Sherlock Communications: Sao Paulo LATAM PR Agency Profile
Sherlock Communications is a São Paulo PR agency for international brands in Latin America, co-founded by Patrick O'Neill and Alasdair Townsend, with bureaus.
Profiled
Dec 15, 2020
Desk
EPR Editorial Team
Firm summary
Sherlock Communications is a São Paulo communications agency, co-founded by Patrick O'Neill and Alasdair Townsend, that helps international organizations reach Latin American audiences. Sources give its founding year as 2015 or 2016. The firm says its team exceeds 150 professionals, and a Brazilian trade report says it was named Best Agency in Latin America at the 2026 PRWeek Global Awards.
Originally published December 2020. Updated October 17, 2026.
Who founded and leads Sherlock Communications?
Patrick O'Neill and Alasdair Townsend founded Sherlock Communications, according to the firm's releases and a PRWeek interview posted on its site. Meio & Mensagem reported in March 2026 that O'Neill remains co-founder and managing partner and that three managing directors who joined in 2018 now lead operations jointly beneath him. The firm's 2020 release said it had a team of more than 40 across offices in São Paulo, Bogotá, Buenos Aires and Mexico City.
What awards has Sherlock Communications won?
Delfino reported that Sherlock won Best Agency in Latin America and International Agency at the 2024 PRWeek Awards. The firm's September 2024 release says it had 16 nominations and 7 wins at the Latin America SABRE Awards, including Financial Communications for Hantec Markets and Social Media for GitHub. ABC da Comunicação reported in May 2026 that it was again recognized as Best Agency in Latin America at the PRWeek Global Awards 2026, calling it the sixth time.
What does Sherlock Communications do?
Sherlock describes 360-degree campaigns across PR, digital strategy, social media and media relations for international clients in Latin America. Its site says it has a research arm called Broadminded that tracks regional shifts in technology, finance and sustainability, and a media management app called Arybe. EPR's crisis PR and reputation management pages cover related practice.
How does Sherlock Communications compare with other international firms?
Sherlock is a regional independent, so compare it with Relevance International and Hawkins International, and see the PR agency profiles directory.
Related: PR agency profiles, Crisis communications, Reputation management, 5W Public Relations
Sherlock Communications: Sao Paulo LATAM PR Agency Profile FAQ
Who founded Sherlock Communications?
Patrick O'Neill and Alasdair Townsend co-founded it in São Paulo.
Where is Sherlock Communications based?
It is based in São Paulo, Brazil, with bureaus across Latin America.
What does Sherlock Communications specialize in?
It specializes in communications for international organizations operating in Latin America.
Editorial assessment by Everything-PR, based on public record and archive coverage. No firm-supplied marketing copy, no paid placement.
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