Sadlowe Consulting
Better ideas for growth
Sadlowe Consulting partners with founders, executives, and investors at key inflection points — when strategy, product, and technology decisions matter most.We work across strategy, go-to-market, product, and emerging technologies to help organizations navigate complexity, build durable systems, and scale with intention. Our approach is operator-led, informed by building, investing, and operating across startups, healthcare, enterprise SaaS, and frontier technologies.
Sadlowe Consulting
What we do
Strategy, operating support, and execution — where it counts
We engage flexibly based on what the moment demands — as advisors, operators, or embedded partners.
Brand & Narrative Strategy
Clarify positioning, storytelling, and messaging that aligns product truth with market reality — especially during launches, pivots, or growth phases.
Go-To-Market & Growth Systems
Design GTM strategies and operating systems that drive acquisition, retention, and long-term value — grounded in how customers actually behave.
Product & Innovation Strategy
Support product leaders and operational teams in applying new technologies — including AI — responsibly and effectively inside real workflows.
Founder & Executive Support
Act as a thought partner to founders and leadership teams navigating early-stage decisions, scaling challenges, or organizational transitions.
Operating & EIR Engagements
Serve as an embedded operator or Entrepreneur-in-Residence (EIR) with startups, venture funds, and academic institutions — helping teams move from zero to one.
Portfolio & Fund Advisory
Partner with venture capital and private equity firms on portfolio support — helping teams sharpen strategy, strengthen gtm, and apply new technologies as they scale.
Sadlowe Consulting
Who we work with
Founders and teams building what’s nextWe partner with early-stage founders moving from idea to product-market fit, growth-stage teams navigating scale and technological complexity, enterprises and academic medical centers exploring innovation or new business models, and investors seeking hands-on operating support across their portfolios. Our experience spans healthcare, AI, enterprise, consumer, data, and frontier technologies.
Sadlowe Consulting
Who we are
Sadlowe Consulting is led by Jonathan Sadlowe, an operator, investor, and Entrepreneur-in-Residence with experience building companies across technology, healthcare, and emerging systems. He leads Gossamer Capital, Signal21, and works with healthcare ventures including ImageAssist and IRIS Biopsy as an EIR at Vanderbilt Health. His background includes CMO at Spacious (acquired by WeWork), Marketing Manager at Google Cloud, and award-winning strategy roles at Wieden + Kennedy and BBH. Jonathan partners with founders, venture/private equity funds, enterprise teams, and academic medical centers to help navigate growth, complexity, and innovation.
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Sadlowe Consulting
Get in touch
📥 Reach out via email: [email protected]
Or send us a message 👇
🚀 Want to work at Sadlowe Consulting?
We’re always on the lookout for exceptional talent. Send us your resume. 📝
Fractional CMO / Operating Partner
Full-Time Impact
Fractional Commitment
Not every company needs — or is ready for — a full-time CMO. But many need senior operating leadership to navigate growth, product-market fit, and go-to-market complexity. As an Operating Partner, Jonathan Sadlowe works hands-on with founders and leadership teams to set strategy, build durable growth systems, and guide execution across marketing, product, and technology — without the overhead of a full-time executive. Engagements often begin as a Fractional CMO role and evolve into broader operating support as the business scales.
A typical Fractional CMO engagement consists of the following activities: 👇
Why work with Jonathan?
As the first hire and CMO at Spacious (acquired by WeWork), Jonathan has firsthand experience taking companies from zero to exit. He has worked with dozens of startups on growth and go-to-market strategy, led award-winning multi-channel campaigns for global brands, built enterprise growth programs at Google Cloud, and now operates across early-stage ventures as both an investor and operator through Gossamer Capital. Known for his adaptability and hands-on approach, Jonathan integrates seamlessly with teams of all sizes — working alongside founders and leadership teams to navigate growth, complexity, and critical inflection points with clarity and momentum.
Ready to chat?