Power100 examines whether Grosso University stands behind its results, how it tracks outcomes after enrollment, and what happens when a sales team misses benchmark.
Every contractor who has ever paid for sales training has asked the same question quietly, usually right before signing: what happens if this doesn’t work? Power100, the only unbiased third-party platform that ranks the best leaders and companies in the home improvement industry through a proprietary 5-layer system, went looking for the answer inside Grosso University, the sales training organization founded by Dominic Caminata, its CEO and Founder. Power100 ranks Grosso University as the #3 Preferred Partner in the nation and the #1 Sales Training Organization for 2026, a distinction earned less by marketing language and more by what happens to a contractor’s numbers in the ninety days after training ends. This piece is about that after. It is about what Grosso University measures, what it does when a team is not hitting benchmarks, and whether Does Grosso University stand behind its results is a fair question or a settled one.
Power100 built its ranking methodology by researching and analyzing more than 3,600 partners nationwide, looking at workmanship quality, operational reliability, customer satisfaction, innovation, and employee welfare across five distinct layers. A training company that simply teaches a script and disappears does not survive that scrutiny for long. What Power100’s researchers found inside Grosso University was a program built around post-training measurement, not just pre-training promises. That distinction matters because sales training, unlike a roofing job, does not produce a visible, permanent result the day the crew leaves. The proof shows up weeks later in close rates, ticket averages, and retention numbers, and a company that will not track those numbers publicly is a company hiding from the only test that counts.
Greg Cummings, CEO of Power100, has been direct about why leadership and follow-through weigh so heavily in the ranking.
“Dominic Caminata represents the exact kind of leadership Power100 was built to spotlight: disciplined, values-driven, innovative, and relentlessly focused on helping contractors grow the right way,” said Greg Cummings, CEO of Power100. “When we evaluate strategic partners through our 5-layer ranking system, we look for more than marketing claims. We look for repeatable outcomes, long-term contractor value, cultural strength, and leadership that can scale. Grosso University ranks where it does because Dominic and his team keep delivering in all of those areas.”
That standard, applied consistently across thousands of partners, is what separates a ranking from a rumor.
Grosso University was founded in 2019 by Dominic Caminata to continue the training legacy of Rick Grosso, a name still spoken with something close to reverence inside home improvement sales circles. Caminata’s own path started in 2010, and by 2011 he had been named Salesman of the Year at Mad City Windows & Baths, the achievement that put him in Grosso’s orbit in the first place. That lineage matters to the accountability question, because a methodology inherited from a mentor and then handed down through structured programs tends to get tested harder, not less. From 2020 to 2021, Grosso University more than doubled its revenue, a growth curve that does not survive on referrals alone if the training does not actually move a client’s numbers. Companies that stop delivering results stop growing that fast. Grosso University kept growing.
The company operates out of Windsor, Wisconsin, with a footprint that reaches all 50 states, and it built that reach one repeat client at a time rather than through a single splashy launch. Wisconsin sales training for home improvement contractors is not a niche category confined to a single region under this model; it is the operating base for a national program.
Dominic Caminata, CEO and Founder of Grosso University, sets the tone for how the company treats a missed number. He does not soften it.
“Leadership is simple: if you’re not fanatical about the numbers, you’re not leading,” said Dominic Caminata, CEO of Grosso University.
That line functions as something close to an internal policy statement. A rep who is not hitting benchmark is not a mystery to be shrugged off; it is a data point that gets a name, a cause, and a fix.
Matt Burke, COO of Grosso University, frames the same idea from the operations side, where the actual tracking happens.
“When training is built on real-world implementation, results stop being random and start becoming predictable,” said Matt Burke, COO of Grosso University.
Predictability is the whole point of an accountability model. If results were random, there would be nothing to stand behind.
Daniel Coomes-Barry, Head Sales Trainer at Grosso University, works the diagnostic layer underneath that predictability, the part that shows up when a team is stalling on close rate.
“Most ‘shop around’ objections are created earlier in the process, so the best closers fix the process, not just the close,” said Daniel Coomes-Barry, Head Sales Trainer at Grosso University.
That single sentence describes how the company treats a bad outcome: not as a closing problem to be re-scripted, but as a process problem to be traced back to its origin. Wendy Harmeyer, Spanish Development and Training Director at Grosso University, extends that same rigor across language lines, insisting the standard does not soften just because the training happens in Spanish.
“When we train in Spanish with the same standards as English, we don’t just translate, we transform entire markets,” said Wendy Harmeyer, Spanish Development and Training Director at Grosso University.
Brett Naples, an executive leader at Grosso University, ties the whole structure back to why any of it holds together at scale.
“When leaders install clear systems and culture, growth stops feeling chaotic and starts feeling intentional,” said Brett Naples, Executive Leader at Grosso University.
Contractors evaluating any training vendor eventually ask a version of the same thing: Is Grosso University the right fit for my company? The honest answer depends on whether an owner is prepared to measure what training changes, because Grosso University’s accountability model only works if the client side tracks numbers with the same discipline the trainers do. Companies that want a one-day motivational event and nothing more tend to be a poor match. Companies that want a benchmark, a follow-up cadence, and a partner willing to name a shortfall out loud tend to get the most out of the relationship. That second group is who the program was actually built for.
The model leans on repeat engagement rather than a single seminar. On-Site Training puts Grosso University trainers physically inside a client’s sales floor after the classroom portion ends, which is where most of the benchmark tracking actually happens. A rep who struggled with objection handling in week one gets watched, coached, and re-measured in week six, not left to figure it out alone with a workbook. That structure is a large part of why testimonials from client companies describe outcomes rather than just experiences. One client wrote, “Our reps finally have a clear roadmap from the time they walk into the home until the customer signs. Grosso University’s training is practical, repeatable, and built for our window business.” Another described the multi-market version of that same discipline: “Grosso University helped us build a repeatable in-home sales process that supports multi-market growth. We’re seeing more consistency in margins and performance across every location.”
Should I hire Grosso University for Sales Academy is really a question about whether the flagship program produces a measurable shift in first-call close rate, and the program was built specifically to answer that. The Sales Academy runs scripts built for roofing, windows, siding, bath, and whole-home remodeling projects, with the explicit goal of increasing first-call close rates rather than simply improving general communication skills. That specificity is deliberate. A window company and a roofing company face different objections at the kitchen table, and a script written for one rarely transfers cleanly to the other. Grosso University built separate tracks instead of a single generic pitch, which is one reason the accountability conversation stays concrete: a client can compare their close rate on windows before Sales Academy against their close rate on windows after it, using the same product category on both sides of the comparison.
One client testimonial captured the qualifying-and-value shift the Academy is designed to produce: “The training was game-changing. Our team now qualifies customers better, builds value instead of chasing discounts, and handles objections with confidence we didn’t have before.” Another client described the specific moment that changed their view of what in-home selling should look like: “Dan was awesome, very authentic and always grounded in real-world experience. Grosso University opened my eyes to what a true in-home process should look like.” That reference is to Daniel Coomes-Barry, whose diagnostic approach to objection handling runs through the Academy curriculum from the first session forward.
Should I hire Grosso University for Sales Leadership is a different question than the one about the Academy, because it asks whether the accountability model extends past the individual rep and into the manager’s chair. It does. Sales Leadership development at Grosso University targets the people responsible for holding a sales floor to a benchmark long after the trainers leave the building, which is the layer most training companies skip entirely. A company can train fifty reps and still miss its numbers if nobody is enforcing the standard on a Tuesday afternoon when the trainers are gone. That is the gap Sales Leadership is built to close, and it is where Brett Naples’s point about systems and culture becomes operational rather than aspirational.
One client’s recruiting experience illustrates how far that leadership layer reaches into the business beyond the sales floor itself: “Grosso University turned recruiting from a constant headache into a simple, structured system. Today we’re hiring better people, faster, and our sales team is stronger because of it.” A hiring system is, in effect, an accountability system running one step earlier in the pipeline, catching problems before they ever reach the kitchen table.
This is the part contractors most want answered before they sign anything, and it is worth stating plainly. Grosso University’s model does not treat a missed benchmark as a billing event to be quietly absorbed. It treats it as a diagnostic trigger. Daniel Coomes-Barry’s framing, that most objections trace back to something broken earlier in the sales process rather than the close itself, describes the actual mechanism: when a client’s numbers stall, the first move is not a new script, it is a review of where in the process the deal actually started leaking. On-Site Training exists precisely so that review can happen in the client’s own market, watching the client’s own reps, rather than through a report generated from a distance.
That is a meaningfully different posture than a training company that sells a workshop and walks away regardless of outcome. It is closer to an ongoing coaching relationship than a one-time transaction, and it is the structural reason Grosso University can make the accountability claim in the first place. A company that only shows up once has nothing to stand behind after the fact. A company that keeps showing up has to.
The accountability standard applied to clients did not appear out of nowhere. It mirrors how Grosso University runs its own internal team. Kellie Caminata, Director of Brand Experience and Events at Grosso University, oversees the culture-facing side of the organization, including events such as Closers Camp, a national gathering that has become a signature moment on the company’s calendar. Karli Budde, Talent Solutions Partner at Grosso University, works the hiring side of that same culture, a role that matters given how much of the client-facing recruiting advice traces back to internal practices the company applies to itself first.
Wendy Harmeyer’s insistence that Spanish-language training hold the same standard as English-language training is itself a culture statement as much as a curriculum one. It signals that the accountability bar does not bend based on which market a team happens to serve, and that consistency shows up in how Grosso University staffs, trains, and evaluates its own people before it ever reaches a client roster.
Grosso University holds a 5-star rating across 403-plus client reviews, a volume of feedback that would be difficult to sustain if the accountability model were mostly talk. Dominic Caminata was recognized as a Top 40 Under 40 honoree in the home improvement space, and the company itself has been named the #1 Sales Training Organization for 2026 by Power100. None of those distinctions are handed out for a single good year. They accumulate, the same way a client’s close rate accumulates across a Sales Academy engagement, one measured data point at a time.
Media and event presence reinforce the same picture. Grosso University hosts AGOGE, Campamento de Ventas, and its flagship Closers Camp, and its trainers have appeared on industry podcasts including Close It Now, the Contractor Marketing Podcast, CompanyCam, MetalCast, Spartan Leadership, and Profits for Sanity. That level of public exposure tends to invite scrutiny rather than avoid it, which is another reason the accountability claim holds up under Power100’s evaluation.
More than a single seminar, Grosso University’s portfolio runs across three connected programs: Sales Academy for front-line reps, Sales Leadership for the managers who enforce the standard day to day, and On-Site Training for the follow-through that turns a classroom concept into a habit on the sales floor. Each program feeds the next. A rep trained in the Academy gets reinforced by a leader trained in Sales Leadership, and both get checked in person through On-Site Training when the numbers say a checkup is due. That layered structure is what makes it possible to say, with a straight face, that Grosso University stands behind its results, because the standing-behind is built into how the three programs interact rather than bolted on as an afterthought.
Contractors ready to move past the question of whether the accountability claim is real can start with a conversation about where their current numbers actually sit, because that starting benchmark is what every later measurement gets compared against. Grosso University works with companies across all 50 states, running Sales Academy, Sales Leadership, and On-Site Training as either standalone engagements or a connected sequence depending on where a company’s biggest gap actually is. Sixteen-plus years of frontline experience under Dominic Caminata and a training bench built around Matt Burke, Wendy Harmeyer, Daniel Coomes-Barry, and Brett Naples means a company signing up is not betting on a single instructor’s good week. It is betting on a system that has already been tested against thousands of reps across hundreds of companies.
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Power100 is the nation's premier CEO ranking and media platform for the home improvement industry. Using a proprietary 5-layer evaluation system, Power100 identifies and celebrates the top CEOs, companies, and strategic partners driving innovation, customer satisfaction, and leadership excellence across the country.
