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Mark Louis Gabrielli Jr.

Chief Marketing Officer / Growth Architect / Revenue Systems Builder

[email protected] | linkedin.com/in/marklgabrielli | markcmo.com/portfolio | markcmo.com/book | South Florida

$10M+ Revenue Scaled | $5M+ Ad Spend Managed | 40+ Team Members Led | 2 M&A Exits
Executive Summary
Revenue-focused Chief Marketing Officer with a track record of scaling companies from $5M to $10M+ through system-driven marketing architecture. Managed $5M+ in annual advertising budgets across Meta, Google, and emerging channels while building and leading cross-functional teams of 40+ across growth, creative, analytics, and automation. Directly involved in 2 successful company exits (buy-side and sell-side), aligning marketing performance with enterprise valuation drivers. Known for architecting AI-powered marketing systems and scalable infrastructure that reduce CAC, accelerate pipeline, and compound revenue - not just campaigns, but the operating systems behind them.
Quick Answer

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.

4.9★ 193 Reviews
90% Retention Rate
19+ Ventures Built
$50M+ Revenue Generated
30 Days to First Results
Core Competencies
Go-To-Market Strategy Demand Generation Revenue Operations Customer Acquisition & Lifecycle Brand Strategy & Positioning Performance Marketing AI-Driven Marketing Systems Marketing Automation Martech Stack Development Data Analytics & Attribution Conversion Rate Optimization Multi-Channel Growth M&A Marketing Integration Digital Transformation Team Leadership & Org Design Web Development & Site Building SEO & Technical SEO ABM & Buyer Intent Platforms
Experience
Chief Marketing Officer & Growth Advisor 2020 - Present
MarkCMO - Executive Marketing Consultancy
Fractional CMO practice serving PE-backed firms, high-growth startups, and enterprise organizations.
  • Scaled multiple client companies from $5M to $10M+ in annual revenue by architecting full-funnel GTM strategies across paid, organic, and partnership channels
  • Managed $5M+ in combined annual ad spend across Meta, Google, TikTok, and LinkedIn with consistent ROAS optimization and attribution modeling
  • Built and led cross-functional teams of 40+ spanning growth marketing, creative production, analytics, and marketing automation
  • Designed and deployed AI-driven marketing systems using Claude, ChatGPT, and custom automation pipelines that reduced CAC by 30%+ while increasing conversion rates
  • Served as strategic marketing advisor during 2 successful company exits, aligning marketing KPIs with valuation multiples for both buy-side and sell-side transactions
  • Engineered scalable marketing infrastructure including CRM architecture, lead scoring models, and automated nurture systems that compound pipeline velocity quarter over quarter
VP of Marketing & Growth 2017 - 2020
Multi-Vertical Operating Company
High-growth portfolio company spanning e-commerce, SaaS, and services verticals.
  • Drove 120% revenue growth over 3 years
  • Established first RevOps function
  • Led brand repositioning increasing qualified lead volume by 45%, sales cycle velocity by 22%
  • Scaled marketing org from 8 to 28 team members
  • Martech stack consolidation reduced costs by $380K annually
Director of Digital Marketing 2014 - 2017
Growth-Stage Technology Company
Series B technology company focused on B2B SaaS solutions.
  • Built digital marketing function from ground up
  • Multi-channel paid campaigns generating 60%+ of qualified pipeline
  • HubSpot implementation increasing MQL-to-SQL conversion by 38%
  • Grew organic traffic by 4x within 18 months
Marketing Strategist & Consultant 2011 - 2014
Independent Consulting Practice
  • Strategy for 20+ clients
  • Go-to-market playbooks reducing time-to-revenue by 40%
  • Built repeatable frameworks for customer acquisition and brand positioning
Performance Dashboard
$50M+
Revenue Influenced
-32%
CAC Reduction
2.4x
Revenue Growth
2011 2014 2017 2020 Now
M&A Deal Sheet
Sell-Side Exit
Growth-Stage Portfolio Company
Role: CMO / Marketing Lead
Revenue scaling & brand positioning
Aligned marketing KPIs to valuation
Successful exit at premium multiple
Buy-Side Integration
PE-Backed Acquisition Target
Role: Marketing Integration Advisor
Due diligence & post-merger GTM
Unified martech & team structures
Accelerated post-acquisition growth
Case Studies
Revenue Scale
$5M to $10M+ Revenue Architecture
2x+ Revenue Growth
Performance
$5M+ Ad Budget Optimization Engine
-32% CAC Reduction
M&A
Exit-Ready Marketing Organization
2 Successful Exits
Tech Stack - 109 Tools
Frontend
HTML5, CSS3, JavaScript, React, Responsive Web Design, MJML, Liquid (Shopify/ESP), Schema Markup, Sitemap Markup
Backend
APIs & Webhooks, SQL, Google Tag Manager, Segment, mParticle, Amperity, Multi-Touch Attribution, Data Layer Management
CMS
WordPress, Webflow, Shopify, Magento, Contentful
CRM
Salesforce (Sales + Marketing Cloud), HubSpot, Zoho CRM, Marketo, Pardot, ActiveCampaign, Make (Integromat), Zapier, n8n
Advertising
Google Ads, Meta Ads Manager, TikTok Ads, LinkedIn Campaign Manager, The Trade Desk, StackAdapt
Analytics
Google Analytics (GA4), Looker, Tableau, Power BI, Mixpanel, Amplitude, Heap, Northbeam, Triple Whale
Email / SMS
Klaviyo, Braze, Iterable, Mailchimp, Zoho Campaigns, Brevo, Constant Contact, Postscript (SMS), Attentive (SMS)
SEO
SEMrush, Ahrefs, Screaming Frog, Clearscope, Brightlocal, Whitespark
A/B Testing
Optimizely, VWO, Convert.com, Dynamic Yield, Mutiny, Adobe Target
Social
Sprout Social, Later, Buffer, Hootsuite, GRIN, AspireIQ, CreatorIQ, Impact, Refersion, PartnerStack
Design
Figma, Canva, Adobe Photoshop, Adobe Illustrator, Premiere Pro, After Effects, Miro
Communication
Slack, Asana, Monday, Trello, Notion, Airtable, G Suite, Microsoft 365, Zoom, Loom
AI / LLM
ChatGPT, Claude, Gemini (Google), Jasper, Midjourney, DALL-E, Descript, Copy.ai, Writesonic, Lumen5, Perplexity
ABM
6sense, Demandbase, Clearbit, ZoomInfo
Key Wins
Multi-Company Revenue Scale
$5M+ Ad Budget Mastery
40+ Person Team Leadership
2 Successful Company Exits
AI Marketing Infrastructure
Scalable Marketing Architecture
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What You Get - Frequently Asked Questions

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.

Free 30-Min Diagnostic

Ready to Build a Marketing Engine That Compounds?

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.

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4.9★ rated • 193 client reviews • No long-term contracts • Month-to-month