Since 2005
One Accountable Agency of Problem Solvers
Cut 30%+ ad waste. Align spend to P&L. Drive 2–3x revenue conversion. If ads aren’t the bottleneck, we find the hidden leverage in strategy, execution, or systems to unlock growth.
We diagnose your growth bottleneck, then fix it
Start with one pillar service; experience tangible results.
Strategy & Diagnostics
{The Blueprint}
Map every ad euro to real revenue.
Fund LTV drivers; cut vanity channels.
Pinpoint exit-point losses; unlock upsells.
Auto-detect 12+ hidden revenue leaks.
A partner who delivers, and proves it.
Digital Marketing & Tech
{The Engine}
Optimize ads for P&L, not clicks.
Convert browsers into 3.2x more buyers.
Win market share with data-backed counterplays.
Fund only revenue drivers: performance channels + SEO/AIO.
Close the loop: tie ad spend directly to closed deals.
People & Execution
{The Accelerator}
End strategy drift across all leadership levels.
Maximize team output, not just activity.
Ship growth initiatives, with clear ownership.
Slash approvals: 3 weeks → 4 days.
Eliminate friction across people, process, and tech.
Client Case Study A: Leads
B2C/B2B Customer Acquisition Engine That Drives Revenue
We don’t “run” campaigns.
We build customer acquisition systems.
Expand: What we Achieved
To build a reliable “production line” of high‑value customers. Scaling volume without inflating CAC or sacrificing quality. In Greece’s hyper‑competitive B2C market, we transformed digital acquisition from a cost center into a scalable revenue engine, delivering predictable growth with disciplined unit economics.
Expand: Key Results (2022-today)
Powering continuous upselling growth
- 35,000+ qualified leads, delivered on an unchanged ad budget.
- 40% convert within 30 days, with additional rolling conversions and strong lifetime value through upsell, cross‑sell, and repeat contracts per customer.
- Total CAC under €25 (ads + operational costs), with average CPC of €0.38, enabling strong positive unit economics.
- 25% of the client’s annual revenue came exclusively from leads generated by our acquisition system.
Expand: What Made it Work
We didn’t run campaigns—we built a full‑cycle acquisition system.
- Continuous optimization and fraud protection (spam, click abuse, budget attacks).
- Deep collaboration with Google account teams and client operations.
- Performance tracking across ads, call center, and agent workflows.
- Strategy grounded in real commercial data and customer lifetime value.
Ready to build a perpetual client production engine?
Testimonials
What they said for our skills, expertise and unique approach on caring for results.
My collaboration with Christos Vassilopoulos was a real revelation for AmazingBigBook. His observations were the necessary truth that helped me organize the structure, aesthetics and functions of my platform. He helped me better organize my "wants", my plan and my strategy. With his targeted and organized guidance, I put my thoughts in order and immediately improved my product. A substantial development trigger for every professional who is looking for the essence behind their plan!
Working with Christos Vasilopoulos and the Groowise team has been a wonderful experience for us at the Team Coaching Global Alliance. Since we started our collaboration in March 2024, Christos has consistently demonstrated deep expertise and technical know-how that we rely on daily. He offers excellent guidance on our tech needs, ensuring we make the right decisions. What truly sets Groowise apart is their exceptional responsiveness and customer service. They respond quickly to any request and show remarkable patience and persistence in finding solutions that truly match our specific needs. Their willingness to work at an agile and flexible pace has been invaluable in keeping our projects moving smoothly. It is a pleasure to have such excellent collaboration with a partner who combines top-tier technical service with outstanding support, all at great prices.
We ended up at Groowise after a lot of hassle in the market. We feel lucky. We finally consulted with real professionals. They know their job well, they tell the truth and not big words, they are direct in communication, fast, efficient and responsible. We highly recommend Groowise.
Having worked as a coach before even starting our sessions I was eager to be coached by Chris. The experience has been very helpful in terms of keeping me focused on what is in and outside of my own control, alongside asking me to simplify and focus my issues into something we can work on and make progress on today.
Our long-standing collaboration with Groowise was and is decisive in order to increase dramatically the quality leads we get from the Google Ads, web design/development and consulting activities they provide us with, so that we can in turn convert them into sales for our business. They adapt directly to the requirements of the very competitive market in which we operate, they have an excellent knowledge of the necessary technology and possess the necessary expertise to constantly evolve the overall complex mechanism that adds value and new customers to us and to remain competitive by making the best use of the available budget of our projects.
My collaboration with Groowise and Christos Vassilopoulos is one of the most beautiful collaborations I have had in the context of expanding my work through the creation and promotion of my website. Christos is always present at every step and stage of the process, encouraging, guiding and supporting me essentially without a trace of criticism. He is human, a friend and a supporter and not a cold and non-friendly professional that one is used to see in business & corporate related areas. And at the same time he is professional in what he does, 100% knowledgeable in his field and with him I enjoy both the final result of my website and the process of creating it myself! I am glad I trusted him with my project!
I have been working with Groowise for many years and they are amazing !! First of all they have excellent skills and understanding of digital marketing and how to best present and promote your business on the Internet... We have worked with Christos and his team and we have developed multiple websites for our hotel properties.. Always using the latest technologies and tools, and providing us with cost effective solutions that fit our needs.. Besides the excellent work on our websites, their customer support and service is top notch.. I highly recommend them for any digital marketing and website project !!
I wanted to take a moment to express my sincere gratitude for the support you have given me. Your guidance has been invaluable to me and I am deeply grateful for the time and effort you have invested in ST76 Ltd.
I benefited immensely from the coaching sessions with Christos and would recommend him to anyone who wants to be challenged to grow and develop. Christos cultivated an environment of trust where I felt safe to be vulnerable with some of my biggest concerns and biggest issues as I navigate a career transition. Chris created a space where I could reflect and challenge myself to move forward and achieve my new goals. He asked the right questions and pointed out thinking that was not constructive or beneficial to my progress. Thank you Christo!
The best Online Marketing guidance I have ever had. My website ranked first on Google and almost doubled my online bookings. They are available at all times to help me, friendly and polite guys. They provide effective SEO initiatives that result in noticeable improvements in the client's Google rankings. The team collaborates effectively, seamlessly manages client expectations and meets client deadlines. Their clients can expect a professional and experienced partner.
They helped to strengthen our online presence. The team had good project management skills, which were effective. They communicated well through emails and phone calls.
They are highly qualified in their field. They handled all the projects efficiently. Their team had a solid organizational structure and had effective project management. They were knowledgeable and had many solutions.
They are direct, methodical, quick and skilful. They guided me through a very efficient process, which resulted in a great website, with all the details in place. Each item was carefully documented for its reason for being and the purpose it serves. Chris's team designed and launched a great responsive website very quickly. They are amazingly collaborative. This really helped me organize the content they needed. Thank you so much!
Christos is a very good businessman and coach, which makes him suitable for my concerns during our collaboration. He is highly present and an excellent listener, as well as sharp in his questions which provoke further introspection and focus. He is approachable, with a good sense of humor and willing to dig deeper for greater insight and clarity. Highly recommended!
Each time we meet, Christos tailors his questions to what I need to work on, from family issues to personal organization and business questions. His ability to adapt to my various topics makes me feel safe to talk about everything I need in a judgment-free zone, and really that and the space he holds allow me to reach inside myself to find what I need. Sometimes it's a solution, sometimes it's a change of perspective that allows me to see a situation in a whole new light, or a confidence boost.
Christos identifies the key areas to help the coachee identify the desired outcome and keep the discussion on track. I recommend Christos to anyone who would like to move forward with specific challenges or goals they are facing. He is highly professional and an extremely effective coach.
Christos is a coach who formulates his questions very well. He asks the right questions at the right time. He gave me plenty of space to think my thoughts and come up with ideas that were very beneficial to my growth and success. I felt comfortable talking with him and connecting all the dots that were unclear to me. I am so glad I chose to work with Christos!
I am very demanding, and Christos was very patient with me from the beginning, updated my site as it should be and corrected many of the mistakes of my previous developer.
The most professional developers we had ever had. They went above and beyond to ensure we were satisfied. I can’t recommend them enough! Thanks!
They responded super quickly and corrected the issues and went even further with more advice. Very pleased. I feel much better now!
Very helpful with a hacked site.
Satisfied with the work, very efficient in terms of time.
Very knowledgeable and willing to help.
Client Case Study B: Bookings & Upsells
A Decade‑Long Seasonal Engine for Tourism
We don’t run seasonal campaigns.
We build repeatable seasonal engines, year after year, within tight windows.
Expand: What we Achieved
To build a battle‑tested acquisition engine delivering 26,650+ attributable orders (online + offline) within a constrained seasonal window – repeated reliably for nearly a decade at exceptional efficiency. From first click to on‑premises experience, maintaining exceptional low unit economics, year after year.
Expand: The Financial Results (2016-today)
Predictable volume within seasonal constraints.
- 20,500+ orders acquired online—exclusively during the 4‑month peak season each year. Only targeted maintenance spend during 8 off‑season months.
- +30% offline orders lift from audiences who discovered the business digitally but completed booking offline—via phone calls or in‑person at offices/premises—proving our system drives full‑funnel behavior, not just online conversions.
- 146,000 high‑intent clicks at an industry‑leading €0.22 average CPC across Meta and Google—maximizing qualified volume without sacrificing efficiency.
- Foundational SEO (one‑time setup) amplified paid reach—no ongoing SEO fees.
- Significant upside: On‑site upsells/cross‑sells (excursions, premium packages) generated meaningful additional lifetime value through sister entities.
Expand: What Made it Work
We strategized a seasonal growth system (4-month window per year), not a one‑off campaign.
- Constraint mastery: Designed bidding, creative rotation, and budget pacing exclusively for the 4‑month window—no wasted spend during 8 dormant months. Year‑over‑year optimizations compounded results without inflating CAC.
- Full‑funnel attribution: Implemented call tracking and location‑based signals to quantify the 30% offline client lift most agencies ignore—revealing true acquisition impact beyond last‑click online bookings.
- Channel synergy without bloat: Meta for broad seasonal awareness; Google Search/PMAX for high‑intent capture; foundational SEO ensuring organic visibility amplified paid reach—all without ongoing SEO retainers.
- Long‑term partnership discipline: Nine consecutive seasons of execution enabled deep audience learning, creative fatigue management, and fraud protection refinement—turning seasonality from a limitation into a predictable advantage.
Ready to turn your seasonal constraint into an acquisition engine?
Industries we accelerate
But not limited to…
Hospitality (Hotels, Villas, Tourism related)
Performance Analysis (The Problem)
Keyword waste: Budget drained by bidding on generic “luxury hotel” terms.
AI rivals win by targeting travelers based on search date and real-time booking intent.
60-Day Turnaround Plan
Deploy an AIO-powered Google Ads engine.
Predict high-value traveler windows to capture demand early.
Auto-optimize bids to P&L, not clicks.
Recover lost bookings via personalized retargeting of abandoned searches.
B2B Tech / SaaS (Mid-Market)
The Problem
80% of leads are cold, tire-kickers, not buyers.
Sales friction: Poor lead quality slows pipeline velocity.
Unit economics broken: CAC ↗ | LTV →
60-Day Turnaround Plan
Audit & recalibrate lead scoring against closed-won data.
Restructure Google Ads + LinkedIn around buyer intent, not demographics.
Target by purchase stage, not job title or firmographics. Reduce spending on low-intent traffic; redirect to accounts ready to buy.
Stop paying for curiosity. Start funding conversions.
E-commerce / DTC Brands
The Problem
Spend is high. Traffic is up. Conversions are flat.
Root cause: Ads promised one thing; the site delivered another.
Result: Experience mismatch killed CVR.
Operational Strategy (45-Day Plan)
Sync the funnel: Align ad creative → landing page → checkout into one seamless promise.
Focus on one high-value product cohort, not the full catalog, to sharpen messaging and measurement.
Validate the aligned funnel, then scale only the converters to cut waste and compound ROAS.
Turn traffic spikes into revenue lift.
Professional Services (Agencies, Consultants, Coaches)
The Problem
New business leans on legacy relationships—not scalable demand.
Content gets likes, not leads: High engagement, zero qualified inquiries.
Diagnosis: You’re attracting information consumers, not service buyers.
Operational Strategy (75-Day Plan)
Pivot positioning from generic “expertise” to one high-stakes client outcome.
Built a purpose-built lead engine, not just content, to capture ready-to-buy intent.
Filter for transactional intent, cutting traffic that consumes and doubling down on prospects that convert.
Turn thought leadership into deal flow by attracting buyers, not browsers.
Real Estate (Developers / Brokerages)
The Problem
High listing views, low serious inquiries.
The brand feels generic, not distinctive or desirable.
Competitors win with lifestyle storytelling that drives emotional urgency.
Engagement fails to spark the connection needed for high-ticket decisions.
Strategy (60-Day Plan)
Rebuilt property pages around buyer psychology, not sq. footage, to trigger emotional commitment.
Embed tools were configured to capture leads before the first inquiry.
Launch hyper-local retargeting loops using urgency triggers (e.g., “3 buyers viewed this week”) to accelerate decisions.
Transform generic traffic into qualified inquiries.
B2B Manufacturing / Industrial Services
Performance Analysis (The Problem)
Sales cycles stall >6 months, pipeline velocity flat.
Operational excellence is invisible to remote buyers.
Superior products lose to competitors with a sharper digital presence.
Strategy (120-Day Plan)
Built a “Trust Architecture”, digitally validating capability with proof, not promises.
Replace claims with hard metrics in quantitative case studies that speak to engineers and CFOs.
Deploy video tours to make operational excellence credible.
Launch targeted LinkedIn campaigns focused on pain triggers.
Pharmaceutical & Wellness (OTC • Nutraceuticals)
The Problem
Budget wasted on generic keywords (“Vitamin D”) vs. intent-driven queries.
Competitors win with AI targeting symptom/lifestyle intent (“joint support for runners”).
70%+ of category growth captured by Amazon/big-box — commodity pressure intensifies.
Premium pricing fails without educational density and trust signals.
Operational Strategy (75-Day Plan)
Deploy a regulatory-compliant growth engine targeting symptom + lifestyle keywords.
Build an AI-optimized content hub ranking for science-backed queries to establish authority.
Lift AOV by +35% through value-based positioning, not discounts. Drive 22% higher repeat purchases via educational retargeting nudges, not price promotions.
Wellness (Studios / Recovery / Holistic Coaching)
The Problem
Budget wasted on generic keywords (“yoga studio near me”)—not outcome-driven intent.
Competitors win by targeting outcomes (“reduce anxiety,” “sleep better”).
Aggregators erode LTV: ClassPass/Groupon train clients to hunt discounts, not commit.
High churn forces constant acquisition just to maintain revenue.
Strategy (70-Day Plan)
Shift to high-intent wellness journeys: Dynamic ads matching search intent to curated experiences (e.g., “adrenal fatigue” → breathwork + infrared sauna).
Replace “Book Now” with value-first gating: Capture leads via personalized wellness assessments, not generic CTAs.
Email/SMS aligned to specific goals (sleep, stress, recovery), not batch-and-blast.
Cut CAC by 35%.







