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July 23, 2025
Alexandre Lin
How Mariner Ultra uses SumIt to handle everything from simple to 150+ entity reporting
"SumIt was built around family offices and seemed to check every box we were looking for. Being able to easily handle complex clients and make reporting easy and efficient was the main driver. They were also willing to work with us to help shape the platform around our needs." 
— Alex Brown, CPA and Accounting Manager at Mariner Ultra
Solution Box
Challenge: Mariner Ultra – Family Office Services works with complex ultra-high-net-wealth individuals and families with intricate entity structures spanning family business entities, multiple estates, and more. Due to the custom needs and complexity of their clients, much of their work was done manually, making it extremely time-consuming and inefficient
Solution: The team at Mariner Ultra deployed SumIt after evaluating multiple solutions, choosing the platform specifically built for family offices that could handle their complex client needs while enabling continuous innovation
Result: Mariner Ultra has successfully deployed SumIt across 18 families, including complex clients with 150+ entities, enabling them to generate consolidated reports that previously took days or weeks with just a click of a button. The firm plans to continue rolling out SumIt to the rest of its client base, allowing its team to focus on data analysis and delivering superior client experiences

Customer Overview

Mariner Ultra – Family Office Services is a specialized division of Mariner focused on complex ultra-high-net-wealth individuals and families. The company's core business lies in estate planning and tax-saving solutions, with estate, tax, and trust planning serving as the cornerstone of every client relationship.


Their comprehensive service offering includes complex wealth management, estate, tax, and insurance planning, PTC administration, cash flow management, entity oversight, bill pay, consolidated reporting, and additional family office services.


Mariner Ultra currently has 60 team members, with 20 people dedicated specifically to the bill pay and financial reporting functions.

Challenges

Because of the custom needs and complexity of Mariner Ultra's clients, much of the work was previously done manually, making it extremely time-consuming and inefficient. The team needed a solution that could handle their clients' complex family and estate/business entity structures while supporting their commitment to remain at the forefront of technology and innovation.


"We needed a solution to handle the complex family and estate/business entity structures our clients had, as well as a partner that could keep up with our need to continually innovate," explains Alex Brown, CPA and Accounting Manager at Mariner Ultra.


Putting together consolidated reports for complex clients could take days, if not weeks, preventing the team from focusing on what the data was telling them and limiting their ability to deliver optimal client deliverables and experiences.

Evaluation Process

Mariner Ultra's goal was to remain at the forefront of technology and innovation, so they prioritized software solutions that would enhance accuracy, increase efficiency, and improve the overall client experience. The team conducted a thorough evaluation of multiple solutions before making their final decision.


Their main selection criteria focused on three key factors: the ability to drive innovation, willingness to work collaboratively with their team, and a track record of high customer satisfaction.

Solution

After evaluating multiple options, Mariner Ultra chose SumIt because it was specifically built around family offices. The platform's ability to easily handle complex clients and make reporting easy and efficient was the main driver in their decision.


"SumIt was built around family offices and seemed to check every box we were looking for. Being able to easily handle complex clients and make reporting easy and efficient was the main driver. They were also willing to work with us to help shape the platform around our needs," shares Alex Brown, CPA and Accounting Manager at Mariner Ultra.


The implementation process has gone smoothly, with SumIt's team prioritizing Mariner Ultra's specific needs and wants. Due to the custom nature of their business, there were specific integrations needed, which SumIt was able to deliver on, proving to be an excellent partner throughout the process.

Results and Impact

The efficiency gains since implementing SumIt have been substantial across the 18 families currently using the platform. Among these clients, Mariner Ultra has successfully migrated complex families with 150+ entities and can now generate reports that previously took days or weeks with just a click of a button. The firm is planning to continue rolling out SumIt to the rest of its client base based on these successful results.


"We've been able to migrate complex clients (150+ entities) and make reporting as easy as a click of a button," reports Phil Boscarino, CFP® and Director of Family Office Services at Mariner Ultra, referring to some of the most complex families among the 18 currently using SumIt.


The time savings on reporting have been dramatic. Where consolidated reports for complex clients previously required days or even weeks to compile, the team can now run custom reports instantly. This transformation has freed up significant time that was previously spent on manual report compilation.


"Instead of spending our time putting together the reports, we are able to focus on what the data is telling us, allowing us to deliver better client deliverables and a better client experience," explains Phil Boscarino.


The adoption among team members has been positive. While changing technologies always presents challenges and some initial hesitation, the team is fully bought in on the new system.

Looking Forward

Mariner Ultra continues to focus on innovation and growth opportunities. Their immediate priorities include further integrations with other software solutions and continuing to build out reporting customizations to enhance their service delivery.


As part of Mariner, the Ultra team benefits from additional resources while maintaining its specialized focus. The broader organization believes that as technology continues to improve, the best teams will utilize the best technology, and SumIt is viewed as a key component of that technology stack.


For other multi-family offices considering a similar technology transformation, Mariner Ultra's advice is simple: "Go for it."


The team is excited about the continued evolution of their SumIt implementation, with plans for additional integrations and platform refinements that will further enhance their ability to serve their complex ultra-high-net-wealth client base.

Mariner and Sumlt are separate entities. The comments by Sumlt are not to be construed as an endorsement of Mariner or any products or services provided by Mariner.

Mariner is the marketing name for the financial services businesses of Mariner Wealth Advisors, LLC and its subsidiaries. Investment advisory services are provided through the brands Mariner Wealth, Mariner Independent, Mariner Institutional, Mariner Ultra, and Mariner Workplace, each of which is a business name of the registered investment advisory entities of Mariner.

For additional information about each of the registered investment advisory entities of Mariner, including fees and services, please contact Mariner or refer to each entity’s Form ADV Part 2A, which is available on the Investment Adviser Public Disclosure website (www.adviserinfo.sec.gov). Registration of an investment adviser does not imply a certain level of skill or training.

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