I had the the pleasure to conduct a negotiation workshop in Slovakia along with Viktor Kosticky. Viktor is a highly qualified and knowledgeable negotiation practitioner whose insights and engagement with attendees was very impressive. Working with Viktor was a great experience and I highly recommend him for anyone seeking negotiation training and assistance in the region of Slovakia. Sincerely, Gary Noesner, Chief, FBI Crisis Negotiation Unit (retired) and author of "Stalling For Time: My Life as an FBI Hostage Negotiator."

S Lenkou spolupracujeme ako spoločnosť už dlhšie, v roku 2025 som s ňou mala intenzívnejšiu spoluprácu v rámci našej banky v rámci 2 projektov a hodnotím ju ako nadštandardnú (témami, prístupom, osobným vkladom k témam).

Vie veľmi dobre navnímať situáciu a potreby skupiny a prispôsobiť obsah školenia. Je flexibilná, otvorená k dohode a dokáže efektívne trénovať, feedbackovať aj seniorné tímy.

Vysoká odbornosť, praktické role plays boli priamo použiteľné a feedback od riaditeľov SME bol jednoznačný: konečne školenie, ktoré otvára nové pohľady a je použiteľné v praxi.“

Mal som tú česť spolupracovať s Lenkou počas jej pôsobenia v programe Licensed Trainer Cialdini Institute. Vynikala svojou energiou, angažovanosťou a odhodlaním a stala sa jednou z prvých v našej skupine, ktorá úspešne dokončila certifikáciu. Lenka spája hlboké porozumenie princípov ovplyvňovania s ich praktickým využitím a obsah podáva s jasnosťou, autenticitou a dôrazom na etiku. Som presvedčený, že Lenka bude aj naďalej vytvárať zmysluplný dopad ako trénerka a partnerka Cialdini Institute, a s veľkým presvedčením ju odporúčam každému, kto hľadá skúsenú, etickú a vysoko angažovanú profesionálku v oblasti behaviorálnej psychológie a ovplyvňovania.

Lenka školila mňa aj môj tím v oblasti ovplyvňovania a musím povedať, že školenie splnilo naše očakávania.
Tréning bol vedený prakticky, dynamicky a s dôrazom na situácie, s ktorými sa moji riaditelia firemných pobočiek stretávajú v každodennej práci. Role plays boli naozaj zo „života“.
Feedback od kolegov som dostal, že konečne niečo naozaj užitočné čo ich aj po dlhej praxi s korporátnymi klientmi posunulo ďalej a „otvorilo oči“.

Working with Juraj Ferenčík on sales skills and new customer acquisition training, we at PHAREX s.r.o. were extremely satisfied. The training was designed primarily for our Austrian representatives and was conducted in German — with Juraj speaking at a native-speaker level, which gave the entire training the authenticity and professional depth it needed.

We especially appreciate his highly proactive approach. Even before putting together the training outline, Juraj actively looked into how our company operates and the specific challenges our field sales reps face. That detailed groundwork showed in the quality of the content, which was tailored precisely to our needs. During the training itself, he was also very flexible and able to adapt to the dynamics of the group.

Juraj is a professional whose services I gladly recommend to anyone looking for quality without compromise.

I'd rate the collaboration with Juraj on sales technique training and uncovering unspoken objections as extremely positive. Unlike typical training full of theory, these were intense days packed with practical role-plays, healthy resistance, and unspoken objections probed from every angle. That real pressure pushed our sales team out of their comfort zone and showed them a new perspective on how to lead a conversation with a customer.

In the training with Juraj, we focused not just on how to lead sales conversations, but also on practicing specific real-world situations. For me, that's a major added value.
It's also important that Juraj is highly flexible and able to adapt the training to the practical situations we encounter in our everyday work — whether that's communication with customers or within our own team.
Thank you for two useful and effective days of training.

Over the course of a career, one attends many training sessions. Yet, very few leave such a lasting impression that you immediately start thinking about whom else you should send to them. Viktor’s negotiation training was exactly that kind of experience for me. I particularly appreciate his highly practical approach and his ability to delve deep into the subject matter while explaining things simply and clearly. It wasn't just about specific techniques; it offered a completely different perspective on preparation, strategy, negotiation dynamics, and the events unfolding on the other side of the table.

That is also why my team will be participating in the same training. I believe that if something holds real value for me, it makes sense to give the people I work with the opportunity to experience it as well. I highly recommend Viktor to anyone for whom negotiation is a key part of their job and who wants to make genuine progress in this area. I am already looking forward to our next negotiation together.

Školenie Umenie ovplyvniť – Cialdini s Lenkou bolo pre mňa silnou a veľmi praktickou skúsenosťou, ktorá ide ďaleko za rámec bežných tréningov komunikácie či presviedčania. Oceňujem najmä to, že je postavené na vedecky overených princípoch behaviorálnej psychológie a zároveň ukotvené v etike, hodnotách a zodpovednosti lídra.

Odniesla hlbšie pochopenie toho, prečo samotné argumenty často nestačia, ako fungujú mentálne skratky pri rozhodovaní a ako vedome pracovať s momentmi ešte pred samotným stretnutím či rozhovorom. Veľmi prínosné boli aj konkrétne príklady, ako budovať dôveryhodnosť v prvých minútach, zvyšovať záujem druhej strany a pracovať s princípmi vzájomnosti, spolupatričnosti či záväzku tak, aby spolupráca bola prirodzená a dlhodobo udržateľná.

Lenka dokáže komplexné princípy vplyvu (Cialdiniho prístup, averzia k strate, nedostatok, psychológia čísel) vysvetliť zrozumiteľne a prepojiť ich s reálnymi situáciami – rozhodovaním, vedením ľudí, presadzovaním vízie či zmeny. Zároveň vytvára bezpečný priestor na sebareflexiu a otvorenú diskusiu, čo považujem za veľkú pridanú hodnotu.

Tento tréning by som úprimne odporučila všetkým, ktorí chcú zvyšovať svoj vplyv vedome, eticky a s rešpektom k ľuďom, nie silou argumentov, ale porozumením tomu, ako sa rozhodnutia v skutočnosti rodia.

After the training, Juraj offered me a free consultation — something you don't often see. During it, we put together a "cold call script."
He helped me understand the psychology of the first sales conversation.
To understand the connections. He asked excellent questions that I had to find answers to — and those were exactly what helped me steer the sales conversation. If you need to increase the success rate of your sales conversations, don't hesitate to reach out to Juraj. He listened to what I said and worked on my actual issues. No ego trip.
He didn't hand out guaranteed recipes — instead, we tailored everything to my specific goal. Thank you, Juraj.
PS: My sales success rate keeps growing.

Whenever someone asks me, "What exactly is negotiation?", I like to answer: "Negotiation is a craft."
Almost invariably, a surprised and curious question follows: "What do you mean?" Take this example: when someone wants a truly high-quality built-in wardrobe, they have two options. Either they have immense confidence in themselves and build it on their own using a trial-and-error approach (which often doesn't turn out quite as intended), or they call in a seasoned professional who knows exactly what he’s doing. They simply provide the required specifications, and the craftsman gets to work. If you choose the right craftsman, the result is often better than you could have ever imagined. In my view, Viktor is a true master of his craft—he knows exactly what he is doing, and he executes it with both ease and precision.

In my opinion, it is difficult to find a training course that leaves a lasting impression and truly helps you grow—whether professionally or personally. I experienced that kind of growth with Viktor. I attended a training session he led for my corporate center directors, and we still refer back to the techniques we learned. I highly recommend the experience, and if I ever lead a new team, I will certainly reach out to Viktor.

“I had the pleasure of working closely with Viktor during a complex process of negotiations and I was impressed by his exceptional negotiating abilities and professionalism. He navigates difficult situations with grace and speed and helps us bring great results to our team and business. Viktor clearly demonstrates that he understands the objectives and complexity of every negotiation. He prepares thoroughly, thinks strategically and cooperates fully, making him a valuable asset for any team. I recommend Viktor Kostický to anyone looking for a canny negotiator who drives strong results and fosters positive relationships. His responsiveness, dedication, expertise and integrity make him indispensable.”

Viktor clearly demonstrates that he understands the general objective and the complexity of each particular negotiation. Each situation is treated with a thorough preparation, strategic thinking, and thinking based on cooperation, which makes it a valuable asset for every team. Viktor Kostického I recommend to anyone who is looking for a canny negotiator, which is able to achieve successful results and at the same time, promote positive relationships. His operatívnosť, dedication, expertise and integrity to make it a valuable accessory to any team.“

“I’ve attended countless trainings - on different topics, with various people, in many settings - but most are forgotten soon after. Not Viktor’s three-day negotiation workshop. From day one, we remembered and applied everything we learned. It was perfectly tailored to our logistics challenges, with 10 % theory and 90 % hands-on practice. When you want the best, learn from the best.”

I met Juraj at Viktor's training, and when we needed to get sales moving for our B2B SaaS product Mergin Maps, we sent our junior salesperson to his public Acquisition course. We built on that foundation with dozens of hours of individual, tailored training throughout 2025, focused on developing key sales skills. The investment is already paying off through a significantly higher success rate on our sales leads and an overall mindset shift across our sales team. Juraj is a great trainer — engaging, and able to adapt the training to our needs.

“Within minutes of meeting Viktor, we knew we were in expert hands. During our negotiations to bring a new partner on board, his mentoring and active presence in key discussions took us to a whole new level. Viktor combines deep negotiation experience with strategic vision and a human touch - always ready to jump in when urgent issues arose. We gained far more than we expected.”

“It’s rare for a training to exceed my expectations - Viktor did just that. His negotiation course was a breakthrough, packed with deep yet accessible psychological insights and realistic simulations. In July, our small group spent two intensive days with him; we already have follow-up sessions planned for September and December. Altogether, 5 negotiation training days. Thank you, Viktor, for sharing your invaluable expertise.”

"If you need to improve the negotiation and sales skills of your people, so that they know how to listen to your customers to understand and know how to respond to the verbal and non-verbal signals and try to understand the needs of the other party and to then be understood by the customer, I definitely recommend that you contact Viktor Kostický."

“Viktor is a true master of sales and negotiation. His workshop pleasantly surprised me with how quickly he grasped our business and responded as if he’d been with us for years. The relaxed atmosphere let us delve deep into every concept, and his flexibility ensured we squeezed maximum value from each session. It was outstanding, and I look forward to working with him again.”