Case study

From $10 million to $400 million: How Modum scaled a tech-driven wealth advisory firm with Addepar

Founded in 2019, Modum is a fast-growing independent wealth advisory firm based across two global cities, Mexico City and New York. Dedicated to serving ultra-high-net-worth families, Modum delivers personalized wealth management services based on deep client understanding.

Modum adopted a tech-first mindset from the start, using technology to enable growth, streamline operations, improve client communication and manage complex wealth structures. But, building a leading firm from scratch meant choosing the right tech partner to anchor the firm’s tech stack  was crucial.

“We are set up as a Registered Investment Advisor (RIA) but think of ourselves as a more holistic wealth management firm,” explains Gerardo Ledinich, Partner, Modum. “We act as our clients’ financial captain, managing investments while taking an active approach to planning across financial, estate and tax matters — ensuring clients’ needs are fully addressed. Our focus is on building a firm that can handle complexity for ultra-high-net-worth families.”

The firm has four partners, ten employees, and around 15 family relationships, each with unique structures and needs. Its mission is to deliver exceptional service, and from the outset, Addepar played a central role in its strategy.

FIRM

Modum

LOCATIONS

New York City Mexico City

PARTNERS

4

TEAM MEMBERS

10

YEAR ESTABLISHED

2019

TRANSITIONED OFF

Excel

AMOUNT OF ASSETS REPORTED IN ADDEPAR

$1.3B

THE CHALLENGE

Building growth potential from the beginning

Modum had to make major decisions early on when it came to technology and business-needs. “Four years ago, we weren’t even an RIA yet,” says Ledinich. “We were preparing our registration application and looking for the core technology to support the firm’s operations. We knew we had to choose our tech partner carefully to compete, and that it would be costly relative to the size of our business at the time — but it had to be that way.” 

Modum had a clear vision for where the firm was headed and needed to invest in the right tech to get there.

We act as our clients’ financial captain. Our focus is on building a firm that can handle complexity for ultra-high-net-worth families.

Gerardo Ledinich, Partner, Modum

Overcoming limiting reporting and analysis capabilities

In its early days, Modum had no scalable process for client reporting and relied on information from custodians, brokers, and fund administrators. “We didn’t really have a sustainable reporting workflow before Addepar,” says Ledinich. “Reports from third parties provided very limited information.”

These limitations created inefficiencies and bottlenecks, restricting the team’s ability to provide timely, detailed insights and deliver outstanding service.

Meeting complex needs and delivering quality client experience

As Modum added more families and sub-families, complexity grew exponentially. Each relationship required a different mix of services, entity structures, and levels of involvement. “No two families are the same,” explains Ledinich. “You need flexible tools to deliver the solutions these clients expect.”

The firm needed a platform that could handle complex structures, integrate held-away assets, and give both clients and advisors a complete view. Modum wanted to provide clients with a clear, transparent picture through professional, customizable reports.

“From the start, we knew our focus was on families with substantial wealth,” says Ledinich. “Client expectations in this segment are very high. We wouldn't have been able to compete using technology that wasn't up to standard. Having a client portal that is professional and connected to all the relevant data was essential.”

From onboarding to reporting to portfolio management, Addepar gives us the tools we need to do our jobs.

Saúl Rodríguez, Associate, Modum

With Addepar, Modum has experienced:

100x

more reports run per quarter

3400%

increase in AUA in 3.5 years

THE RESULT

Streamlining core operations and capabilities

Addepar sits at the center of Modum’s tech stack, streamlining workflows and centralizing operations. The firm relies on the platform for everything, from onboarding new clients to portfolio management, reporting and compliance.

“We use Addepar comprehensively,” says Saúl Rodríguez, Associate, Modum. “We log in every day to manage portfolios and track transactions. It’s not just about client experience, it’s central to how we run the investment process. From onboarding to reporting to portfolio management, Addepar gives us the tools we need to do our jobs.”

This consistency extends to oversight, as Ledinich explains: “I’m also the firm’s Chief Compliance Officer. Addepar helps us track and manage the information needed for regulatory reporting. Many reports require specific responses, and we use Addepar to generate the correct information efficiently.”

By embedding Addepar into its operations and workflows, Modum built the core infrastructure needed to scale. Ledinich explains: “Addepar is the single source of truth for many things. We use it for reporting, billing, compliance, portfolio management and the client portal.”

Enhancing client experience

Transparency has been a key outcome for the firm, with the client portal providing new levels of visibility. “Widgets in the client portal are magic,” says Rodríguez. “They’re flexible, responsive and genuinely useful.”

Custom analysis views also allow the team to tailor insights. “We can build whatever views we need,” adds Rodríguez. “For example, if we want to see returns by asset class, we can create that. If we need to adjust attributes or review data on a specific security, the analysis view makes it possible.”

Ultimately, the platform has strengthened trust. “Client response has been very positive, and we can measure it by how often they log in and use the platform,” says Ledinich. “It’s a transparency win: if a client wants to see their portfolio returns, holdings or transactions, they can go and see for themselves. Everything is there.”

Addepar’s impact on reporting has also been significant, enhancing systems with the platform’s drag-and-drop, customizable capabilities. Modum can now manage complex ownership structures with ease, giving clients the clarity and insights they expect.

“We had a client recently,” says Ledinich. “They were handling a complex inheritance with a mix of liquid assets and a complex holding structure, including some foreign entities and different currencies. Addepar helped us organize everything so all stakeholders could easily understand it. Having a clear setup that was flexible enough to handle this made a huge difference.”

It’s a transparency win: if a client wants to see their portfolio returns, holdings or transactions, they can go and see for themselves.

Gerardo Ledinich, Partner, Modum

Driving growth

By automating workflows and reducing manual work, Addepar has enabled Modum to scale efficiently while keeping overhead low. “By removing lots of the manual processes with Addepar, we are freeing up a lot of time. We’re using that time to focus on the business and growing our client base,” says Ledinich.

This operational efficiency allows the team to concentrate on higher-value activities, from building new client relationships to expanding services for existing families. Instead of hiring additional headcount or investing in separate technology, Modum can support growth with its existing team — creating clear cost savings while sustaining quality.

The results speak for themselves. “When we joined Addepar, client assets were about $10 million,” says Ledinich. “I’d say now, about three years later, they’re around $400 million, and we use Addepar to report on more than $1.3 billion across operating companies, private funds, partnerships, trusts and brokerage accounts. It’s good growth.”

Ledinich adds: “This growth has only been possible because we’ve had a tech mindset. We see a problem and our instinct is, how do we use tech to improve this? Since we’re very integrated with Addepar, the platform has really contributed to this approach.”

By embedding technology at its core, Modum has positioned itself to grow sustainably and competitively — proof that a modern, tech-first approach can transform a boutique firm into a trusted partner for ultra-high-net-worth families.