Putting culture first at Prospera

Putting culture first at Prospera
Tarah Williams
“Culture and strategy aren’t separate for us; they’re the same thing,” Prospera president Tarah Williams said.
NOV 17, 2025

For Prospera Financial Services president Tarah Williams, it all comes back to maintaining a strong culture − even when it’s a matter of money. 

Seriously.  

“We’re selective in who we bring on, because culture matters just as much as AUM. Success here isn’t about joining a platform, it’s about joining a community,” Williams says. 

Culture is non-negotiable when it comes to working for − or with − Williams. That’s the way it’s been since she was named president of the hybrid RIA in October 2022. 

It’s also a primary reason why the firm has taken off since she took the position after two decades in the industry. Prospera has grown more than 40 percent in the past three years while maintaining a Net Promoter Score of 90 percent, proving that culture and performance can grow together. 

“When I stepped into the role,” Williams says, “my vision was to honor what makes Prospera special − our boutique service model and genuine sense of community − while preparing the firm for the future. That meant investing intentionally in our people, processes, and technology so we could scale without losing our personal touch.” 

Scaling with sincerity
 

Prospera’s niche is “intentional independence,” according to Williams. They’re big enough to offer turn-key support, yet small enough to know every advisor by name, and what makes them tick. That combination, or what she refers to as “scale with sincerity,” has allowed the firm to maintain its growth trajectory.  

Right now, the firm consists of 230 advisors managing more than $28 billion in assets. But more advisors are coming to Prospera for the gold-standard service of a boutique firm with the resources and confidence of a broad, national platform. 

It’s not a one-way street, of course. Williams is going after advisors as well, as the necessity to scale has turned into a matter of survival in a wealth management business that has become viciously competitive. This competitive environment is in part thanks to a tidal wave of private equity players who, to put it mildly, care far more about the bottom line than sincerity. 

Back in April of this year, for example, Prospera acquired the St. Louis, Missouri-based boutique firm Cutter & Company. Aside from being an independent broker-dealer and RIA overseeing $2 billion in client assets, Cutter also provided Prospera with an insurance agent and an increased Midwest presence. 

Said Cutter CEO Deborah Castiglioni at the time: “Our shared values of client service and advisor-centric decision-making provide clear cultural synergies with excellent opportunities for future growth.” 

Prospera agreed to provide a curated tech stack, family office resources, and high-touch operational resources. But it was a matter of culture that got the deal done. On both sides.  

Similarly, when Prospera picked up $650 million California-based advisor Painter Smith & Amberg Inc. a year earlier, its founder, Charles Painter, pointed to Prospera’s commitment to a “family-like culture” in the press release announcing the deal. 

“Our growth will never come at the expense of culture,” Williams says, adding, “boutique isn’t a size, it’s a mindset and it means staying close, staying personal, and ensuring our advisors and employees feel seen and supported.” 

All in the family office
 

Right before Prospera announced the Painter Smith & Amberg deal in early 2024, Williams unveiled the Prospera Generational Wealth platform. The program gives advisors access to trust and estate planning tools, generational wealth resources, and concierge-style services that simplify complex planning for multi-generational families. 

Williams calls the platform “one of our most exciting developments.” 

“We have an Advanced Planning Council that is education-based, and a monthly meeting of the minds for advisors to share ideas and best practice cases. We’re now layering in expanded planning integrations through Prospera Generational Wealth, so advisors can serve sophisticated households with efficiency, care, and confidence − all within the Prospera ecosystem,” Williams says. 

As to how AI will impact Prospera’s ecosystem, Williams sees the blossoming technology as a way to make the firm’s people – and its culture − better.  

“As with any tool or initiative we roll out, it must support our ability to serve our advisors through a thoughtful adoption. We’re building an AI roadmap that blends quick wins with long-term transformation, using AI to enhance workflows, deepen client insight, and increase advisor capacity,” Williams says.  

Her goal is to be fully AI-operational by June 30, 2026, which means every department and employee will have the tools, training, and confidence to use AI effectively in their daily work.  

Emphasized Williams: “At Prospera, technology will never replace connection; it will amplify it.” 

On PE, patience, and (of course) culture
 

Williams readily admits the recent influx of PE money into the wealth management industry has brought tremendous attention to what was previously a fairly staid business. In response to the heightened competition, Williams says she is trying to take a measured and intentional approach.  

“We’re focused on sustainable growth, cultural alignment, and long-term value creation − ensuring that any opportunity we consider strengthens our foundation and supports our advisors,” Williams says. “Our priority is clear: to keep building a firm that endures and thrives, regardless of market cycles.”  

The toughest part of the process, in her opinion, is balancing the blistering pace required in this white-hot market with the patience needed to build the firm to match her vision. Leadership in this environment means moving quickly without losing connection, according to Williams. 

“Our advisors inspire me every day with their entrepreneurial spirit, and our employees bring heart and excellence to everything they do,” says Williams. “Seeing those worlds connect − advisors thriving, employees fulfilled, clients well served − is what it’s all about.”  

Added Williams, perhaps unable to resist: “Culture and strategy aren’t separate for us; they’re the same thing.” 

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