Keystone Conversion Systems

Get a top CMO without the cost

WE GUARANTEE POSITIVE MARKETING ROI WITH AI-ACCELERATED FRACTIONAL CMOS

IN 4 MONTHS OR WE WON’T BILL YOU AGAIN UNTIL WE DO

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We've done this for 26 Years

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Does This Sound Like You?

If you answered “yes” to any of these, we need to talk ...

• Hired a marketing leader who can design anything except a funnel that converts?

• Tried everything but marketing still feels like an expensive guessing game?

• Seeing revenue stall while your costs keep climbing?

• Worried you're paying more to get customers than they're paying you?

• Got traffic but barely anyone’s clicking, booking, or buying?

• Betting the farm on SEO while Google’s AI gets all the views and you no clicks?

• Tired of juggling multiple contractors who promise big but deliver little?

• Too many tools and manual tasks making your marketing harder, not smarter?

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Some of the RESULTS our clients got:

from 50 reviews
Peter Lindmoser
Peter Lindmoser
CEO at Montestyria
Apr 12, 2024

Standing out in the hyper-competitive hotel market is hard enough, but positionning a new luxury chalet resort without any brand recognition during covid is downright frightening. We tasked KCS with refining our value proposition, making our mission visible and optimizing our SEO so that our ideal customers would instantly find + recognize us and inquire further.

Kai and his team crafted a differenciated brand identity and designed a website that skillfully helps visitors discover why they should book, then facilitates that progress with a high-converting sales funnel.

Despite the difficult times, Montestyria's launch and continuous operations are both sucessful and profitable, and all of it without resorting to paid advertising. We regularily reach out to KCS to add features and they deliver every time.

Thomas Galharague
Thomas Galharague Founder, Bordeauxfood
Apr 2025

When my clients — mostly restaurants and food manufacturers — froze or downsized their advertising budgets during the pandemic, I lost most of my marketing business overnight. And since no revenue was coming in, I was outright scared to spend my savings on prospecting. What if it bombed?

Luckily, Kai had just launched his new fractional CMO service. When he explained it at a networking event, it sounded too good to be true: access to a customer acquisition specialist with decades of experience for less than what I'd normally spend on ads? But his system made sense and so I just went for it. Kai went on to turn things around step by step.

First, he analysed who still had money and what they actually wanted, then helped me reposition my offer and built an automated sales process to convince people to buy with less time and effort than I had ever spent chasing clients on my own.

Within two months, I had signed about 10 new deals, amongst them a recurring segment on France Bleu radio, as well as a partnership with Les Boxeurs de Bordeaux — something I couldn’t have imagined before.

Now, with Ads to accelerate the process, the prospects just keep coming. I’m not exaggerating when I call Kai my “guardian angel”.

Stefan Scholz
Stefan Scholz Co-founder at The Fundmakers
Mar 2, 2025

I’m cross with myself for not hiring Kai years ago – it would have saved us significant time, money, and frustration.

At The Fundmakers, we leverage decades of investment banking experience to facilitate the creation of specialized investment funds and ETFs. But despite our expertise, clearly communicating this complex offer to the right kind of prospect and converting them proved surprisingly difficult.

To fix that, we had invested into a top CRM, but out of the box it just wouldn’t do: leveraging it was too complex, learning how to customize it for our needs too time-consuming.

Kai provided an expert solution: fearing we would lose credibility if he oversimplified our message, he fine-tuned our value proposition for our admittedly limited customer base, then improved the targeting efficiency of our efforts by building automations and workflows into our CRM.

A couple weeks later, complex tasks such as lead scoring, pipeline management, and automated email campaigns were running with minimal manual intervention.

As a result, our two-person team achieves greater operational efficiency and improved client acquisition, while reducing administrative effort significantly and we are now offering the full value chain for launching specialized investment funds across Germany, Luxembourg, Austria, and Liechtenstein.

For any firm desperate to build automations or effectively sell complex services, I recommend Kai without hesitation.

Annabelle Jacquier
Annabelle Jacquier Directrice Culture Service, McDonald's France
Feb 26, 2024

We had spent months searching through consulting firms and agencies to build and sell a digital training platform for our 2000+ franchised restaurants in France. Every bid ended the same way: frustration and wasted time. Nobody fully grasped our needs and situation.

But Kai, instead of pushing his service, actually listened when we told him why his initial proposal wouldn’t work. I had never seen somebody scrap an entire presentation during a meeting before this, but he just asked us these really unexpected questions and designed a custom solution for us live, whole process laid out on a paperboard.

We greenlit the €180,000 project right then and there.

Once underway, Kai built a team that handled everything — strategy, sales, marketing, and implementation. We successfully deployed the system to all our franchises on time, improving service and customer experience nationwide, but more importantly, generating direct revenue from our franchisees who embraced the platform enthusiastically.

If you're frustrated by agencies that are quick to push their “off the shelf solutions” to anyone who’ll buy, instead, bring Kai on board. He really came through.

Laetitia DeDoncker
Laetitia DeDoncker Acting Head of Sales Enablement, Lyreco Group
Apr 5, 2024

We had lost €250,000 in the first quarter alone. Yes, marketing brought in lots prospects, but many of them turned out to be fraudsters, exploiting our end-of-the-month billing policies to impersonate our clients, ask for deliveries, then run.

As a result, HR and Legal pushed aggressive anti-fraud checklists, but our sales reps just ignored them. Management didn’t understand. They assumed the sales team lacked discipline and pushed for harsher enforcement and testing. As friction grew, performance suffered, and Lyreco still lost thousands a day in unpaid bills.

When I brought in Kai, he insisted on conducting an audit first, revealing the problem wasn’t incompetence — it was fear. Our salespeople, paid heavily on commissions, feared insulting potential customers and were just quietly hoping their orders were legitimate.

What they needed was a morale boost and a safe, non-threatening way to qualify prospects without risking their livelihood.

His unconventional solution: a gamified, internal marketing campaign which used clever storytelling, practical scenarios, internal email sequences and in-app treasure hunts directly linked to commissions. He just sidestepped the entire “top down orders and compliance” issue and instead, sold our reps on the new way.

Prospect qualification improved dramatically. So did sales and morale.

If you ever need to troubleshoot and turbocharge a sales pipeline, call Kai. He gets it.

Romain Diedrich
Romain Diedrich CEO, Shared Values
Feb 6, 2024

When I first called Kai, I threatened him with a lawsuit. One of our local marketing agencies, Kaizen, was being overshadowed by his personal brand on LinkedIn and I wanted him to change his name. 20 minutes later, I hired him to overhaul our branding instead.

At that time, our business was stuck handling hordes of demanding, low-budget accounts that left us overwhelmed, margins shrinking, with no time to refine our offer. Honestly, it felt like the business owned me rather than the other way around.

Kai’s audit of our customer acquisition pipeline, market positioning, and competitors revealed which 20% of customers brought in 80% of our revenue. He then helped us rebuild our online presence — from website and funnels to email campaigns and advertising — to target them.

What I really loved about him was his style — refreshingly different from the dusty, conventional consulting we usually see in Europe. The way he blends neuroscience, data and psychology to craft marketing that attracts the right customers and deters the wrong ones is unique. And it works: after just a few short months, we increased our margins, reduced overhead, and, most importantly, regained control of our business and our lives.

If you're seeking a fresh, scientifically-grounded perspective on your branding and customer acquisition strategy, call Kai.

Alexandre Beauvois
Alexandre Beauvois Co-founder at Owenza
Feb 10, 2025

When we started Owenza, we thought being great at organizing events was enough. We had cutting-edge technology – including holograms – and had invested in a slick website, yet traffic was low, and leads were sparse.

After dropping our previous agency, a friend recommended Kai, so we took the leap. He looked over our marketing and quickly identified what was wrong: we were selling "events" instead of the outcomes people actually wanted — like pitching plane tickets instead of dream vacations. Turns out nobody wakes up thinking, “I can’t wait to spend $30,000 on a gathering.”

After digging into local market needs, he realized many large companies in our area were struggling with internal conflicts and low productivity, so he re-positioned Owenza around team-building experiences designed to enhance cohesion and performance. As soon as the new funnels were up, he targeted their managers with marketing campaigns.

The impact was immediate — our web traffic exploded so dramatically we thought it was a cyberattack! Instead, it was just genuine interest. Leads poured in, and demand grew so fast we even had to hire more staff to keep up.

Kai has this uncanny ability to look at a website and immediately pinpoint everything that’s stopping people from becoming customers. He turned things around faster than we thought possible. The insights from the audit alone were worth the price of admission!

Gerald Pachler
Gerald Pachler Founder, geraldpahr.com
Mar 1, 2024

Men’s shirts have been tailored the same way forever, frustrating us with untucking when we raise our arms, bunching up when we sit down, and hiding rather than highlight our bodies. At Gerald Pahr, I solved these problems by redesigning shirts to follow men's main muscle groups, creating a fit that moves like a second skin. But retail channels were unwilling to take risks with a relatively unknown brand.

After hearing about Kai from another Austrian business, Montestyria, I decided to reach out. He understood it wasn’t about the quality of our shirts; it was about positioning and messaging. Instead of trying to convince retailers, he shifted focus to our end customers: CEOs, golfers, athletes, and aging men who still wanted to look attractive, powerful, masculine and stylish — and reworked our entire marketing to clearly communicate our unique value proposition.

This made it way easier to convince 5 retailers to feature us in the sports and casual elegance sections instead of the budget suit racks. But more importantly, Kai also created an e-commerce funnel for our ICP, then drove the right traffic to it with marketing campaigns. By combining easy ordering with a guarantee that made purchasing a €190 shirt online risk-free, we soon had a thriving online channel that saved us when Covid struck.

If you're struggling to bring your innovative product to the market, Kai is the person who can turn brilliant ideas into real-world commercial success.

Sandrine Knellesen
Sandrine Knellesen Sales Director, Abilways
Apr 8, 2024

Staying profitable by selling workshops and courses to small groups at our Paris school was becoming nearly impossible. We needed to start winning major corporate bids for our e-learning solutions, or we'd soon need another bailout.

After Sanofi rejected all bidders — including us — in a nationwide tender, we brought in top talent to back us up for round two. Abilways went all-in: massive presentation, elaborate pitch deck, even a personal speech from our CEO. But Sanofi's directors weren’t buying it.

Kai, our new fractional CRO, had stayed quiet until Sanofi grumpily asked who 'that guy' was. He calmly posed a question nobody expected: ‘Sanofi has vast resources and an entire internal e-learning department—why are you looking for outside help? What’s stopping you from solving this internally?’

We thought Kai had just sunk us, but instead, Sanofi’s directors opened up, brainstormed their underlying issues openly, and ultimately clarified their true needs. Kai took what felt like 30 seconds to summarize their problem. After nodding eagerly, they asked: ‘Can you build that for us?’

I’ve never seen a sales strategy this powerful.

Afterwards, I relied on Kai for months to modernize pitch decks and sales strategy across our entire group. Since then, Abilways has grown into a multi-specialist training provider with a turnover of approximately €50 million annually, training over 20,000 individuals each year.

Clara Morel
Clara Morel Founder, Locomotiv’
Mar 15, 2024

After Covid, my co-working space, Locomotiv’, located in the heart of Bordeaux, stayed empty. Overhead was high and marketing couldn’t get clients, so I reached out to Kai. He quickly saw that freelancers didn’t care about the prestigious décor — designed to impress potential customers — if they couldn’t get prospects to show up.

So instead of renting desks, we changed our USP to ‘business centre’: used our network to secure projects, then distributed the work among our members. He also advised us to transform some of our meeting rooms into fully equipped ‘Startup Pods’. Entire teams moved in, adding monthly rent to our recurrent membership revenue.

But the game-changer was simplifying our marketing message. Our original artsy branding confused potential customers — some even thought we were a train station! Kai’s new positioning clearly reached the right crowd. After just a few campaigns, Locomotiv’ was full again!

If your business feels stuck or misaligned, don’t hesitate to ask Kai to become your fractional CMO. He’ll get you results!

Anaïs Fournier
Anaïs Fournier CEO, ADM
Apr 2025

Who doesn't dream of going viral on social media? Because of Covid, we lost all walk-in traffic, so online essentially became the only lifeline for our business — but sponsoring posts was expensive and when we tried it ourselves, results were frankly unreliable.

Kai changed all that. He was already delivering the goods on brand strategy with us so I half-jokingly asked him if he could run high-converting marketing campaigns — but without any Ad budget to speak of. He did some research, then deployed a series of “unusual” videos and posts where my competitors were already heavily advertising and somehow managed to organically siphon their prospects into our funnel.

I don’t know how, but we went viral six times in a row on both LinkedIn and Facebook, generating tens of thousands of views, hundreds of new connections, and, most importantly, about a dozen new client meetings every month.

It might sound cliché, but Kai literally saved my company. I'm officially a fan — and you should become one too!

Curtis Bendt
Curtis Bendt CRO at MarketJoy
Feb 10, 2025

The lead-generation market is saturated by countless commodity providers, making it really hard for a company like MarketJoy to stand out. Worse, Covid left many customers churned and burned by unqualified and sometimes downright scammy competitors, ruining the entire industry’s reputation. But as a bootstrapped company, we couldn’t just throw money at Ads or hire a six-figure CMO to grow. That’s why we reached out to Kai and his fractional marketing team.

He started with an in-depth audit including market sentiment analysis and used the insights to rebuild our value proposition – making it simpler, clearer, and most importantly, differentiated. After a complete re-branding, he built CRM workflows and custom AIs to streamline content production and automate our sales pipeline.

When he launched a targeted marketing strategy, combining thought leadership, strategic social media presence, and powerful outreach email campaigns, our brand skyrocketed: we landed over 350,000 views on CNN, grew our LinkedIn followers by 6,000+, achieved email open rates above 55%, and nearly tripled our website traffic. And he kept this up, every single day. Result? We increased our closing rates from 12% to 20%, nearly doubling sales velocity, and, one year in, we received Series C funding. Now investors regularly reach out with offers to buy the company.

But Kai isn’t just good at marketing – he actually knows how to sell the offers he creates. I brought him onto several high-stakes sales calls, and every time he impressed prospects with visual decks illustrated by AI and mind-maps made especially for that meeting. His passion for genuinely helping clients was so persuasive that once our marketing was fully operational, I half-jokingly requested he permanently join our sales team!

Once close to invisible, we now consistently secure 10+ nurtured leads per month. If you want your branding to cut through the noise and your offers to actually close, hire Kai as your fractional CMO immediately.

Stefanie Schwaighofer
Stefanie Schwaighofer CRM Marketing Manager, United Domains
Mar 27, 2025

At United Domains, we offer domain registrations at highly competitive prices – often through aggressive promotions. But those razor-thin margins meant we needed to automate nearly everything to stay profitable.

When we met Kai, our CRM only had a marketing module, leaving our sales process fragmented and disconnected. We desperately needed an integrated upgrade but simply didn’t have the required automation expertise in-house.

Kai and his team seamlessly integrated our marketing and sales modules into a single, streamlined system, built high-converting landing pages, automated email campaigns, and designed funnels that reliably bundled upsells and bumped offers — effectively increasing our conversion rates and average cart value.

We finally had an automated sales and marketing system optimized for profitability. And to top it all off, they trained us thoroughly so we don’t have to call them every time we need to update a campaign.

I really profited from Kai’s technical know-how combined with his sales and marketing experience. Thank you so much and looking forward to continuing our work with real pros!

Marlène Duval
Marlène Duval Founder, Marlen Immo
Apr 10, 2024

Marlen Immo was a typical real estate agency — and in Bordeaux’s high-demand, low-supply market, that was the problem. Competitors would pop up everywhere, cutting commissions and underbidding us at every turn. And since no actual license is required for brokers, even freelancers working out of a Starbucks with no overhead joined the feeding frenzy — making it impossible for us to compete on price.

But after hiring Kai it turned out, we didn’t need to. He analysed local customer sentiment, found lots of frustration with these 'amateurs' and rebuilt our offer as a 'done-for-you-so-you-don’t-have-to-do-it-again' service. By working closely with lawyers, notaries, and government agencies, we were able to both streamline and expedite the process — with reduced taxes and a conformity guarantee to boot!

As for marketing? Unsurprisingly, promoting a great offer is far cheaper than having to massively bribe algorithms on Facebook. Even with above-average prices, our click-through rates and conversions soared, earning us a place on Bordeaux’s 'Best Agencies' list and an average 4.9-star satisfaction rating.

I can’t tell you how good it feels to charge premium prices and have customers happy about it! None of this would’ve happened if I hadn’t heard Kai on stage.

Kenneth Bourienne
Kenneth Bourienne Founder, Loboco
Apr 3, 2024

Launching an African food brand in France seemed like a sure thing. I had perfected recipes, secured factory deals, designed glass-jar packaging, and was ready to invest my life savings. But a friend of mine insisted I run it by Kai before the launch. His report showed I was heading straight into disaster: French customers saw African cuisine as greasy, unsophisticated, and unhealthy. Previous competitors had all failed, search volume was nearly zero, and testers said my meals looked unappetizing stuffed in transparent jars.

I felt like the rug had been pulled from under me, but Kai didn’t just save me from losing everything; he completely repositioned Loboco. Instead of fighting negative stereotypes, Kai leveraged my French-African heritage to elevate our offering into sophisticated African-French fusion cuisine — traditional family recipes refined with French gastronomy techniques.

KCS also redesigned our labels to cleverly hide the cold meal’s appearance and included QR-code instructions for easy heating and plating at home. He then marketed it to the perfect target customer: housewives eager to impress their husbands and friends with novel and easy to prepare dishes after months stuck with fast food during Covid.

I was so relieved when Loboco’s soft launch was a resounding success. Kai really saved my bacon — pun intended!

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I Spent 26 Years Fixing Other People’s Funnels… Then Realized the Whole System Was Broken

I’ve built customer acquisition systems for the likes of McDonald’s, Crédit Agricole, Lyreco, John Deere… and for dozens of high-performing SMBs you’ve probably never heard of - companies like Élévatione, Montestyria, MarketJoy, Admiral Media, and Shared Values. Some of them were industry giants.

Others were two people with a dream, duct tape, and a deadline. Different sizes. Different problems.

But one thing always stayed the same:

They had no system to turn strangers into buyers — reliably, repeatedly, and fast enough to keep up with growth.

So that became my specialty.

I was the guy who built the engine behind the product.

The one who turned good ideas into booked calls, consistent cash flow, and new revenue on autopilot.

And for decades, I did it the “industry approved” way.

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More Companies

we've gotten results for

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The 100 Golden BBS

I’d follow every best practice: Run a full audit. Planned a 90-day roadmap. Tweaked landing pages. A/B tested headlines. Fixed SEO metadata. Optimized CTAs. Built email flows.

I called them the 100 Golden BBS for “Barely Better” Strategies. If done perfectly, each change would nudged conversion rates up by a bit.

Half a percent here. One percent there.

But in today’s market? It no longer enough — and worse, it takes months.

In 2025, Speed isn’t a luxury anymore. It’s the difference between growth and collapse.

Theoretically, my clients knew this. But when results take too long, even the smart ones started to panic - or worse, interfere.


You won’t believe this story:

My Client Literally Printed My Advice on Her Phone Case — Then Ignored It

One of my most memorable clients was from promising SMB in France.


I was brought in to rebuild their entire acquisition pipeline by leveraging the founders professional networking into a digital learning platform. A bit of a left-field strategy, but a great way to skirt around rising paid ads cost. At first, her tight budget made her second-guess every step of the process. Then one day, during our weekly workshop, she proudly showed me her new phone case. On it, printed in big bold letters, were quotes from our sessions, and at the very top the title read:

“Shut up and do what Kai says.”


We had a good laugh, followed the plan and the business started to scale.

New leads led to new hires with every growth target hit. She wrote me a glowing testimonial. Everything was steadily improving - until the same old pattern kicked in.

Impatience. Shiny Object Syndrome. Suddenly, the roadmap was “too slow.”

She wanted to launch a second project, even though the first one couldn’t run without her.

Worse, she ignored my warnings and left the country mid-COVID for a personal trip — and got promptly stuck in Caribbean quarantine with no way to manage her fledgling team.

You can probably see where this is going …

Leads dried up. The new hires panicked, then quit.

Because there was no automation, my client had no fallback. She nearly went bankrupt trying to do everything by herself. It set her back YEARS.

That’s When I Realized: The System Was the Problem

This is where most people would say “I told you so”. But I realized: It wasn’t her.

It wasn’t the strategy, either.

Things were simply moving too slowly. We were on the right road to riches, but the vehicle

we were using - this bloated, fragile “Frankenstack” of tools and tasks just needed too much manual labour.

And for the life of me, no matter how much psychology or neuroscience I applied, I couldn’t convince my clients to stay the course several months in. So I stopped. And I built something better.

At the time, GPT-3 was quietly making waves in techie circles - a full two years before ChatGPT would shock the mainstream.

But I knew instantly: This would change everything.


I then spent the next four years - and tens of thousands of dollars - building a fully integrated, AI-Powered Customer Acquisition System.

Speed Kills – your competition!

You see, the average response time to buying signals across B2B industries is 42 hours.

But conversion rates improve by a staggering 391% when this delay is shortened to under a minute. Moreover, 78% of all prospects buy from the vendor who reacted first.

I know what you’re thinking – “AI just generates generic garbage” or “Oh great, another SAAS-solution”. But that’s not it at all.

We’re not replacing the 100 golden BBS. Our P.R.O.S.P.E.R. system is built on 26 years of direct-response psychology, offer design, funnel strategy, and conversion science. We need this expertise to analyse your specific market opportunities, ideal customer, tweak your offer for better conversions, etc. That’s why this is a fractional CMO service.

But once we’ve done that, we’re using AI to fix all the inefficiencies in the customer acquisition process. That means everything is integrated and most importantly, immediate.

Our system doesn’t just generate leads. It qualifies and nurtures them, even books them right into your calendar, 24/7. 

No handholding needed. No more missed signals.

This is the SILVER BULLET you’ll one-shot the competition with:

A fractional CMO with an AI-Accelerated customer acquisition system – all backed by a performance guarantee.

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We help Companies

all day, every day

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But Let’s Be Clear: This Isn’t For Everyone

If you’ve wasted budget on agencies, burned through junior marketers, or asked interns to post blog articles into the SEO void in the hope that Google might send traffic again - we should talk.

If you want guaranteed marketing ROI, results in 4 months or less, and a system that will allow you to focus on fulfilment instead of chasing clients – we can build that for you.

And no “hard selling you” on the call, either – our performance guarantee requires that we only work with clients we can actually help. That’s why we’ll just ask you questions about your business, offer, and current market position to see if our system will work for you.

If it’s a match, we’ll demo just how fast we can get results by providing you with a full market + competitor audit in just 48 hours.

For free. This would take a mid-level consulting agency such as Mintel 1 - 3 months and cost you $3,000 or more. As for McKinsey or Deloitte? Don’t even bother unless you’ve got half a million to spare just to start.

But if you’re coming in with an empty pipeline and a plan to override our proven process with gut-or trend-driven ideas because “you’re the one paying the bill”?

Do us both a favour and go hire someone on Fiverr.

I’m not here to debate.

I’m here to deliver.

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