What founders say

“Adi gave me a new perspective. he gave me the order to follow before I know if I have a product people will buy. He gave multiple examples to make it easy for me to understand but what helped most is the order. He said 1st is the ICP, then the VP and then finally comes the product which automatically becomes what the customer will pay for. I will come back to Adi after I have figured out the order. thank you so much Adi!”

“Adi had great energy and is extremely knowledge in how a correct positioning is crafted. There is a clear order of things, and it helped me understand what to put first and last in terms of having something concrete to showcase. Thanks for that!”

“Adi was amazing! He actually read the exhaustive info I sent him about our company and was able to deliver insights and advice from the get go. And he did so in a way that was easy to grasp - using every day analogies! He had great ideas and was also generous with his time. We implemented some of his ideas pretty much immediately and it made a big difference! thank you Adi!”

“I had a really insightful session with Adi. His detective approach to product/market fit genuinely stands out! He doesn’t just give advice, he helps you think through problems by asking the right questions and validating assumptions step by step. It felt very structured but also intuitive at the same time. What I appreciated most was how he challenged my thinking in a constructive way and helped me see gaps I hadn’t noticed before. You can tell he has deep experience working with early-stage startups and truly understands the journey. Overall, it was a very valuable conversation that gave me more clarity and direction.”

“Session with Adi was pure value! The way he analyzed our situation and provided concrete guidance with clarity was inspiring and easy to follow. Will definitely book again!”

“Adi delivered crystal-clear guidance on sharpening my positioning and defining a precise ICP. His ability to simplify complex ideas into intuitive, compelling value propositions was incredibly helpful. Direct, thoughtful, and immediately useful. Highly recommend!”

“Adi was a great help. He offered perspectives and ways of thinking that I hadn’t considered before, and helped me focus on the key areas I need to pay attention to and develop further.”

“Some really good feedback. Understood my problem very quickly without much of an explanation. Gave me some good things to try out. Very friendly as well.”

“Adi was kind and clear with his advice. He shared a simple framework to help me think about next steps and how I should be thinking about validating my problem, including some online resources. He was also able to share his perspectives on the dynamics and challenges in the education sector, including teasing questions for me to answer. It was a very productive chat!”

“Adi can immediately understand my pain points as a founder, and offer resource and use analogies that make sense immediately. He cares about the whole person development as a founder, which I really love and aligns well with what I need. I like his short podcast, "How to talk to yourself" which hits home on the mental fitness aspect. Finally, he's conciseness and expertise for the 0 to 1 stage founder cannot be overstated. I believe anyone who's at the beginning of their startup journey must talk to him at least once.”

“Adi is incredibly knowledgeable about the startup world! He gave me with invaluable resources and insights on achieving product-market fit, identifying ideal customers in the B2B space, finding the transformative value for customers, and mapping their motivations and interests. His passion for startups and genuine willingness to help founders really shine through. I can't thank him enough for his help!”

“Adi gave a masterclass on product market fit, what does it mean and what’s the underlying formula to achieve it. Very insightful. I enjoy this session a lot. Thank you.”

“Adi really helped us address a crucial challenge we were facing with our fintech startup’s GTM and positioning. Despite having 800 paying customers, we were struggling to scale, and Adi’s insights into aligning our value proposition with the market were incredibly valuable. His advice on strengthening our product-market fit and messaging gave us a clearer path forward. I’m grateful for the practical strategies he shared to help us improve conversions and drive growth.”

“Great session, filled with measureable action items and ideas.”

“Had such an interesting talk with Adi, about validating and building early-stage statrtups and working with founders. Can't wait for the next session.”

“Incredible!!!! I'm the founder of a mobile app, with a bachelor's and a master's degree. Adi simply changed my approach and taught me to think differently: precisely, and with a clear goal. Working with him gives me a great deal, and I recommend him to every business owner :)”

“I thoroughly enjoyed learning from Adi about the topics related to make progress toward the product market fit. Adi's clear explanations and simple examples helped me understand the processes and goals quickly and efficiently.”

“Adi, thank you so much for all your help! Even though we've only been working together for a few months, I can already see how valuable your input is. Your fresh ideas and insights have been amazing with our recent projects and the speed at which you think is simply unrivalled! I'm excited to keep working with you and exploring more of your great ideas in the future. Thanks for bringing us to this point.”

“Just finished up our call and have a real solid foundation to get started on next steps. I struggled with figuring out what our ICP would be before this call and now feel like I have some great insight on how to narrow down my market. Thank you so much. Can't wait to chat again.”

“I had the pleasure of working with Adi for 1.5 years as the founder of a music-tech startup. Adi was my PM/F mentor and a member of the advisory board. He guided me through designing the problem, solution, business model, pitch deck, analyzing the market, and performing customer interviews. His insights about these topics are very valuable. Adi was available almost 24/7 and assisted with everything I needed. I learned so much from him about building products, conducting validation tests, and understanding my potential customers. Overall, partnering with Adi was one of the best decisions for my startup, yielding tremendous growth, stability and knowledge”

“Great resource to have. Personally, at my stage I need as many holes poked in my thoughts as possible and Adi doesn't hesitate to do so. Once again a very valuable meeting.”

“Great chatting to Adi! Sound advice which I can put into practice”

“Another brilliant session with Adi. The reason I book these sessions as a solo founder is to apply external opinion and stress to my thought process. Adi does exactly that with clarity and explanation (generally backed up by a story). A genuinely great guy. I'd recommend a session if you are early stage and working towards PMF.”

“Adi is a true expert, and our meeting gave me many actionable pieces of advice that I really needed. He is friendly and smart and has a very practical approach. I highly recommend working with Adi and getting his help on PMF, marketing and business.”

“Adi was very knowledge sharing scenarios and examples and boiling things down to a tactical level.”

“Adi is very patient and amazing. He was able to understand my issues very quickly and make very thought provoking suggestions. He methodically breaks down what I am doing incorrectly and patiently walk me through how I can iterate. Overall, the call is very helpful and I will definitely reach out to Adi in the near future.”

“Powerful brainstorm and feedback, and a truly invested in our journey. It is a pleasure to work with Adi!”

“We came to Adi in order to work on our MVP proposal. Adi's professionalism was above expectations! For Adi's great knowledge, creativity, and systemic perspective, he was able to easily identify the point where we are and help us navigate through a milestone that was holding us back. Really for a moment, it felt that Adi was almost part of the team with the enthusiasm and the real desire to solve the problem we were working on. Highly recommend and I'm sure we'll keep in touch :)”

“I met Adi several years ago and knew straight away that he was the one I wanted to work with. I saw rare professionalism, command of a wide range of fields, and real knowledge. Adi lives and breathes product marketing and customer relationships, and he always has wonderful ideas. I've been working with Adi for several years now and rely on him in different processes in my business. I value every hour of conversation I have with him. Well worth it, and very, very highly recommended.”

“Adi was my mentor in the KIC accelerator for pre-seed startups. As a young entrepreneur there are many questions and decisions that stand before me, and Adi was like a ray of sunshine helping me getting the right ones. I’m so thankful that I had the change to meet and work with him. I’m stronger today because of him. Thank you Adi!”

“Generous & brilliant, great insights.”

“Adi has so much energy - and knowledge! Quickly grasped what I need in order to organize my ideas and gave me lots of practical steps to test my business idea. Highly recommend talking to him!”

“Adi is a rare combination of a pro that doesn't let his clients BS themselves and a mensch that cares about his clients as people, not only clients. Not to mention his vast knowledge of the topics we worked on together. Thanks!”

“I met with Adi to consult on our stsrtup's tough PMF challenges. Adi was quick to understand the situation, and guided me with wonderful advice and offered valuable connections to enable our discovery process. I highly recommend!”

“Adi is honest, real, humble, knowledgeable and genuinely wants to help startups, and people, succeed. I highly recommend him and his guidance.”

“Adi helped me many times throughout my journey of product market fit. His professionalism, enthusiasm and can-do approach are super contagious. Strongly recommend him and his services!”

“Adi is super professional, creative and skilled... and a mench. It's fun working with him and I'm confident in his abilities.”

“I had the privilege of working with Adi and exchange ideas and knowledge about go-to-market strategies, PMF and more for some great startups which 3pel ventures holds interest in. Warmly and highly recommended”

“Adi is one of the most strategic-thinking people here. Super useful advice to test some assumptions. Thanks”

“The session was great and Adi provided me exactly what I was looking for. Clear, actionable steps that help me go further finding the right product/market fit. Thanks so much!”

“Adi is a great mentor and a true professional.”

“In the short time we had Adi listened intently to the context/background I provided and then asked good questions to clarify his understanding and offered several practical ideas and further learning resources within the time we had available. Overall I found value in the call and will definitely lean on Adi in the future for other topics.”

“Adi is very enthusiastic to help out and gave very good advice on getting to PMF. Would highly recommend him!”

“I had a call today with Adi where we discussed product-market fit. I must say that this was a favorite call of mine. Adi Knows startups incredibly well and can take the information that he has learned and flawlessly apply it to whatever you have questions on. During our call, he asked probing questions, pushed back on some assumptions, and gave a few clear calls to action. It was exactly what I needed to hear! I highly recommend taking 30 minutes with him, it will be worth it and the time will fly!”

“Arthur C Clarke famously said, “Any sufficiently advanced technology is indistinguishable from magic.” Swap the word "technology" with "skill" and the quote applies perfectly to Adi. I reached out to help with some Product Market Fit questions and the way he zeroed in on the solution was almost magical. GrowthMentor is a great platform and Adi is the embodiment of what makes it special.”

“We've been working with Adi as a consultant for 9-months - he has a unique ability to re-frame/clarify our thoughts and explain his 'product/market fit' expertise in a practical and applied way. An invaluable resource.”

“Adi provided assistance in product strategy and helped a lot with our initial demo prototypes”

“The way of working makes a lot of sense: understanding where I am right now, what the main problems I'm dealing with are, and what I can do next to move forward. In our meetings I loved your ability to understand my problems and, at the same time, come up with creative ways to run real experiments that let me get to the root of the problem and move on to the next thing. I think the people who will gain most from your services are early-stage founders. Not necessarily those with just an idea, but those who want a solid foundation, who see themselves as entrepreneurs and want to grow to the point where they can build a product and make sure it's right and good.”

“In addition to Adi ability to think outside the box, his knowledge of how to present and employ the correct method proved invaluable to us, despite our difficulty understanding what was next, Adi helped us build the right plan for finding the PMF effectively.”

“Adi is the best CPO I've met. He is super strategic, a fast thinker and simply gets it. He always listens and analyzes carefully the feedback that we get from clients. He simply knows what needs to be done and he does it well.”

“Adi was simply fantastic. He went the extra mile with insightful recommendations on how to identify/benchmark/validate our customers and gear up towards PMF. I would 200% endorse him. Thank you Adi!”

“Very knowledge. Super friendly. Pleasure to talk to. Thanks.”

“Adi took an extra effort reading through notes I shared before the meeting and getting to the core of our problem. I highly recommend speaking to Adi as he has great expertise on finding product-market-fit and will bef great use for every founding team.”

“My call with Adi was one of the greatest chats I have had in Growth Mentor. I'd definitely book with him for PMF, Go To Market, and early stage startups. As a detective (check his profile), he collected clues with questions in the beginning of our call, and then we proceeded in a discussion/analysis of different strategies, choices for a health-tech concept. I also highly appreciate Adi's responsiveness before the call. Thank you Adi!”

“I am more than grateful to have the opportunity to call with Adi. After telling Adi how my ecommerce business works, he gave me a growth strategy tailored to my needs. I am really impressed by his tips because he made me aware of things I have never thought of before. I am optimistic that I will be able to scale my ecommerce store to the next level soon thanks to Adi´s tips. Thanks a lot!”

“Adi went above and beyond, sharing some great insights into better ways of running & structuring sales calls. He also followed up from our call by sharing some extremely helpful observations + areas of improvement for my agency's website!”

“I booked a call with Adi to get advice on product road mapping. I left the call with a Google Doc page filled with actionable notes. Adi understood our product dynamics very quickly. It felt like I was having a candid conversation with a product manager that had been embedded in our product team for months, not just the past 30 minutes.”

“I REALLY enjoyed my conversation with Adi and it is hard to imagine a more value-packed session than we had. He's incredibly knowledgeable and as long as he's happy to mentor, everyone here should have a session with him as quickly as possible.”

“Great session with Adi Joseph! He's an expert on finding PMF and would keep you grounded to keep looking for the real problem and solve that! He helped me so much by brainstorming with me who my potential customer is, what is their problem, what I've done so far to validate that... is it enough, is it not. We discussed many different options, and he kept coming up with ways to do more validation and keep the process of discovery on high gear and not settling until a solid pain point has been identified and solved for a set of customers. I can't think of anything more important in a startup than finding PMF and Adi Joseph is an invaluable resource to help you get there! Thanks, man! :)”

“Adi is a senior advisor for eTeacher’s product executives’ team for over a year now. Adi’s broad experience in product management has been a huge asset for eTeacher. Adi helped us both in our product strategy as well as in the implementation of major projects along with hands-on execution in some of them. During this process we made many improvement to our product, starting with restructuring the product team followed with introducing tools and processes that boost productivity and customer experience. Adi has the skills and experience to understand the organization and find the best way to work with all stakeholders in collaboration. I learned a lot from Adi and highly recommend his guidance, advise, and in executing complex projects.”

“When we needed a prototype to test our product assumptions, adi was the best choice for us. His knowledge and the capability to learn a new area (Construction Tech) is amazing. Adi started with customer discovery to better understand the real needs and then quickly developed a fine-tuned prototype. The journey with Adi was a pleasure all the way. It seems like we know him before and he was one of the team. We did a few more projects together and the Professionalism of Adi is priceless. We definitely will do some more projects together as now he's a team member and a partner of ours. Thank you very much Adi for the execution to make our dream come true.”

“As a startup founder, you meet a lot of different advisors wanting to help that make lots of promises, but few offer the real value you need in a mentor and advisor. Adi quickly set himself apart from many of the mentors I've come across. From our first conversation, the value he offered me was immediate, and his support and patience since have been a huge asset on my entrepreneurial journey so far. His expertise in product/market fit and depth of knowledge in this area is unparalleled together with his ability to carefully listen and provide laser-focused practical advice to drive my startup forward. Moreover, the fact that he doesn't have knowledge of the very specific niche I operate in (Accountech) but still provides so much useful mentoring and advice is a testament to his ability to offer fantastic value to any entrepreneur.”

“We met Adi during a lecture he gave at AtoBe accelerator in which we participated. We could see Adi has the skills, knowledge, and experience we can benefit from. We reached out to Adi and started working together directly. After working together, helping us with our journey to Product/Market Fit, we can wholeheartedly recommend working with Adi. Adi has a rare ability to see the bigger picture, consult, and provide focus and clarity on both the initiatives and messaging. His diligence made us feel like he was a valued team member. We thank Adi and wish a similar experience to all who choose to work with him. Alona & Yaniv, Thermanostics”

“Adi is an expert in PMF, and in the marketing field in general. He is creative and full of ideas on how to promote the product, deal with objections. He is a very service person and pleasant to work with.”

“Adi is a multi-talented advisor, his hand touches almost everything, from the product, data analysis, copywriting, marketing strategies and approach to investors. He has the ability to explain and teach in a way that anyone can understand and always ready to help with a smile. Adi helped us understand many things and avoid many mistakes along the way. Thank you!”

“As our prime mentor at MassChallenge, Adi has provided us with invaluable assets! Through his dedication, professional input, guidance and expert business insight, we were able to achieve great progress with our business, obtain improved market focus, and polish our business development skills. Adi accompanied us closely, and we are sure to continue seeking his advice moving forward.”

“Adi was one of the most active mentors of the 2019 MassChallenge Israel cohort. He provided tremendous value mentoring numerous of our startups - across industries - in particular in the fields of product-market-fit, business strategy and marketing strategy. Adi is very professional, generous with his knowledge and ready to help. He would be an asset to any team or as an outside consultant.”

“Every consultation we have with Adi opens up our thinking about the whole way we work in our startup, and makes us think more clearly about the goal and the path to it, as fast as possible, on our way to product/market fit. 😎”

“Adi is amazing! He simply helps you aim at the target like a sniper 👌”

“Dear Adi, this is the place to say thank you for everything. Mainly for sharpening me, focusing me and helping me move the project forward and into the right channels. I left with a work plan and goals, as you promised! One of the things that made me really connect with you is that you were clear and sharp, and made sure to reflect the process and the milestones back to me. As far as I'm concerned, you are the project's mentor. From here, the burden of proof is on me. Thanks again for everything.”

“Adi is first of all a nice person. Second he’s a top-class words artist. Third he’s very sharp, understands people in the role of consumers. And fourth, he puts out hypotheses, not solid “facts” and makes you test them with the market.”

“It was a pleasure speaking with Adi about finding product-market fit for my business. He dropped a ton of knowledge bombs on me that I will be implementing to help my business grow! He is very knowledgable about so many aspects of scaling a startup and is very eager to help. I highly recommend Adi as it is rare to find someone who has both the knowledge and who really cares about your success!”

“Adi has been a great help on my journey! Not only for product market fit but also for all the other aspects of my startup. He is knowledgeable and always willing to put in the extra mile to help out. Highly recommend!”

“Adi mentored us as a part of the MassChallenge program. We've had our fair share of mentors along the way, and Adi clearly stands out. Adi's extensive experience as a Product Manager and his personality lead to a great process of mentorship which in turn allowed our startup to grow from a concept to a reality. From customer outreach, demoing, feature refinement and pilot planning to fund raising and partner relationships, Adi has great practical insights that empower the entrepreneur to drive their business forward.”

“Thank you Adi for your great guidance and mentoring! It's super helpful for our company! I highly recommend.”