Josh Rosenberg Runs Day One, PRWeek's 2026 Agency of the Year

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Edited September 2026.

Day One Agency is an independent creative communications firm built around earned media and cultural storytelling for younger audiences. Founded in 2014 by Josh Rosenberg, who continues to lead the firm as CEO, Day One was named PRWeek's 2026 Midsize Agency of the Year and Campaign US's PR Agency of the Year and Independent Agency of the Year (for the second consecutive year). The firm reported $51 million in net revenue in 2025, up 7.4% year-over-year, with its studio/production business growing 33% year-over-year.

History and Leadership

Josh Rosenberg co-founded Day One Agency in New York in 2014, combining traditional PR, digital, and creative-agency disciplines under one roof. Rosenberg has led the firm continuously since founding, building it into an agency whose workforce and client thinking skew toward next-generation consumers. The firm invests in early-career talent through its apprentice program and has continued to add senior leadership across story and strategy as it enters its second decade.

Group Chat and Gen Z Insight

Day One's proprietary insight platform, Group Chat, is a network of Gen Z contributors who provide real-time feedback on trends, content, and brand behavior — shaping both strategy and creative development. The firm has also published "Ask Gen Z," a mobile ethnographic study conducted in partnership with the USC Annenberg Center for Public Relations.

Expertise

Day One combines the disciplines of traditional PR, digital, and creative agencies to shape, share, and fuel stories that connect with culture. Areas of expertise include earned-media strategy, brand storytelling, content and studio production, photo and video, social and influencer strategy, and community management.

Clients and Recent Work

Long-term client relationships include American Express, Nike, Chipotle, Converse, and Ferrara, with newer assignments from Target, Pacifico, LL Bean, and Canada Goose. Recent campaigns include Chipotle's "Tatted Like a Chipotle Bag" and Converse's basketball-line relaunch tied to NBA All-Star Weekend. The firm's Converse "Social: Sports" work won a 2026 Webby Award.

Awards

The agency's recent recognition includes:

• PRWeek — 2026 Midsize Agency of the Year
• Campaign US — PR Agency of the Year and Independent Agency of the Year (2026, second consecutive year)
• The Webby Awards — 2026 Winner, Social: Sports (Day One Agency x Converse)
• PRovoke Media — Small Agency of the Year (2018)

Key Takeaways

• Day One Agency was founded in 2014 by Josh Rosenberg, who remains CEO.
• Named PRWeek's 2026 Midsize Agency of the Year and Campaign US's PR and Independent Agency of the Year.
• 2025 net revenue of $51 million, up 7.4% year-over-year; studio business grew 33%.
• ~251 employees across New York and Los Angeles.
• Built around the proprietary Group Chat Gen Z insight platform.
• Long-term clients include American Express, Nike, Chipotle, and Converse.

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