A global force for change.
What’s the Heart? Science?
We have a lot of respect for consumers.
They don’t want to be interrupted. We dig deep to understand their motivations, passion, and culture to deliver value at their touchpoints of attention.
We respond to data signals.
The creative use of innovative technology guides us. We work to uncover the most valuable consumer and behavioural data signals to drive connections at scale.
At the helm.
Hearts & Science was founded with a special focus on data analytics and a foundation of heart. Here are the masterminds behind our success.
-
Chris
Stanger Chief Executive OfficerAt the intersection of customer, culture, and content, Chris brings the wealth of OMG capabilities into a cohesive playbook for clients at Hearts & Science. He excels at connecting diverse pieces of information and naturally threads them into clear solutions and strategic narratives. Often, these insights begin by encouraging diverse viewpoints within his team to challenge the status quo, expand their skills, and identify unexpected areas of growth for clients.
With nearly 20 years of agency experience across categories like tech, telco, B2B, travel, and CPG, Chris architects integrated teams to deliver customer-centric solutions that maximize business outcomes and ROI for clients. From awareness and amplification strategies to integrated acquisition solutions, Chris knows how to build blueprints for brands to compete on the world stage.
Chris resides in Dallas with his wife and twin daughters (#twinning), where his meditative riffs often reverberate through the house as he unwinds on his guitars.
-
Sharon
Cullen Chief Investment OfficerWhether it’s making a mean guacamole or streamlining digital and programmatic, Sharon always strives for excellence. She is excited to inspire teams at Hearts & Science to put data at the forefront of their investment decisions and knows that this approach will help build trust with clients.
Sharon has been a key part of the Omnicom Media Group family for the last 25 years. From her early stage career in research and sales for A&E and BBDO to the east coast regional director at OMD, Sharon is ready to help others pivot along with an ever-changing media landscape. She was named Media Buyer of the Year by TVWeek in 2018 and has maintained a curious attitude toward continuously learning in the midst of an evolving industry.
But it’s not just accolades and experience that Sharon has been collecting along her career—she also has a diverse set of Brady Bunch paraphernalia. Ask her about it!
-
Alex
Siddall Chief Media OfficerAlex helps clients keep the emotional connection with consumers strong, even in an ever-growing transactional world. He believes there is true differentiation in how Heart & Science shows up for clients and is at the frontlines of defining strategic products to keep them there. From shaping the value proposition, to winning pitches and expanding the client portfolio, Alex is an invaluable asset on the Hearts & Science team.
With over 15 years of senior leadership experience, Alex directed projects at agencies like Initiative and We are Mobile Ltd to simplify stories, narrow focus, and translate campaigns across touchpoints. This work gave him a deep understanding of the importance of translating insights into actionable media behaviors and his contributions were instrumental to winning Adweek Agency of the Year in 2019.
If he’s not cooking up the next creative strategy for a client, he can be caught compulsively checking the latest property listings or brushing up on his semi-professional soccer skills.
-
Chanelle
Flavell Chief Client Solutions OfficerMedia takes more than just numbers in boxes, impressions, and GRPs. It also takes storytelling, and Chanelle loves to build media strategies that leverage both effective planning and standout creative ideas. Chanelle is also deeply involved in setting the cultural tone for Hearts & Science. She leads by example to encourage Hearts to live by the agency values in their commitment to each other and the standout work they produce for clients.
Chanelle brings 20+ years of agency experience, building teams that help brands connect with consumers. She has held leadership roles across multiple verticals, from retail to FMCG to tech. In her previous role as managing director at Carat USA, she was an integral player in its successful bid to retain the global Microsoft media account. She managed the tech giant’s consumer products while overseeing a team of more than 100 employees. Her work here was featured in the Super Bowl and earned a Grand Prix, two Golds, and one Bronze at the 2019 Cannes Lions.
Recognized by Ad Age 40 Under 40, Chanelle is a woman of ambition who loves to see the work of her team come to life in the real world and the incredible business results that follow. She works hard but still finds time to bring fun into the workplace with her contagious Australian humor. Sometimes that looks like being in the background of a Justin Bieber music video (by accident), and other times, it’s a Backstreet Boys documentary (on purpose).
Closer to home.
-
Jason
Jahn Executive Director, Marketing & Employee EngagementEver an artist and scientist, Jason has a powerful capacity to reverse-engineer complex brand challenges and harness this knowledge in the service of growth. His strategic leadership is consistently inspired by data and powered by purpose to produce positive impact fast. No process is too technical to break down into understandable pieces, and his connection-building extends internally across the Hearts & Science team, too. He is a listener, a trust-builder and a mentor — always putting people first and letting the results follow.
Jason has extensive experience managing marketing teams, honing his deep empathy, negotiation skills and contagious enthusiasm. From Marketing Director at ShareThis to Head of Agency & Partnership Marketing at AOL, he knows firsthand the value of a well-defined brand and how to make magic happen through marketing. His work at AOL helped drive $100M+ in revenue and prepared him for his role at Hearts & Science, where he has spearheaded and won 125+ agency nominations and awards.
Whether it’s optimizing a complicated campaign or the maximum number of travel points, Jason has a passion for hacking systems and improving processes. He also recently discovered a soft spot for rescue dogs — ask him about his latest foster!
-
Agnieszka
Stelmaszczyk Managing Director -
Catherine
Leung Managing Executive Director, Head of ActivationCurious by nature, Catherine is always thinking of new initiatives to improve how Hearts & Science services its clients in the digital world. Her big-picture perspective and deep technical knowledge are the foundation of every solution and help her to balance data and emotion throughout the consumer journey. Most recently, she brought her unique expertise to key accounts by uncovering new paths to growth in opportunity-ripe areas, such as commerce and experience design.
Catherine has over a decade of experience building future-proofed connections between consumers and global brands and knows what it takes to unlock client growth. In her previous role as SVP at Zenith, she oversaw digital investment and activation for Verizon. There, she delivered over $20M in savings and media value through strategic marketplace negotiations and joint business plan developments with key partners. During her time on Microsoft at Carat, Catherine also drove a number of key initiatives and product launches across both consumer and commercial categories. Most notably, she led the digital marketing efforts for the launch of Surface products across six markets globally.
Catherine loves to get deep into the weeds of data to uncover insights and accelerate digital transformation for clients. Her strategic vision has led to award-winning work, earning her an Effie, Cannes Creative Data Lions, and a Carat Diamond. Her obsessive digital research skills also serve her well when visiting new cities, where she is the master of finding the best restaurants, hotels, and bars. Just consider her your personal Yelp.
-
Wilson
Standish Head of Content & CreativityWith a career that began as a trend forecaster, Wilson continues to get ahead of consumers with the right content before they even know they need it. He elevates content creation far beyond a “nice to have” for businesses. Rather, he believes it is an essential way to tell meaningful stories, give back to communities, and ultimately create moments that provide value and drive emotional velocity for consumers.
Wilson has more than 10 years of experience across diverse content mediums. From helping Porsche launch its first endeavors into AR and VR to PepsiCo’s first integrations into wearables, Wilson knows how to help brands navigate what’s next. His work on voice technology won a first-ever Cannes Lions award for a voice skill at Gimlet Media and led to its acquisition by Spotify. He is the winner of three Adweek Media Plan of the Year awards and loves to see content that his team has created out in the world.
A ravenous learner, Wilson is always looking to experience something new, be it a sport, a project, or history. Most recently, he has been exploring the art of fermentation, where he finds joy in the subtle differences of each batch created from produce sourced in ever-changing environments.
Belonging at Hearts
We’re deeply committed to breaking down systemic bias and building a more inclusive world. Our action plan addresses a broad range of workplace inequalities with an urgent focus on advancing opportunities for Black, Indigenous and People of Color (BIPOC).
