SIX Marketing
B2B Demand Gen Agency
Who SIX Marketing works with
SIX Marketing is a B2B Demand Gen Agency for midmarket, Series B+, and private equity-backed organizations generating $20M to $100M+ ARR in the US and UK. They work with companies in SaaS, technology, artificial intelligence, manufacturing, commercial construction, professional services, and marine industries. SIX Marketing's team is GTM OS Certified, trained in GTM Partners' proven GTM expertise, frameworks, and systems. Ideal clients typically have 50 to 250+ employees, an existing marketing team of 2 to 4 people, a sales team of 2 to 10 people, and are transitioning from founder-led to professionally managed revenue operations.
The GTM problems SIX Marketing solves
SIX Marketing addresses growth plateaus, revenue stagnation, and scaling bottlenecks caused by an over-reliance on founder-led sales. The agency solves persistent departmental fragmentation across sales, marketing, product, and customer success that leads to inconsistent sales performance, high customer churn, and lost deals. They fix weak market positioning, tactical execution gaps, and the inability to connect GTM spend to measurable revenue outcomes. By applying the GTM OS framework, SIX Marketing systematically evaluates the client's commercial operations to align leadership, systems, and execution, replacing tactical silos with scalable playbooks across inbound, outbound, intent signals, paid ads, and SDR execution.
Track record
SIX Marketing has delivered go-to-market services for clients including Kyocera, NOVIPAX, ProEst, Autodesk, STEMREGEN®, Kersia Group, Ocean Power Technologies, Inc., and Play Bigger.
In their own words
When growth stalls and revenue declines, even top-performing companies feel the pressure. SIX helps business leaders break through plateaus, uncover hidden obstacles, and reignite.
Why hire SIX Marketing instead of a traditional B2B demand gen agency?
SIX Marketing is a GTM OS Certified Agency Partner. Its team is trained in GTM Partners’ proven GTM expertise, frameworks, and systems — the GTM Operating System™. Instead of executing campaigns in isolation, SIX Marketing connects the work to your GTM strategy: aligning marketing, sales and customer success around the same market, message and metrics, and guiding your leadership team from diagnosis to execution.
Most agencies sell output — more campaigns, more content, more leads. A GTM OS agency starts with the diagnosis, so the work it delivers moves the numbers your executive team is measured on.
You hire the result, not just the output.
More than certification
As a GTM OS Partner, SIX Marketing operates inside a franchise-style model with ongoing access to:
- GTMee AI — trained on the full body of GTM Partners IP.
- Coaches & masterminds — peer-led sessions with the GTM Partners expert community.
- Direct access to Sangram & Bryan — the founders of GTM Partners and creators of the GTM OS™.
- Specialist network — they can pull in other certified experts to solve your specific challenge.
- Frameworks, templates & tools — proven playbooks that guide you and your team toward the outcomes you’re after.
Partners pay a monthly or annual license to stay active. They're invested — and they stay sharp.
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GTM Partners doesn't charge buyers or take a cut of engagements. Partners pay GTM Partners for certification, training and tooling. Profile summaries are compiled from each partner's marketplace listing and ideal-client profile.