The best fractional CMOs bring senior-level strategy without the full-time cost—but finding the right one takes more than scanning a résumé. I've compared top options by strategic depth, industry fit, and track record so you can make a confident hire. Whether you need GTM leadership, demand generation, or brand direction, this guide helps you find a fractional CMO who can move fast and deliver results.
Top 15 Fractional CMOs
Below are the profiles of top fractional CMOs, covering who they are and what they bring to the table.

Alan Gonsenhauser
CEO at Demand Revenue
Focus area:
#Fractional CMO leadership#GTM strategy#Private equity#B2B SaaS#CMO coaching
Alan Gonsenhauser is the CEO of Demand Revenue, an 11-time CMO and three-time P&L general manager who advises and serves as interim CMO for private equity-backed B2B companies and CMOs on growth.
His work combines interim marketing leadership, CMO coaching, and go-to-market advising. Since founding Demand Revenue, he has worked with private equity portfolio companies on GTM alignment, customer-led growth, marketing infrastructure, and value creation.

Mark Gabrielli
Fractional CMO & COO at MarkCMO
Cape Canaveral, United States
Focus area:
#B2B marketing#Revenue growth#GTM strategy#Marketing operations#Executive leadership
Mark Gabrielli is the founder of MarkCMO and a fractional CMO and COO. He has 15+ years of executive experience spanning B2B technology, SaaS, healthcare, aerospace, and industrial markets worldwide.
Gabrielli works closely with growing companies to align positioning, demand generation, sales funnels, and marketing operations with revenue goals. He also draws on his business experience to improve company systems, workflows, and leadership decisions.
Connect with Mark:

Pam Didner
Fractional CMO at Relentless Pursuit
North Carolina, United States
Focus area:
#B2B marketing#AI marketing#Sales enablement#Marketing strategy#Sales-marketing alignment
Pam Didner is the founder of Relentless Pursuit, a B2B and AI marketing strategist, fractional CMO, speaker, and author. She helps businesses connect marketing strategy with sales support.
Didner helps organizations make AI practical across marketing and sales while working on strategic planning, content, account-based marketing, and sales enablement. Her consulting draws on deep B2B experience and a body of books, training, and speaking focused on turning strategy into execution.

Peter Geisheker
Founder & CEO at The Geisheker Group
Watertown, United States
Focus area:
#B2B marketing#Demand generation#Positioning#SaaS marketing#Marketing leadership
Peter Geisheker is founder and CEO of The Geisheker Group and a B2B fractional CMO firm. He has nearly three decades of marketing leadership across SaaS, technology, and growth companies worldwide.
Geisheker's fractional work centers on demand generation, positioning, messaging, and leading marketing teams and vendors. His background includes global digital and marketing leadership in SaaS, with experience building high-volume acquisition programs and connecting marketing activity to revenue.
Connect with Peter:

David Berkowitz
Founder & CEO at High Caliber AI
New York, United States
Focus area:
#AI marketing#B2B marketing#Marketing strategy#Community building#Marketing innovation
David Berkowitz is founder and CEO of High Caliber AI, Chief Community Officer at Marketecture, and a former CMO and SVP. His career spans AI, marketing, media, and community building.
Through High Caliber AI, Berkowitz works as a fractional AI CMO helping B2B technology companies and agencies apply AI to marketing. His experience also includes senior roles at Mediaocean, MRY, and Sysomos, plus extensive writing, speaking, and community building around emerging marketing technology.
Connect with David:

Neal Schaffer
Fractional CMO
Irvine, United States
Focus area:
#Digital marketing#AI marketing#Influencer marketing#LinkedIn strategy#Content strategy

Kate Busby
Fractional CMO at Quiet Edge
Focus area:
#GTM strategy#EdTech marketing#Demand generation#AI marketing#Growth strategy
Kate Busby is a fractional CMO and founding member of Quiet Edge who works with EdTech and SaaS companies on growth, positioning, go-to-market strategy, and AI-enhanced marketing systems.
Busby combines marketing fundamentals with experimentation, data, and AI across demand generation, product-market fit, campaign performance, and international growth. At Quiet Edge, she also develops practical frameworks for early-stage companies working toward stronger market validation and scalable growth.

Jonny Butler
Fractional CMO
Japan
Focus area:
#B2B SaaS#GTM strategy#Positioning#Demand generation#Marketing execution
Jonny Butler is an independent fractional CMO and marketing advisor for early-stage B2B SaaS companies. He previously held marketing leadership roles at Leadfeeder and OneUp Sales in Europe and Japan.
Butler works with founders on ICPs, positioning, messaging, GTM motion, demand generation, and hands-on execution. His operating background includes helping scale Leadfeeder and leading marketing at OneUp Sales, where he rebuilt positioning and grew marketing-sourced pipeline and revenue.
Connect with Jonny:

Pascal Ehrsam
Fractional CMO
New York, United States
Focus area:
#Startup marketing#GTM strategy#Brand strategy#Marketing leadership#Tech startups
Pascal Ehrsam is a New York-based fractional CMO with more than ten years of experience advising tech startup founders. He previously worked at agencies and as a full-time CMO for global brands and startups.
Ehrsam works with founders on marketing leadership and hands-on execution, drawing on experience across fintech, HR tech, ecommerce, social media, proptech, and electronics. His practice spans launches and scaling, team building, prioritization, brand development, and aligning marketing investment with startup needs.
Connect with Pascal:

Tina Louise
Fractional CMO
Barcelona, Spain
Focus area:
#Growth marketing#Brand strategy#Positioning#Health & wellness#Marketing education
Tina Louise is a fractional CMO and marketing lecturer with two decades of industry experience, including marketing work at Airbnb, MyFitnessPal/Under Armour, Adobe, and Ogilvy worldwide.
Louise works with health, wellness, and fitness brands across positioning, growth, digital marketing, demand generation, and content strategy. Alongside fractional leadership, she teaches and mentors founders and marketers, bringing operating experience from global brands and high-growth companies into both roles.
Connect with Tina:

Patricia Gunter
Founder & Fractional CMO at Duplia Marketing
Georgia, United States
Focus area:
#Industrial B2B#Marketing strategy#Positioning#Business transformation#Marketing leadership
Patricia Gunter is founder of Duplia Marketing, where she provides fractional CMO leadership to industrial B2B companies. She has 25 years of experience working with industrial organizations worldwide.
Gunter's work brings executive ownership to industrial marketing, aligning strategy with positioning, commercial priorities, and execution. Her background also spans pricing and business transformation, helping her approach marketing as part of the wider operating model rather than an isolated communications function.
Connect with Patricia:

Pete Nourse
Founder & Fractional CMO at GTM Fractional CMO Services
Florida, United States
Focus area:
#B2B technology#Cybersecurity marketing#Positioning#GTM strategy#Channel marketing
Pete Nourse founded GTM Fractional CMO Services after more than 25 years in B2B technology marketing, including senior marketing roles at Bitdefender, nCipher, EDS, Veriato, and Asigra.
Nourse has spent much of his career in cybersecurity and technology marketing. His fractional work covers positioning and messaging, marketing planning, lead generation, ABM, team leadership, customer marketing, and MSP channel development, focusing on keeping marketing closely aligned with sales.
Connect with Pete:

Mark Evans
Fractional CMO at Marketing Spark
Toronto, Canada
Focus area:
#B2B SaaS#Positioning#Marketing strategy#GTM strategy#Startup marketing
Mark Evans is founder of Marketing Spark, a fractional CMO and strategic advisor who has led marketing inside VC-backed startups. He now works with B2B SaaS founders and CEOs on growth strategy.
Evans helps businesses identify what holds their marketing back, from unclear positioning and target customers to weak differentiation and growth priorities. Drawing on startup experience, he advises SaaS leaders, accelerators, and entrepreneurs on turning individual tactics into a clear strategy.
Connect with Mark:

Kyle Hamer
Fractional CMO/CRO at Hamer Marketing Group
Focus area:
#B2B SaaS#Revenue strategy#AI transformation#GTM strategy#Revenue operations
Kyle Hamer runs Hamer Marketing Group as an AI-native fractional CMO/CRO after two decades across sales and marketing leadership at On Center Software, ConstructConnect, Asite, and hh2.
Hamer approaches marketing from a revenue-operator perspective, connecting pipeline accountability with GTM systems, RevOps, attribution, and AI. His fractional work focuses on integrating AI into existing revenue motions while keeping marketing and sales tied to measurable commercial outcomes.
Connect with Kyle:

Casey Slaughter Stanton
Founder & CEO at CMOx
Philadelphia, United States
Focus area:
#Fractional CMO leadership#Marketing strategy#CMO development#Executive marketing#Marketing operations
Casey Slaughter Stanton is founder and CEO of CMOx, the Fractional CMO company, where his work centers on marketing strategy and developing fractional marketing leaders and teams worldwide.
Stanton built CMOx around fractional executive marketing leadership and has trained and supported fractional CMOs through the organization. His work emphasizes moving businesses beyond tactic-led marketing toward executive-level strategy, while CMOx also develops and places marketers working in the fractional model.
Connect with Casey:
Selection Methodology
I selected the leaders on this list based on their relevance, demonstrated expertise and impact, professional credibility, and active service offerings in the field.
I look for evidence such as leading meaningful initiatives, delivering results, providing ongoing operational leadership, developing influential ideas or practices, publishing or teaching, and other contributions that demonstrate impact.
Further Reading
Looking for fractional marketing leadership in other cities? Explore our guide to fractional CMOs in Denver for experienced marketing leaders, or discover fractional CMOs in Austin who can help grow your business.
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