Mark Louis Gabrielli Jr. is a fractional Chief Marketing Officer (CMO) and COO with 15+ years of executive marketing and operations leadership, founder of WETYR Corp and 36 digital ventures, specializing in B2B revenue growth, demand generation, and go-to-market strategy for companies with M-0M in revenue.
Scaled multiple companies from $5M to $10M+ through architected growth systems, not one-off campaigns.
Managed seven-figure annual ad spend with consistent ROAS optimization across Meta, Google, and emerging channels.
Built and led cross-functional teams spanning growth, creative, analytics, and automation from the ground up.
Key contributor to both buy-side and sell-side M&A transactions, aligning marketing with enterprise value drivers.
Pioneered AI-driven marketing systems that reduced CAC by 30%+ while increasing conversion rates and pipeline velocity.
Designed marketing operating systems that compound growth - CRM, automation, attribution, and funnel architecture.
What does a fractional CMO do for companies in this market?
A fractional CMO acts as your Chief Marketing Officer on a part-time basis -- typically 2-3 days per week -- with full executive accountability for strategy, team leadership, budget, and revenue outcomes. They own your entire marketing function and are accountable for pipeline generation and revenue attribution, not just deliverables.
How quickly will I see results?
Most engagements produce measurable outputs within 30 days: a GTM strategy, ICP definition, messaging architecture, and demand generation plan. Pipeline movement typically appears in 60-90 days as campaigns launch. Long-term compounding results build over 6-12 months.
Is there a long-term contract required?
No. Every MarkCMO engagement is month-to-month. There are no long-term contracts, no cancellation fees, and no lock-in. You stay because the results justify it. We offer a free GTM diagnostic before you commit to any paid engagement.
Do I have to sign a long-term contract?
No. Every MarkCMO engagement is month-to-month. There are no long-term contracts, no cancellation fees, and no lock-in clauses. You stay because the results justify it -- not because you are contractually obligated. We offer a free GTM diagnostic before you commit to any paid engagement so you can validate fit before spending a dollar.
How does the engagement start?
Step one is a free 30-minute GTM diagnostic call. We review your current situation, revenue goals, team structure, and the biggest gap between where you are and where you need to be. If there is a clear fit, we outline a 30-60-90 day plan and agree on scope. Most engagements are live within 5-7 business days of the diagnostic call.
Find out what your first 90 days would look like.
Start here, free →Free, no obligation. If it's a fit, you'll pick a time to talk with Mark directly.Book a free GTM diagnostic call. No pitch. No pressure. We review your current situation, identify the single biggest gap in your marketing, and give you a clear path forward -- whether you hire us or not.
4.9★ rated • 193 client reviews • No long-term contracts • Month-to-month