Firewood Marketing Joins The S4 Capital Family

From 330 employees to over 1,800 in 23 countries in a digital first, always on approach, Firewood is excited for the next adventure.

Our new family

We’re taking a big leap forward by joining forces with MediaMonks, the digital content arm of the S4 Capital family. This allows Firewood to enhance our capabilities, accelerate growth and bring our agile, efficient, and transparent way of working to new global clients.

We’ve grown rapidly over the last 10 years, expanding to seven offices in four countries. We were honored to make the inaugural list of Adweek’s 100 Fastest Growing Companies this year, coming in at number six among large agencies. Inspired by our momentum as a company, Juan and Lanya would only consider a like-minded partner who would further our offerings, preserve the  Firewood culture and values, and help drive the next stage of our growth. MediaMonks and S4 fit all of these criteria, while also offering new, complementary capabilities to our clients.

Our Co-Founder and CEO Juan Zambrano said, “We came from the client world and had a very different and non-agency mindset. From day one, we created an integrated and disruptive model built on transparency and collaboration that supported becoming extensions of our clients, something that other agencies weren’t doing. We are delighted to be teaming up with MediaMonks and joining the S4 Capital platform. We believe this is an exciting next step for our clients and colleagues, and look forward to continued growth and success.” 


Why S4 Capital?

With S4 Capital, we found a visionary in the digital advertising and marketing space. S4’s strategy is to build a digital-first, integrated services business in three areas: first-party data, digital content, and digital media planning and buying—with a focus on speed, quality and value.

By being focused on digital, S4’s family of companies can move at a moment’s notice with scale always in mind. Similar to Firewood, its direct partnership model allows the flexibility to move at the pace of clients,  delivering custom content across all digital touchpoints. S4 employs over 1,500 people in 22 countries across The Americas, Europe, the Middle East & Africa and Asia Pacific. It’s an exciting time for Firewood to join this talented team of digital content producers, programmatic advertising specialists and data wizards. Together we see a bright future for our clients and what we can achieve as one.  


A little bit about MediaMonks

MediaMonks joined forces with S4 in July 2018. An award-winning international digital creative content and production company,  MediaMonks partners with clients across industries and markets to craft amazing work for leading businesses and brands. Its integrated production capabilities span the entire creative spectrum. 

From creative campaigns and content to bespoke development and design, MediaMonks works above the line and below the fold at the intersection of creativity and technology. Operating across time zones and technologies with an incredible in-house team of more than 1300 Monks from a variety of backgrounds and cultures, its work is recognized by advertising and craft awards around the world, producing 131 Cannes Lions and 240+ FWAs to date.

Founding Monk and COO of MediaMonks Wesley ter Haar said, “Firewood’s ‘embedded’ approach will allow us to build deeper and broader relationships with our clients, helping us work in a more flexible, collaborative and integrated way.”


Still the same, but better

We will keep doing what we’re doing—delivering the innovation, creativity, and partnership our clients value—but now with a little help from some new friends.

With an even larger global presence and network of talented colleagues, Firewood can expand its around the clock support across regions, enhancing speed and scale without compromising quality. 

Our Co-Founder and President Lanya Zambrano said, “This merger is recognition of all our people. The richness of our differences creates our collective value. We embrace finding diverse talent; as a certified Women/Minority-owned Business Enterprise, 38% of our employees are from diverse ethnic backgrounds, 67% are women, and our leadership team is comprised of nearly 64% women. We look forward to developing a new, disruptive model in the communications industry with MediaMonks and S4 Capital as further proof that diversity is an intrinsic part of our industry’s future.”


Saying thanks

Of course, none of this is possible without our clients. We are grateful for their belief in Firewood and our way of working. 

And finally, thank you to our people who show up every day with a sense of responsibility, work hard, challenge one another, and have fun along the way. Their talent, dedication, and attitude make Firewood, Firewood. 

Today calls for celebration as we move forward together. To find out more about our new extended family and to ask any questions, please email or for media inquiries, contact

About Firewood Team

Firewood is a global digital marketing agency founded on the idea that good people are good business. With a model that focuses on speed, quality, and value, it partners with top tech brands, startups, and Fortune 500 companies—including Google, LinkedIn, Facebook, VMware, Salesforce, Cummins, and other key clients—providing strategy and insights, creative, performance media, events, and technology services. Firewood was named an Ad Age Best Place to Work 2020, ranking No. 13 of the Top 25 (201+ employees). Firewood was also ranked No.1 on the list of largest advertising, marketing, and PR agencies in Silicon Valley by the Silicon Valley Business Journal (2019), and No. 6 (large agencies) on the Adweek 100 Fastest Growing Agencies (2019) list. Founded in 2010, Firewood is headquartered in San Francisco with seven offices in four countries and nearly 400 employees. In October 2019, Firewood merged with global creative production company MediaMonks to become the digital marketing arm of S4 Capital (SFOR.L). Learn more at