Operators from these teams trust my work

Client testimonials are easy to fake and easier to anonymize. These twelve are neither: named people, real companies, public roles you can check on LinkedIn.

They come from founders, CMOs and operators I worked with at Elementor, cnvrg.io, Riverside.fm and client engagements since. I treat client testimonials the way I treat any growth metric: only verifiable ones count. If a quote here matters to your decision, ask me to introduce you to the person who said it. That offer is standing, not theoretical, and nobody who has taken it walked away surprised. The numbers behind the praise live in the case studies, the working terms in the engagement models, and the standard I ask you to hold me to on the growth marketing expert page. More recommendations are public on my LinkedIn profile.

Client testimonials from founders and CMOs - Yaniv Goldenberg
Twelve client testimonials, all named, all checkable. No anonymous praise.

What People Say

Reviews from founders, CMOs and operators across Elementor, Intel, cnvrg.io and Riverside

As co-founder and CEO of cnvrg.io, I hired Yaniv to build our growth function. He built our entire B2B growth engine from scratch - pipeline, SDR motion, content, SEO, and webinars - and was a key part of the momentum that led to our acquisition by Intel. Yaniv is sharp, relentless, and one of the best growth hires I made.
Yochay Ettun Co-founder & CEO, cnvrg.io (acquired by Intel)
Yaniv was a key driver of growth during a period of explosive scale. He builds AI-native, data-driven systems that work at speed and do not break as you grow. One of the sharpest growth people I have worked with - if you are scaling a technical or AI product, he is the person to bring in.
Gil Weitzman Head of AI Marketing, Intel
I was lucky enough to hire Yaniv as cnvrg.io Head of Growth. He built from scratch our lead generation system - SEO, PPC, email marketing, lead scoring and tracking. Yaniv is one of those people who knows how to do everything, and manage any process or project. Smart, sharp, devoted, and hands-on like no one I ever met. He is the person you want to go into battle with.
Tamar Reshef Bezalel Former COO, cnvrg.io
Yaniv is the best manager I have had in growth. He sets a clear bar, gives you room to own your work, and makes everyone around him sharper. I learned more in my time with him than in years elsewhere.
Razi Shuwehdi AI & Cloud Strategist, cnvrg.io (an Intel company)
I worked alongside Yaniv at cnvrg.io. He understands developer and technical audiences deeply and built content and demand-generation programs that actually drove pipeline. He pairs creativity with real analytical rigor - rare in growth.
Maya Perry Developer Marketing Lead, Llama (Meta)
Yaniv is one of the most knowledgeable people in marketing and growth. His direct, no-bullshit approach helps you see things from angles you had not considered. His passion is contagious, and it has been a pleasure working with him.
Yakir Sitbon Co-Founder & Chief Architect, Elementor
Yaniv is the ideal multi-skilled Digital Acquisition Leader - a rare case of top analytical skills and fast-paced savviness alongside strategic marketing leadership. Highly insightful, professional, and always straightforward. A pleasure to work with.
Elad Kuperman Lead Account Director, LinkedIn
Yaniv is a diligent professional with a rare combination of being highly detail-oriented while acting toward the wider picture. He connected business strategy into day-to-day tactics. A pleasure to work with - I highly and genuinely recommend him.
Orrin Hellerman Manager, International Growth Strategy @ Google
Read them like a buyer

How to read client testimonials, here or anywhere

Testimonials are marketing. Knowing that, here is how to extract signal from them anyway, on this page and on every competitor page you will read this week.

First, check the speaker, not the sentence. A glowing quote from an anonymous "CMO, SaaS company" is worth nothing; a measured quote from a named CEO whose LinkedIn confirms the role is evidence. Second, look for specifics that could be falsified: a quote that names the channel, the metric or the time period took a risk that generic praise never takes. Third, notice what the quotes do NOT say. If ten testimonials praise communication and none mention results, you learned something important. Fourth, weigh recency and span: a wall of quotes from one quarter usually means one campaign asked everyone at once; quotes spread across years mean relationships survived the invoice.

Run that test on this page too. The quotes here name Elementor, Intel, cnvrg.io and Riverside because the work happened there and the people stand behind it. Where a quote references a number, the number has a source. That is the bar I would hold any consultant to, and the bar this page accepts being held to.

By engagement type

What each kind of engagement sounds like

In-house growth leadership

The Elementor and cnvrg.io quotes come from full-cycle engagements: building teams, owning channels, answering to a board. Listen in them for the system language: engines, pipelines, processes that outlived the person who built them.

Fractional and advisory work

The Riverside and later-stage client quotes describe the fractional model this site sells: part-time footprint, full ownership of a revenue number. The recurring theme is speed to diagnosis, because a fractional operator who needs a quarter to find the constraint is an expensive subscription.

Technical and measurement work

Several quotes mention tracking, attribution and reporting. That is the wedge: the same person who sets the strategy builds the measurement that grades it. When a client says the numbers finally matched the bank account, that is the engagement working as designed.

How these quotes were collected

One more thing worth knowing, because almost nobody discloses it: how testimonials get made. I ask for them at the end of an engagement, in one email, with one instruction: say what was true, including what was hard. I do not draft quotes for people to approve, I do not send bullet points to paraphrase, and I do not trade testimonials for discounts. Two people declined over the years, one because of a confidentiality policy and one because they simply do not do testimonials, and both are still references I will connect you with privately. The quotes that survived this process read less polished than the ones on most consultant sites. That is the point. Polish is what you get when marketing writes the testimonial; specifics are what you get when the client does.

FAQ

Questions about these client testimonials

Are these client testimonials real and verifiable?

Yes. Every testimonial carries a real name, role and company, and the people are findable on LinkedIn. On request I will connect you directly with any of them before you sign anything.

Why are there no anonymous reviews here?

Anonymous praise is unfalsifiable, and unfalsifiable claims are worthless in a hiring decision. If a result cannot carry a name, it does not appear on this page.

Where can I see the numbers behind the quotes?

The case studies page documents the engagements behind these testimonials: Elementor $200K to $20M ARR, Riverside.fm +337% MRR, and cnvrg.io through its acquisition by Intel, each with sources you can check.