Top RIAs in Boston 2026: The 15 Largest Wealth Management Firms by AUM

Boston has been a center of American finance since before the country had a stock market to speak of, and that history still shapes its wealth management landscape today. The city is home to multi-generational family offices founded before the Civil War alongside fast-growing independent firms that have arrived with billions in assets on day one. It is also headquarters to giants of institutional asset management, from mutual fund pioneers to some of the largest pension and endowment managers in the world, which means a true ranking of Boston's client-facing wealth managers has to look past total assets under management and dig into who a firm actually serves.

This report ranks the 15 largest Registered Investment Advisers headquartered in Boston proper that primarily serve individuals, families, and similar private clients, using data from AdvizorPro's advisor intelligence platform. It expands on our original Boston ranking with five additional firms and a full explanation of how the list was built, so readers can see not just who made the cut but why.

This ranking includes only Boston-headquartered advisory firms. Every firm below also has a live, public profile on AdvizorPro's platform, which readers can click through to for a deeper look at that firm's data. Firms are ranked by total AUM as reported to AdvizorPro. Data reflects each firm's most recent Form ADV filing as of September 2026 unless otherwise noted.

The Full List

Data as of September 2026
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1. SCS Capital Management LLC | $48.65B AUM

SCS Capital Management, doing business as SCS Financial, is a Boston-based investment firm founded in 2002 that serves ultra-high-net-worth families and select institutions through a conflict-free, open-architecture model. SCS became a Focus Financial Partners affiliate as it scaled into one of the largest wealth managers headquartered in New England.

Key Insights:

• AUM grew roughly 13% year over year, reaching $48.65 billion across 213 employees and 79 investment professionals in 23 offices.
• HNW clients account for 62.5% of assets ($30.39 billion), with pooled investment vehicles making up most of the remainder.
• Serves 589 advisory clients with an average account size of $68.2 million.
• Custodial assets are split primarily across Fidelity ($13.08 billion), Pershing ($5.85 billion), and Charles Schwab ($5.07 billion).
• Technology stack includes Addepar, Salesforce, Broadridge, and SS&C.

2. RWA Wealth Partners | $19.80B AUM

RWA Wealth Partners is a woman-led national boutique formed in 2023 through the union of three established firms: Ropes Wealth Advisors, Adviser Investments, and Polaris Wealth Advisory Group. RWA has been ranked among Barron's Top 100 RIAs.

Key Insights:

• AUM increased about 15% year over year to $19.80 billion, supported by 178 employees and 73 representatives across 22 branch offices.
• HNW clients represent 87.5% of assets, or $17.32 billion.
• Serves more than 6,000 advisory clients with an average account size just over $1 million.
• The bulk of custodial assets sit with Fidelity ($14.5 billion) and Charles Schwab ($3.44 billion).
• Runs on Salesforce CRM with eMoney, Orion, and Ameriprise's FMAX platform.

3. CW Advisors, LLC | $15.22B AUM

CW Advisors is a fee-focused RIA, formerly known as Congress Wealth Management, that rebranded in 2023 and is now an Osaic company operating out of 46 offices nationwide.

Key Insights:

• AUM grew roughly 64% year over year to $15.22 billion, a growth rate far outpacing the typical $1B+ RIA, driven by both organic growth and acquisitions.
• HNW clients make up 85.2% of assets, or $12.97 billion.
• Advisory client count grew to 6,589, with an average account size of $640,871.
• Custodial assets are led by Fidelity ($7.64 billion) and Charles Schwab ($6.61 billion).
• Uses Black Diamond, CAIS, and Orion on its technology and alternatives platforms.

4. Loring, Wolcott & Coolidge Fiduciary Advisors, LLP | $12.84B AUM

Loring, Wolcott & Coolidge is a multi-family office established in 1937 with a long-standing emphasis on socially responsible investing, operating alongside an affiliated trust company.

Key Insights:

• AUM held essentially flat year over year at $12.84 billion.
• HNW clients account for 94.5% of assets, or $12.13 billion, across 3,331 advisory clients.
• Average account size is $3.9 million.
• Firm affiliations include Domini Impact Investments and the Loring Wolcott & Coolidge Trust Company.
• Runs on Factset and FIS for portfolio and reporting infrastructure.

5. Shepherd Kaplan Krochuk, LLC | $10.88B AUM

Shepherd Kaplan Krochuk, formerly GRT Capital Partners, is a Boston investment firm built around alternative investments including private equity, venture capital, hedge funds, and real estate, serving a concentrated roster of business owners and entrepreneurs.

Key Insights:

• AUM grew about 12% year over year to $10.88 billion.
• Retirement plan assets make up 67.9% of AUM ($7.39 billion), with HNW clients accounting for another 14.4% ($1.57 billion), a more institutionally weighted mix than most firms on this list.
• Serves 213 advisory clients with a 34-person team and an average account size of $7.75 million.
• Northern Trust is the firm's leading custodian, holding $5.07 billion in assets.
• Heavy allocation to alternative investments, including hedge funds, private equity, and real estate.
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6. Choate Investment Advisors | $10.05B AUM

Choate Investment Advisors, now operating as Choate Wealth, is the investment management arm of the Boston law firm Choate, Hall & Stewart, founded in 1996.

Key Insights:

• AUM increased approximately 13% year over year to $10.05 billion.
• HNW clients represent 93.3% of assets, or $9.37 billion, across 653 advisory clients.
• Average account size is $2.5 million, served by a team of 15 representatives.
• SEI is the firm's primary custodian, holding $9.01 billion.
• Maintains an affiliation with parent firm Choate, Hall & Stewart LLP.

7. Welch & Forbes LLC | $9.90B AUM

Welch & Forbes traces its roots to 1838, making it one of the oldest private wealth firms in the country. It operates today as an affiliate of AMG.

Key Insights:

• AUM grew about 8% year over year to $9.90 billion.
• HNW clients account for 80.9% of assets, or $8.01 billion, across 699 advisory clients.
• Average account size is $2.65 million, managed by a team of five representatives and 55 total employees.
• Reliance Trust Company is the primary custodian, holding $7.875 billion.
• Uses Salesforce and HubSpot for client relationship management.

8. Crestwood Advisors | $8.02B AUM

Crestwood Advisors is a Boston RIA founded in 2003 that joined Focus Financial Partners in 2017 and has been ranked among Barron's Top 100 RIAs.

Key Insights:

• AUM grew roughly 14% year over year to $8.02 billion.
• HNW clients represent 95% of assets, or $7.62 billion, across 1,129 advisory clients.
• Average account size is $1.2 million, supported by 40 representatives and 64 total employees across 10 offices.
• Custodial assets are led by Fidelity ($6.22 billion) and Charles Schwab ($1.31 billion).
• Uses Black Diamond and CAIS as part of its technology and alternatives platform.

9. The Bollard Group LLC | $6.72B AUM

The Bollard Group is a Boston multi-family office founded in 1995 that serves a deliberately small roster of ultra-high-net-worth families and entrepreneurs.

Key Insights:

• AUM was roughly flat year over year at $6.72 billion.
• HNW clients account for 79.2% of assets, or $5.32 billion, concentrated across just 26 advisory clients, reflecting the firm's boutique, high-touch model.
• Average account size is $13.7 million.
• Custodial assets are split across Fidelity ($2.15 billion), Morgan Stanley ($1.70 billion), and JP Morgan ($1.34 billion).
• Focuses on fixed income, hedge funds, private equity, and venture capital allocations.

10. Mayflower Advisors | $5.82B AUM

Mayflower Advisors is an independent RIA founded by Lawrence Glazer, Steven Dimitriou, and Lloyd Glazer, with a team of 33 professionals across seven offices.

Key Insights:

• AUM grew about 22% year over year to $5.82 billion.
• Retirement plan assets make up 75.6% of AUM ($4.40 billion), with HNW clients contributing another 19.7% ($1.15 billion).
• Serves 1,225 advisory clients with an average account size of $1.99 million.
• Custodial assets are led by Fidelity ($2.46 billion) and Pershing ($1.44 billion).
• Uses Black Diamond, CAIS, and Wealth.com on its technology platform.

11. 71 West Capital Partners | $5.51B AUM

71 West Capital Partners is a new RIA launched in November 2025 by former UBS Managing Directors Denis Cleary and Greg Devine, arriving with billions in assets from day one.

Key Insights:

• Registered with the SEC in November 2025 and reported $5.51 billion in AUM as of its first Form ADV filing.
• HNW clients represent 99.3% of assets, or $5.47 billion, across 173 advisory clients.
• Average account size is $31.8 million, served by a team of seven representatives.
• Pershing is the sole reported custodian, holding $5.46 billion.
• One of the largest single-year launches among Boston-headquartered RIAs in recent memory.

12. Reynders, McVeigh Capital Management, LLC | $4.23B AUM

Reynders, McVeigh Capital Management is a Boston wealth management firm founded in 2005 that specializes in sustainable and impact investing.

Key Insights:

• AUM grew about 8% year over year to $4.23 billion.
• HNW clients account for 68.2% of assets, or $2.88 billion, across 757 advisory clients.
• Average account size is $5.6 million, managed by a team of 21 representatives.
• Custodial assets are led by Fidelity ($2.47 billion) and Fifth Third Bank ($814 million).
• Focused on ESG and impact-driven investment themes across equity and fixed income.

13. Winthrop Wealth | $3.10B AUM

Winthrop Wealth, founded in 2017 by the Winthrop family and formerly known as Winthrop Advisory Group, Keel Financial Partners, and Unified Wealth Management, has grown into an 11-office practice.

Key Insights:

• AUM grew about 19% year over year to $3.10 billion.
• HNW clients account for 80.4% of assets, or $2.49 billion, across 2,513 advisory clients, one of the largest client rosters on this list.
• Average account size is $709,856, supported by 28 representatives and 40 total employees.
• LPL Financial is the primary custodian, holding $3.01 billion.
• Active on Instagram and YouTube as part of a broader consumer-facing marketing presence.

14. Woodstock Corporation | $1.29B AUM

Woodstock Corporation, founded in 1968, is one of Boston's oldest private wealth management firms, serving multi-generational families for nearly six decades.

Key Insights:

• AUM grew about 9% year over year to $1.29 billion.
• HNW clients account for 90.6% of assets, or $1.17 billion, across 238 advisory clients.
• Average account size is $2.24 million, managed by an eight-person team.
• Fidelity is the sole reported custodian, holding $1.17 billion.
• Maintains longstanding affiliations with Agawam Trust & Management and Woodstock Services Company.

15. Hoopoe Advisors | $0.61B AUM

Hoopoe Advisors, founded in 2016, combines wealth planning and investment management with a stated focus on social impact investing.

Key Insights:

• AUM grew about 12% year over year to $610 million.
• HNW clients account for 87.1% of assets, or $531 million, across 626 advisory clients, the largest client count relative to AUM on this list.
• Average account size is $974,410, served by an 11-person team across four offices.
• RBC is the firm's leading custodian, holding $541.7 million.
• Uses Salesforce CRM and the eMoney planning platform.

Closing Thoughts

Boston's wealth management market shows remarkable range, from a family office with roots in the 1930s to a firm that launched less than a year ago with more than $5 billion already under management. What ties this list together is not size or age but a shared focus on serving individuals, families, and similar private clients directly, which is a very different business than managing money on behalf of institutions or distributing investment products through other advisors.

 For a broader view of how these firms stack up against the largest independent RIAs nationally, see AdvizorPro's Top 100 Independent RIAs ranking. Readers comparing markets may also want AdvizorPro's Top RIAs in San Francisco ranking for another major wealth hub built on a very different mix of firms.

About AdvizorPro

AdvizorPro is the advisor intelligence platform built for asset managers, ETF issuers, wealthtechs, and distribution teams that need to identify, prioritize, and engage financial advisors. With verified data across 750,000+ RIAs, family offices, and broker-dealers, combined with AI-powered lead scoring, TrafficIQ visitor intelligence, native CRM integrations, and now direct connectivity to Claude and ChatGPT, AdvizorPro powers the go-to-market strategies of leading firms across the wealth management ecosystem.

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