Stop Waiting for “Ready.” Start Crossing the Atlantic Chasm.
Most B2B founders burn capital marketing to the wrong people in the wrong way. We help you identify your Early Adopters and execute a high-speed launch into new territories and verticals.
The Challenge
Expanding Across the Atlantic Is a Whole New Chasm
Launching in a new territory isn't just a geographic move — it's a total re-entry into the “Chasm.” Many B2B founders assume that success in the UK guarantees success in the US (and vice versa). In reality, you are often starting from zero.
Zero Brand Equity
Your hard-earned reputation doesn’t cross borders. In a new market, nobody knows who you are.
Zero Local Social Proof
Logos and testimonials from your home market carry little weight with pragmatic local buyers.
Whole Product Gap
Local integrations, compliance, support expectations — your product isn’t ‘whole’ in the new territory.
We've Been There. We Know the Way.
At Aventyr, we help B2B vertical tech founders navigate the complexities of transatlantic expansion. With over 15 years of experience scaling B2B vertical software businesses across the US, we provide the strategic blueprint and tactical execution required to secure early wins and build a sustainable beachhead.
We don't offer theoretical frameworks from the sidelines. Our methodology comes from lived experience — bootstrapping, scaling, entering new markets, and ultimately achieving a successful acquisition.
Discover our methodology
Our Approach
A Proven Framework for Market Entry
Our methodology combines battle-tested frameworks with real-world operational experience. No theory. No guesswork. Just what works.
The Beachhead Strategy
We don’t believe in “boiling the ocean.” We identify the specific vertical niche where your solution is the only viable answer to an “intractable” local problem. By focusing your limited resources on a single, winnable segment, you build the dominance needed to expand outward.
The Moore Framework
We apply “Crossing the Chasm” principles to ensure you move from visionary early adopters to the pragmatic early majority in your new market. This means building the complete “whole product” that pragmatist buyers demand before they’ll commit.
Operational Reality
From localized value propositions to building “boots on the ground” teams, we provide the field-tested experience that consultants can’t teach. This isn’t theory — it’s the operational playbook from 15 years of doing exactly this.
The Aventyr Focus
How We Help You Win
Four focused areas of expertise designed to take you from market curiosity to market dominance on the other side of the Atlantic.
Market Readiness
Auditing your “Whole Product” to ensure it meets the local expectations of the US or UK buyer. We identify the gaps in your offering — integrations, compliance, support, and positioning — so you launch with confidence, not assumptions.
Beachhead Identification
Identifying the specific vertical segment where you can achieve a dominant #1 position quickly. We pinpoint the niche where your solution solves an “intractable” problem — and where pragmatist buyers will rally behind you.
GTM Execution
Helping founders secure their first 5–10 “Visionary” local customers to build social proof. We develop the go-to-market playbook — from outbound strategy to partner channels — that turns early wins into sustainable momentum.
Founder Mentorship
Direct advisory from an exited founder who has lived the 15-year transatlantic journey. Not theoretical consulting — real, candid advice from someone who has bootstrapped, scaled, expanded internationally, and achieved a successful exit.
Trusted by Founders & Investors
The Results Speak for Themselves
From UK-to-US launches to investor-backed scale-ups, here's what happens when founders work with Aventyr.
“We'd built a strong UK business, but entering the US market required a completely different playbook. We initially approached it in a traditional way and ended up with plenty of theory but very little traction. Kevin rolled his sleeves up with us. He helped us identify our 'Visionaries' first, sharpen our positioning for a US audience, and leverage the right networks to create genuine early conversations. We now have a defined go-to-market strategy, clear direction, and most importantly a live sales pipeline. The difference between theory and execution has been transformational.”
Rich Sinclair
Co-CEO, CTRL Commerce
“Kevin McGirl gave me my first break in the tech industry and taught me the art and science of scaling vertical markets. Fast forward to today, Continuum is having stellar growth in the US and our investors told us that it was too early to look at international expansion and to concentrate on the home market. But when I heard that Kevin was heading back to the UK, I had to jump on this opportunity. Kevin McGirl could build a B2B vertical market on the moon!”
Alex Witcpalek
Founder & CEO, Continuum AI
Top 1% fastest growth company
“Cracking the US market remains the holy grail for many UK software founders, but it's far from straightforward. Kevin has first-hand experience taking a UK start-up into the US market and scaling it through to a successful exit. Founders thinking about expanding into new geographies or verticals would benefit from his practical perspective on how to approach it in a disciplined way.”
Anthony Platt
Partner & Head of Technology M&A, Cavendish
“Cracking the US market remains the holy grail for many UK software founders, but it's far from straightforward. Kevin has first-hand experience taking a UK start-up into the US market and scaling it through to a successful exit. Founders thinking about expanding into new geographies or verticals would benefit from his practical perspective on how to approach it in a disciplined way.”
Anthony Platt
Partner & Head of Technology M&A, Cavendish
“I was introduced to Kevin McGirl by an investor to help our team establish a GTM strategy. We were intimidated by the task of tackling a huge potential market served by established legacy providers and were told by a number of agencies that we would need to raise funding to support a substantial marketing budget. In contrast, Kevin approached our dilemma with a bootstrapping founder mindset. He worked with us to fully understand our competitive differentiation. He then shared the principles of Crossing The Chasm and the need to focus on gaining an initial beachhead with early adopters. Rather than attempting to boil the ocean, we are now 100 percent focused on a clearly defined ICP in a specific geographic region and are launching with confidence.”
Simon Eyre
Co-Founder, Qoka
“Aventyr's 'Early Adopter Radar' framework totally changed how we viewed our roadmap. This is our first start-up and with Kevin as our coach, we stopped building for everyone, narrowed our focus, and started to deliver value for a specific vertical market. He introduced us to the concept of visual reconnaissance, which completely redefined how we spot our early adopters. The Bath Entrepreneurs programme has given us an amazing opportunity to learn from a seasoned, exited founder. Having Kevin as a mentor has been an absolute game changer for our launch.”
Kaushik Akella & Ethan Donkor
Co-Founders, Voxaris AI
“When we were first considering launching Prima in the US market, Kevin McGirl was the first person we called. He had already proven that a UK B2B tech business could launch and scale successfully 'across the pond'. By following Kevin's path and playbook, we were able to quickly gain traction and still maintain our growth in our home market.”
Maria Johnson
Head of Business Development, Prima Software North America
“Cracking the US market remains the holy grail for many UK software founders, but it's far from straightforward. Kevin has first-hand experience taking a UK start-up into the US market and scaling it through to a successful exit. Founders thinking about expanding into new geographies or verticals would benefit from his practical perspective on how to approach it in a disciplined way.”
Anthony Platt
Partner & Head of Technology M&A, Cavendish
Leadership
Founded on Experience, Not Theory
Aventyr Partners is led by people who've walked the path — founding, scaling, and exiting B2B software businesses across international markets.
Kevin McGirl
GTM Coach & Exited Founder
After co-founding and scaling sales-i (acquired by SugarCRM) across both UK and US markets over 15 years, Kevin now helps the next generation of B2B software founders navigate international expansion with battle-tested playbooks and candid, operational advice.
FAQ
Frequently Asked Questions
Everything you need to know about working with Aventyr Partners.
B2B vertical software companies at the growth stage, typically with proven product-market fit in their home market (UK or US), looking to expand transatlantically. We work directly with founders and leadership teams who are serious about international growth — not just exploring it theoretically.
We’re not traditional consultants producing slide decks from the sidelines. Our methodology is rooted in first-hand founder experience — 15+ years of building, scaling, and exiting a B2B software business across both UK and US markets. We bring operational playbooks, hard-won lessons, and hands-on guidance that only comes from having done it.
The short answer is no. In fact, we believe most founders wait too long. There’s a proven path to dramatically accelerate growth and build a competitive moat by expanding internationally before you think you’re ready — and we help you do it with a structured, risk-managed approach using the beachhead strategy.
Every engagement begins with a Market Readiness audit to assess your “Whole Product” for the target market. From there, we work together to identify your beachhead segment, build a localized GTM strategy, and support you through securing your first visionary customers in the new market. Engagements are tailored — there’s no one-size-fits-all.
We specialize exclusively in UK-to-US and US-to-UK expansion for B2B software companies. With presence on both sides of the Atlantic, we bring local market knowledge, networks, and the cultural nuance that makes or breaks a transatlantic launch.
Timelines vary depending on your product, market readiness, and target segment. However, with a focused strategy and disciplined execution, we typically help founders secure their first 5–10 local visionary customers within 6–12 months of entering the market. The key is ruthless focus — not trying to boil the ocean.
Ready to Expand?
Let's Build Your Transatlantic Growth Strategy
Whether you're a UK founder eyeing the US market or a US company looking to expand to the UK, we'd love to hear about your ambitions and explore how we can help.