One Day CMO

From Strategy to Execution Across Multiple Founder-Led Brands
Fractional Marketing Leadership · Fractional Marketing Partner
About
Emmelie De La Cruz · One Day CMO
Emmelie De La Cruz is a growth marketing strategist, founder, and fractional CMO known for helping founder-led companies transform marketing into scalable business systems. After a decade leading marketing for technology and consumer brands, she launched One Day CMO to help $1M–$5M+ founder-led businesses develop intentional marketing strategies, operational workflows, and growth systems that support long-term scale. Beyond her consulting practice, Emmelie has built a community of 50,000+ entrepreneurs and business owners, delivered 50+ VIP Days and annual marketing intensives, and shared her expertise through speaking engagements, podcasts, and publications. Her work has been featured by Forbes and Black Enterprise, and she has collaborated with organizations including Staples, Dropbox, Capital One, and Coca-Cola.
The Brief
Joined the consultancy as a Marketing Strategy and Operations Consultant, partnering closely with Emmelie De La Cruz to support client engagements across multiple founder-led brands. I contributed to the development and coordination of marketing strategies, helped optimize marketing operations and workflows, and supported VIP Day intensives that equipped six- and seven-figure businesses with scalable marketing foundations. I also coordinated cross-functional initiatives to keep projects, timelines, and deliverables aligned from strategy through execution.
The Work
- Collaborated on the development and execution of marketing strategies across Black Girls Curls, Phenyx Athletica, Charm City Buyers, and XoNecole.
- Improved marketing operations by streamlining workflows, documenting processes, and strengthening cross-brand project coordination.
- Supported integrated campaigns for XoNecole, including brand partnerships with Toyota, Tampax, and European Wax Center.
- Assisted with lead generation, audience growth, customer database development, and influencer marketing initiatives to increase engagement and brand visibility.
Receipts
4
brands run in parallel
4
partner campaigns — Toyota, Tampax, European Wax Center
6–7 figure
client businesses supported
In Their Words
“Estefany stepped in to manage accounts, ensuring clients' needs were met and that our team was delivering as expected. She managed a large client project so I could take a much-needed backseat during my pregnancy, and she navigated my business challenges masterfully. So well that the client extended their contract with us for another year when I returned from maternity leave. Regardless of the task or timeline, her marketing strategy and campaign management skills were exceptional, managing major client and brand partnerships /sponsorships. She was able to jump in where needed and was the glue connecting our people and projects. I cannot recommend her enough! She held it down, a true asset!”
Emmelie De La Cruz
Fractional CMO
The Spread







The Room
Alongside:Toyota · Tampax · European Wax Center · Black Girls Curls · Phenyx Athletica · Charm City Buyers · XoNecole
Tools:Google Suite | SplashThat | Design Pickle | Flocksy | Canva | Libsyn | Airtable | Clickminded
Field Notes
This was the one that showed me my real job isn't making the marketing — it's building the thing that makes marketing run without me in the room.