Since 2005
One Accountable Agency of Problem Solvers
We help B2B & B2C companies stop wasting 30%+ of their ad budget on unqualified leads by aligning digital spend directly to P&L—proven by 2–3x lead-to-revenue conversion. And when the bottleneck isn’t ads? We diagnose strategy, team, and tech leaks too—because growth stalls at its weakest link.
Three Core Services
We diagnose your growth bottleneck—then fix it. Most clients start with one pillar, then expand as results compound.
Strategy & Diagnostics
{The Blueprint}
P&L Leakage Diagnosis
Map every euro of ad spend to actual revenue — not clicks.
Channel Profitability Forensics
Kill vanity channels; fund only what drives LTV.
Friction Point Autopsy
Quantify revenue lost at pricing/checkout abandonment points.
AI-Powered Waste Detection
Algorithmic scan of 12+ leakage patterns humans miss.
See exactly where you’re leaking 20–40% of ad budget.
Digital Marketing
{The Engine}
AIO-Driven Google Ads
Auto-optimize bids against your P&L, not just clicks.
Competition War Gaming
Steal market share with data-backed counter-moves.
Channel Profitability Mapping
Kill vanity metrics. Fund only revenue-driving channels.
CRM & Tech Stack Integration
Close the loop between ad spend and closed deals.
Converting Tech
eCommerce systems that convert browsers into buyers at 3.2x the industry average.
People & Execution
{The Accelerator}
Leadership Alignment Sessions
Stop strategy drift between execs & teams.
Accountability Architecture
Ensure growth initiatives actually ship.
Decision Velocity Coaching
Cut approval cycles from 3 weeks → 4 days.
Case Study: A Customer Acquisition Engine That Drives Revenue
We don’t "run" campaigns.
We build customer acquisition systems.
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.
Key Results (2022–Present) - Powering 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.
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.
The Financial Outcome
A reliable “production line” of high‑value customers. Scaling volume without inflating CAC or sacrificing quality.
Ready to build yours?
Testimonials
What they said for our skills, expertise and unique approach on caring for results.
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 my 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.
Industries we accelerate
But not limited to…
Hospitality (Hotels / Villas / Tourism related)
Focus: AIO + Google Ads Optimization
Market Analysis (The Problem)
Keyword Inefficiency: Budget is currently drained by high-competition bidding on generic "luxury hotel" terms.
Competitive Disadvantage: AI-powered rivals are outperforming by:
- Dynamically targeting travelers based on active date searches.
- Adjusting bids based on real-time booking intent.
Revenue Leakage: Online Travel Agencies (OTAs) capture 20%+ commission on bookings that could be direct.
Operational Strategy (60-Day Plan)
Technology Deployment: Implementation of an AIO-driven Google Ads engine.
Predictive Modeling: Identification of high-value traveler windows to preemptively capture demand.
Financial Optimization: Bids are auto-optimized against P&L (Profit & Loss) rather than simple click volume.
Conversion Recovery: Automated retargeting of abandoned cart users with personalized suite offers.
B2B Tech / SaaS (Mid-Market)
Performance Analysis (The Problem)
Lead Quality Deficit: 80% of marketing leads are classified as "cold" or non-transactional ("tire-kickers").
Sales Friction: High volume of complaints regarding lead viability impacting pipeline velocity.
Unit Economics:
- CAC (Customer Acquisition Cost): Trending Upward⬆
- LTV (Lifetime Value): Stagnant➡
Operational Strategy (60-Day Plan)
Data Audit: Recalibration of lead scoring models against actual deal data (closed-won analysis).
Channel Restructure: Overhaul of Google Ads and LinkedIn campaign architectures.
Intent Targeting: Transition from broad demographic targeting to Buyer-Stage Intent (behavior-based targeting).
Objective: Eliminate waste on low-intent prospects and align spend with purchase-ready accounts.
E-commerce / DTC Brands
Performance Analysis (The Problem)
Ad Spend Efficiency: High budget allocation across Meta/Google Ads.
Metric Discrepancy:
- Traffic Volume: Spiking⬆
- Conversion Rate (CVR): Flatlining➡
Root Cause: Experience Mismatch. The on-site user experience fails to deliver on the specific value proposition ("the promise") presented in the ads.
Operational Strategy (45-Day Plan)
Funnel Synchronization: End-to-end alignment of the user journey:
Ad Creative → Landing Page → Checkout Flow
Strategic Focus: Restructuring campaign logic around one specific High-Value Product Cohort.
Growth Protocol: Validation of the aligned funnel followed by aggressive scaling of proven converters.
Professional Services (Agencies, Consultants)
Performance Analysis (The Problem)
Acquisition Dependency: New business relies disproportionately on legacy relationships rather than scalable inbound demand.
Content Marketing ROI:
- Engagement: High (Likes/Vanity Metrics).
- Qualified Inquiries: Zero.
Diagnosis: Current thought leadership attracts consumers of information, not purchasers of services.
Operational Strategy (75-Day Plan)
Strategic Pivot: Shift positioning focus from general "Expertise" to a single High-Stakes Client Outcome.
Engine Construction: Deployment of a purpose-built lead generation system.
Intent Filtering: Restructure targeting to capture Transactional Intent (Ready to Buy) vs. Informational Intent (Ready to Consume).
Real Estate (Developers / Brokerages)
Performance Analysis (The Problem)
Conversion Discrepancy: High volume of Listing Views≠Serious Inquiries.
Brand Perception: Digital presence classified as "Generic."
Competitive Deficit: Losing market share to competitors leveraging Lifestyle Storytelling to drive Emotional Urgency.
User Engagement: Fails to trigger emotional connection required for high-ticket transactions.
Operational Strategy (60-Day Plan)
UX/UI Pivot: Rebuilding property pages based on Buyer Psychology rather than technical specifications (e.g., Sq. Footage).
Tech Integration: Deployment of embedded Virtual Tours configured to capture leads pre-inquiry.
Ad Strategy: Implementation of specific retargeting loops utilizing Hyper-Local Urgency triggers.
B2B Manufacturing / Industrial Services
Performance Analysis (The Problem)
Pipeline Velocity: Sales cycle currently stagnating at >6 Months.
Digital Opacity: Operational excellence is invisible to remote stakeholders.
Market Position: Superior product quality is losing market share to competitors with superior Digital Presentation ("slicker fronts").
Operational Strategy (120-Day Plan)
Strategic Framework: Deployment of a "Trust Architecture" to validate capability digitally.
Asset Development:
- Quantitative Case Studies: Focused on hard metrics rather than qualitative claims.
- Visual Validation: Implementation of facility and process video tours.
Targeting Logic: LinkedIn campaigns isolated to Plant Managers.
Messaging Focus: Shift from feature-listing to Pain Triggers (e.g., "Downtime Costs").
Publications
Fear, This Liar (En/Gr)
Our very own book (and growth platform).



