and Shearman & Sterling, indicating a combined client base, expanded service lines, and potential cross-sell opportunities across international law and corporate practice.

Large firm scale With an employee range of 1001-5000 and revenue in the multi‑billion range, the firm represents a substantial potential for enterprise-wide legal operations solutions, enterprise software adoption, and large-scale managed services.

Tech stack signals Adoption of tools such as HighQ, OpenAI Codex, SQL, TypeScript, GitHub, Sprinklr and Hanzo suggests openness to digitization, collaboration platforms, AI-assisted workflows, and developer-friendly environments ripe for workflow automation and cybersecurity offerings.

Executive turnover Notable recent departures and new hires in leadership roles, particularly in private capital, financial services regulation, and public international law, indicate ongoing strategic realignment and potential needs for leadership-focused advisory, risk/compliance solutions, and knowledge-management enhancements.

Geographic expansion Investments in Australia and London practice areas, plus ongoing lateral hires, point to growth in key markets and opportunities for regional IT/digital transformation, data governance, and cross-border service delivery to support a global client footprint.

Allen & Overy Tech Stack

Allen & Overy uses 8 technology products and services including CISSP, GitHub, Hanzo, and more. Explore Allen & Overy's tech stack below.

  • CISSP
    Certificates
  • GitHub
    Communication And Collaboration
  • Hanzo
    Customer Data Platforms
  • Sprinklr
    Customer Experience Management
  • SQL
    Database
  • HighQ
    Legal Solutions
  • OpenAI Codex
    Machine Learning
  • TypeScript
    Programming Languages

Media & News

Allen & Overy's Email Address Formats

Allen & Overy uses at least 2 format(s):
Allen & Overy Email FormatsExamplePercentage
First.Last@allenovery.comJohn.Doe@allenovery.com
95%
LastF@allenovery.comDoeJ@allenovery.com
3%
First.MiddleLast@allenovery.comJohn.MichaelDoe@allenovery.com
1%
First.Middle@allenovery.comJohn.Michael@allenovery.com
1%
First.Last@aoshearman.comJohn.Doe@aoshearman.com
99%
FLast@aoshearman.comJDoe@aoshearman.com
1%

Frequently Asked Questions

What is Allen & Overy's phone number?

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You can contact Allen & Overy's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Allen & Overy's official website and social media links?

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Allen & Overy's official website is aoshearman.com and has social profiles on LinkedIn.

How much revenue does Allen & Overy generate?

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As of July 2026, Allen & Overy's annual revenue is estimated to be $1B - $10B.

What is Allen & Overy's SIC code NAICS code?

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Allen & Overy's SIC code is 7389 - Business Services, Not Elsewhere Classified NAICS code is 54111 - Offices of Lawyers.

How many employees does Allen & Overy have currently?

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As of July 2026, Allen & Overy has approximately 2.9K employees across 6 continents, including EuropeNorth AmericaAsia. Key team members include CEO: A. B.Chief Financial Officer: F. M. C. S.Partner: J. E. W.. Explore Allen & Overy's employee directory with LeadIQ.

What industry does Allen & Overy belong to?

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Allen & Overy operates in the Law Practice industry.

What technology does Allen & Overy use?

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Allen & Overy's tech stack includes CISSPGitHubHanzoSprinklrSQLHighQOpenAI CodexTypeScript.

What is Allen & Overy's email format?

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Allen & Overy's email format typically follows the pattern of First.Last@allenovery.com. Find more Allen & Overy email formats with LeadIQ.
Allen & Overy logo

Allen & Overy

Law PracticeUnited Kingdom1001-5000 Employees

Allen & Overy, based in the United Kingdom, became A&O Shearman after merging with Shearman & Sterling on May 1, 2024. The firm operates in the corporate and commercial law arena, offering advisory and transactional support to clients with sophisticated needs. Its international reach is evidenced by leadership and client matters across regions such as Europe and Asia. In 2026, the firm announced plans to relocate its London offices to 1 Broadgate, reflecting ongoing expansion in the city. Recent activity includes advising on a USD 100 million senior note issuance for the Indika Energy Group in Indonesia, illustrating its involvement in cross-border financing transactions.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
54111 - Offices of Lawyers
Employees
1001-5000

Section iconFunding & Financials

  • $1B - $10B

    Allen & Overy's revenue is estimated to be in the range of $1B - $10B

Section iconFunding & Financials

  • $1B - $10B

    Allen & Overy's revenue is estimated to be in the range of $1B - $10B

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