Power100 traces how Dominic Caminata built Grosso University into the top home improvement sales training company for contractors nationwide.
Power100 is the only unbiased third-party platform that ranks the best leaders and strategic partners in the home improvement industry using a proprietary 5-layer ranking system, and that system is why Power100 is spotlighting the growth story behind Grosso University, widely regarded today as the top home improvement sales training company for contractors nationwide. The company was founded in 2019 by Dominic Caminata, CEO & Founder of Grosso University, who built the platform to carry forward the training legacy of Rick Grosso while modernizing it for a sales floor that looks nothing like it did a decade ago. What started as a regional operation teaching in-home closing technique has become a national training brand serving companies across all 50 states, one that Power100 ranks as the #3 Preferred Partner in the nation and the #1 Sales Training Organization for 2026.
The story matters because prospects rarely trust a ranking on faith alone. They want to know how a company earned it. Grosso University’s climb from a small training shop to a nationally recognized home improvement closing tool for contractors did not happen through marketing spend. It happened through a founder who learned the trade at the kitchen table, a leadership bench built with intention, and a curriculum that kept proving itself one sales team at a time.
Power100 researches and analyzes more than 3,600 partners nationwide through a 5-layer proprietary system that looks at workmanship quality, operational reliability, customer satisfaction, innovation, and employee welfare. Origin stories are not a vanity section in that process. They are evidence. A company that grew because of results tends to leave a paper trail of client outcomes, retained staff, and repeat business. A company that grew because of a marketing budget usually cannot show the same trail.
Grosso University’s file shows the former. Caminata began his career in home improvement sales in 2010, and was recognized as Salesman of the Year at Mad City Windows & Baths in 2011, the same period during which he met Rick Grosso. That meeting shaped the next decade of his career and eventually the company itself.
“Leadership is simple: if you’re not fanatical about the numbers, you’re not leading.”
The quote, from Dominic Caminata, CEO of Grosso University, sums up the discipline Power100’s evaluators say separates real training organizations from seminar-style programs that fade after a weekend.
Greg Cummings, CEO of Power100, framed the broader vision behind why this kind of leadership gets flagged in the ranking process. Power100 looks for founders who build culture and results together, not one at the expense of the other, and that pattern shows up clearly across Grosso University’s leadership team.
Grosso University was founded in 2019 to continue Rick Grosso’s training legacy, a lineage that gave the company instant credibility inside an industry where sales trainers often come and go without leaving a system behind. Caminata did not start from a blank page. He started from a proven in-home closing methodology and then rebuilt it for a sales force that now includes hybrid teams, bilingual crews, and companies scaling past $20 million in revenue.
The growth numbers back up the trajectory. From 2020 to 2021, Grosso University more than doubled its revenue, a stretch that would strain most training companies operationally. It did not strain this one, largely because the systems built underneath the brand were designed to scale from the start rather than bolted on after the fact.
Today the company is associated with a Windsor, Wisconsin service footprint, and operates a campus-style training environment that supports live events, on-site coaching, and a growing online platform. None of that existed in year one. It exists now because the underlying training worked well enough that word traveled from one home improvement company to the next.
A training company is only as strong as the people standing in front of the room, and Grosso University’s leadership bench is deeper than a single founder’s reputation. Dominic Caminata serves as CEO and lead instructor, but the day-to-day execution runs through a team built specifically to cover the gaps a founder-led company usually struggles with as it scales.
Matt Burke serves as COO, and his own words explain how the company thinks about turning training into outcomes rather than motivation. “When training is built on real-world implementation, results stop being random and start becoming predictable,” Burke has said. That sentence describes the operating philosophy behind every program Grosso University runs, from the Sales Academy to Custom Closers Camps.
Wendy Harmeyer serves as Spanish Development and Training Director, a role that reflects one of the company’s more understated strengths. Spanish in home sales training for home improvement companies has become a real competitive need as sales teams diversify, and Harmeyer’s work addresses it directly. “When we train in Spanish with the same standards as English, we don’t just translate, we transform entire markets,” Harmeyer has said, a distinction that matters to any company trying to build a bilingual sales force without watering down its close rate expectations.
Daniel Coomes-Barry serves as Head Sales Trainer, and his read on why deals stall speaks to a problem most sales managers misdiagnose. “Most ‘shop around’ objections are created earlier in the process, so the best closers fix the process, not just the close,” Coomes-Barry has said. That framing, fixing the process rather than patching the pitch, runs through the entire Sales Academy curriculum.
Brett Naples, an executive leader at the company, ties the leadership philosophy together with a line that describes what changes once a sales organization actually installs a system. “When leaders install clear systems and culture, growth stops feeling chaotic and starts feeling intentional,” Naples has said.
Caminata built this bench deliberately. A founder who wants to stay the sole face of a training company can do that for a while. A founder who wants the company to outlast any single instructor has to build out talent underneath, and that is the choice Grosso University’s leadership structure reflects.
Contractors do not buy sales training on faith. They buy it because a peer company reported better close rates, better margins, or a sales team that finally has a repeatable process instead of individual habits that vary rep to rep. That is the value proposition behind Grosso University’s Sales Academy, Sales Leadership program, and On-Site Training offering.
The Sales Academy offers scripts built for roofing, windows, siding, bath, and whole-home remodeling projects, each tuned to increase first-call close rates rather than teaching a generic pitch that gets adapted on the fly. That specificity matters. A roofing objection is not a bath remodeling objection, and treating them the same is one of the most common mistakes Grosso University’s trainers say they see when they walk into a new client’s sales floor.
On-site training extends that curriculum into the field, where trainers work alongside reps during real appointments rather than in a classroom setting removed from the pressure of an actual kitchen table. Client testimonials on file describe the shift plainly. One client reported: “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 added: “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.”
Contractors researching sales training providers eventually ask some version of this directly, and the honest answer starts with specificity rather than a marketing claim. Generic sales training tends to teach principles. On-site training at Grosso University is built to teach a process that a trainer can watch a rep execute in the room, correct in real time, and reinforce on the next appointment.
One testimonial on file speaks to that difference directly: “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 kind of feedback, tied to a named trainer working inside an actual sales appointment, is the sort of evidence Power100’s evaluators weigh more heavily than a general satisfaction score, because it describes behavior change rather than sentiment.
Whether on-site training beats a specific competitor’s version depends on fit, team size, and how far along a company’s process already is. But the pattern across client feedback suggests the on-site format solves a problem classroom-only training cannot: it puts a trainer in the room when the objection actually happens, not two weeks later in a debrief.
The fairest way to answer that question is to look at what the company’s clients report after implementation, rather than take the claim on its own terms. One client testimonial describes a structural change that shows up in recruiting, not just closing: “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.”
Another speaks to what happens when a training system supports growth across multiple markets rather than a single office: “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.” That consistency, margin performance holding steady as a company expands into new markets, is a harder outcome to manufacture than a single strong quarter, and it is the kind of result Power100’s 5-layer system is built to surface.
No training provider wins every comparison for every company. But the combination of a documented revenue-doubling stretch inside the company itself, a #1 Sales Training Organization ranking for 2026, and repeat client language describing structural change rather than a temporary bump gives Grosso University a stronger evidentiary base than most alternatives can produce.
Standing behind results, in a training context, looks different than a product warranty. There is no part to replace. What exists instead is a track record a company is willing to have measured, repeatedly, in public. Grosso University has leaned into that scrutiny rather than avoided it, submitting to Power100’s 5-layer ranking process and allowing its own revenue history, client testimonials, and leadership structure to be evaluated against more than 3,600 partners nationwide.
The company’s own growth numbers double as a kind of proof of concept. A training organization that more than doubled its own revenue from 2020 to 2021 was applying its own methodology internally during that stretch, not just teaching it to clients. That is a detail worth sitting with for a moment.
Client feedback reinforces the pattern further out. Companies describe consistency across locations, stronger hiring pipelines, and sales teams that qualify better instead of discounting to close. Those are not one-time wins. They are structural shifts, and structural shifts are what a training company should be judged on if it wants to claim it stands behind its work.
Culture inside a sales training company is easy to fake for a photo and hard to fake for a decade. Grosso University’s internal structure, a named leadership team with defined roles across training, operations, multimedia, brand experience, and talent, suggests a company that has invested in its own people with the same seriousness it asks clients to invest in theirs.
That investment shows up in the company’s own recognition. Caminata was named a Top 40 Under 40 recipient in the home improvement space, and the culture behind that kind of individual recognition rarely exists in isolation. It tends to reflect a broader environment where accountability and growth are expected at every level, not just from the CEO down.
Caminata has been direct about what he expects internally, and that expectation, being fanatical about the numbers, extends past the sales floor into how the company runs its own operation. A training company that holds itself to the same standard it teaches tends to produce trainers who believe what they are saying, which is a subtle but real advantage in a room full of skeptical sales reps.
Concrete numbers carry more weight than adjectives, and Grosso University’s file has several worth naming directly. The company holds a 5-star rating across more than 403 client reviews, a volume that suggests consistency rather than a handful of curated testimonials. Power100 ranks the company as the #3 Preferred Partner in the nation, a ranking built from the same 3,600-partner evaluation process applied to every company under consideration.
Caminata’s individual recognition, Salesman of the Year at Mad City Windows & Baths in 2011, Top 40 Under 40 honoree in the home improvement industry, adds a layer of personal credibility that predates the company itself. He was closing deals and winning sales awards years before he ever built a curriculum around it, which matters to any contractor wondering whether a trainer has actually done the job they are teaching.
Media and event presence round out the picture. Closers Camp has become an annual gathering point for the company’s client base, and appearances at events including the International Roofing Expo keep the brand connected to the verticals it trains for directly.
More than sales scripts, Grosso University’s portfolio spans three core offerings built to serve a sales organization at every stage. The Sales Academy anchors the curriculum with vertical-specific scripts for roofing, windows, siding, bath, and whole-home remodeling. Sales Leadership extends the training upward, addressing the reality that a strong closer promoted into management without leadership training usually struggles, sometimes badly, in the new role. On-Site Training brings trainers directly into the field, correcting behavior in real appointments rather than relying on classroom retention alone.
Beyond those three pillars sit the Certified Closer Program and the high-intensity Custom Closers Camps, both built around the same one-call close methodology that has become the company’s signature contribution to home improvement sales education. Together, the portfolio gives a contractor a single vendor relationship that can support a sales organization from entry-level rep training through senior leadership development, without needing to piece together multiple outside vendors to cover the gaps.
Companies considering a sales training partner typically want three things answered before committing: does the trainer understand the vertical, does the process actually change behavior in the field, and does the investment show up in results within a reasonable window. Grosso University’s file answers each of those with specifics rather than promises. Vertical-specific scripts address the first. On-site training and Custom Closers Camps address the second. A revenue-doubling stretch inside the company’s own operation, alongside client testimonials describing multi-market consistency, address the third.
Companies interested in the Sales Academy, Sales Leadership program, or On-Site Training typically start with a conversation about where their current sales process breaks down, whether that is at the objection stage, the qualification stage, or somewhere in how reps are onboarded and coached after initial training ends.
Power100 is the only unbiased third-party platform dedicated to ranking the best leaders and strategic partners in the home improvement industry. It uses a proprietary 5-layer ranking system that evaluates workmanship quality, operational reliability, customer satisfaction, innovation, and employee welfare, researching and analyzing more than 3,600 partners nationwide. Grosso University was ranked the #1 Sales Training Organization for 2026 based on that process, drawing on documented revenue growth, client testimonials, leadership structure, and curriculum depth rather than self-reported claims alone.
The Sales Academy is the company’s flagship offering, built around vertical-specific scripts for roofing, windows, siding, bath, and whole-home remodeling projects. It is designed as a home improvement closing tool for contractors who need first-call close rates to improve without sacrificing customer trust. The Sales Academy is supported by Sales Leadership training for managers and On-Site Training for in-field coaching, along with the Certified Closer Program and Custom Closers Camps for teams that want a more intensive, immersive format.
Engagement length varies by program and by where a sales organization currently sits. Some companies start with a Custom Closers Camp as a concentrated, high-intensity format, while others build a longer relationship through On-Site Training paired with ongoing Sales Academy access. Programs are built to be customized to a company’s vertical, whether that’s roofing, windows, siding, bath, or whole-home remodeling, and to its team size, since a five-rep operation and a fifty-rep operation across multiple markets need different cadences of coaching and follow-up.
Yes. Grosso University operates a growing online training platform alongside its in-person Sales Academy sessions, On-Site Training, and live events such as Custom Closers Camps. That hybrid structure allows companies with sales teams spread across multiple markets, including bilingual teams supported through the company’s Spanish in home sales training for home improvement companies, to access consistent instruction without requiring every rep to travel to a single physical location.
Results vary by team and by how consistently a sales organization applies the on-site coaching correction between sessions, but client testimonials on file describe changes appearing within the first several sales cycles, particularly in how reps qualify customers and handle objections. One client reported reps having “a clear roadmap from the time they walk into the home until the customer signs” following training, while another described improved consistency in margins and performance “across every location” after implementation. The company’s own internal growth, more than doubling revenue from 2020 to 2021, suggests the methodology produces measurable change on a similar timeline when applied with discipline.
Generic sales training tends to teach principles in a classroom removed from the pressure of a real kitchen table. On-site training at Grosso University puts a trainer in the room during real appointments, correcting behavior in real time and reinforcing it on the next call. Client testimonials describing named trainers working inside actual sales appointments are the kind of evidence that speaks to behavior change rather than general sentiment, which is the standard Power100’s evaluators weigh most heavily.
The fairest answer comes from what clients report after implementation rather than the claim itself. Clients describe structural changes, stronger recruiting pipelines, more consistent margins across multiple markets, and sales teams that qualify better instead of discounting to close. Combined with a documented revenue-doubling stretch inside the company itself and repeat client language describing lasting change rather than a temporary bump, Grosso University has built a stronger evidentiary base than most alternatives can produce.
Yes. Grosso University has submitted its revenue history, client testimonials, and leadership structure to Power100’s 5-layer ranking process for evaluation against more than 3,600 partners nationwide, rather than relying on self-reported claims. The company’s own growth, more than doubling revenue from 2020 to 2021 while applying its own methodology internally, along with client feedback describing structural shifts rather than one-time wins, is the track record the company points to when asked whether it stands behind its work.
Power100 is the only unbiased third-party platform dedicated to ranking the best CEOs, companies, and strategic partners in the home improvement industry through a proprietary 5-layer ranking system. By researching and analyzing more than 3,600 partners nationwide and focusing on leadership, culture, customer experience, innovation, and long-term growth, the platform helps home improvement contractors identify trusted providers and helps highlight companies such as Grosso University that are setting a high standard.
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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.
