West Branch Capital provides financial planning, portfolio management for individuals and small businesses, education planning, estate planning, insurance, and philanthropic planning. Financial planning was provided to 1–10 clients last fiscal year.
West Branch Capital reports 372 clients. They include 201 individual clients and 171 high-net-worth individuals. Of its assets, 98.5% ($680M across 1,252 accounts) are managed with discretion; $10.6M across 3 accounts are not. Of its clients, 1% are outside the U.S.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 54% | 12% |
| High-net-worth individuals | 46% | 86% |
| Pension and profit-sharing plans | Fewer than 5 | <1% |
| Charitable organizations | Fewer than 5 | <1% |
| Corporations and other businesses | Fewer than 5 | <1% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 201 | $83.7M | 12.1% | $417K |
| High-net-worth individuals | 171 | $594M | 86.0% | $3.47M |
| Pension and profit-sharing plans | Fewer than 5 | $5.08M | 0.7% | — |
| Charitable organizations | Fewer than 5 | $4.35M | 0.6% | — |
| Corporations and other businesses | Fewer than 5 | $3.4M | 0.5% | — |
| Total | 372 | $690M | 100% | — |
- Clients
- 201
- Regulatory AUM
- $83.7M
- AUM share
- 12.1%
- Avg. per client
- $417K
- Clients
- 171
- Regulatory AUM
- $594M
- AUM share
- 86.0%
- Avg. per client
- $3.47M
- Clients
- Fewer than 5
- Regulatory AUM
- $5.08M
- AUM share
- 0.7%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $4.35M
- AUM share
- 0.6%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $3.4M
- AUM share
- 0.5%
- Avg. per client
- —
Total
- Clients
- 372
- Regulatory AUM
- $690M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 1%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 1–10
West Branch Capital charges 0.25%–1.50% a year for its Portfolio Management. The fee is negotiable.
Fee details and sources
Ayaz Mahmud owns 75% or more of West Branch Capital. The leadership team of West Branch Capital includes Chief Compliance Officer Ayaz Mahmud. It has 9 employees, 3 of them in advisory roles.
Staff
- 9 employees
- 3 in advisory functions
- 3 state-registered reps
- Owns 75% or more of West Branch Capital LLC
Ayaz Mahmud
Control person · since December 2004
West Branch Capital’s regulatory assets grew 1.6× from $440M (March 2021) to $690M (February 2026); clients were 372 in both filings and employees fell from 10 to 9. In 2009, Legacy Financial Services joined it.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | StaffEmployees | Offices |
|---|---|---|---|---|
| Feb 2026February 2026 | $690M | 372 | 9 | 4 |
| Feb 2025February 2025 | $631M | 371 | 9 | 4 |
| Jun 2024June 2024 | $516M | 375 | 11 | 4 |
| May 2023May 2023 | $436M | 375 | 10 | 4 |
| Jul 2022July 2022 | $510M | 379 | 10 | 4 |
| Mar 2021March 2021 | $440M | 359 | 10 | 4 |
Firms that joined
20091 joined
- Legacy Financial ServicesNo filed AUM
Firms whose SEC withdrawal reports a sale to this firm, and deals reported in the press. Teams that moved without selling a registered firm may not appear.
Besides its headquarters, West Branch Capital has 3 offices, with 4 listed addresses across 2 states.
Massachusetts · 3 listed addresses
- 9 Research Drive, Suite 1, AmherstHQ
- 100 Independence Drive, Hyannis
- 99 Derby Street, Hingham
New York · 1 listed address
- 300 International Drive, Williamsville
Contact and registration details
- Legal name
- West Branch Capital LLC
- Headquarters
- 9 Research Drive, Suite 1, Amherst, MA 01002
- Website
- westbranchcapital.com
- Phone
- 83388805344132561225
- @west-branch-capital-llc
- SEC file
- 801-78332
- Founded
- 2004
- Structure
- Massachusetts LLC
- Fiscal year end
- December
West Branch Capital’s named custodians for separately managed accounts are Fidelity ($516M, 78%) and Charles Schwab ($150M, 22%). West Branch Capital does not have custody of client assets.
- FidelityNational Financial Services LLC · Boston, MA · $516M78%
- Charles SchwabCharles Schwab & Co., Inc. · Westlake, TX · $150M22%
At year end, West Branch Capital’s separately managed accounts were mostly in stocks (53%) and bonds (30%). Its reported 13F holdings for the quarter ended 30 June 2026 total $430M across 355 positions; the largest are Apple Inc. (10.0%), Nvidia Corporation (9.5%) and Alphabet Inc. (7.4%).
What the accounts hold
- Stocks53%
- Funds13%
- Bonds30%
- U.S. government and agency bonds28%
- State and local bonds1%
- Investment grade corporate bonds1%
- Cash5%
How many clients does West Branch Capital have?
West Branch Capital has 372 clients and manages $690 million for them, as of February 2026. They include 201 individual clients and 171 high-net-worth individuals.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 13 February 2026
What services does West Branch Capital offer?
West Branch Capital provides financial planning, portfolio management for individuals and small businesses, education planning, estate planning, insurance, and philanthropic planning.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
How much does West Branch Capital charge?
West Branch Capital charges 0.25%–1.50% a year for its Portfolio Management. The fee is negotiable.
Source: WEST BRANCH BROCHURE (FORM ADV2A), filed 13 February 2026
Which custodians does West Branch Capital use?
West Branch Capital’s separately managed account assets are held at National Financial Services LLC (Boston, MA), with $516M and Charles Schwab & Co., Inc. (Westlake, TX), with $150M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 13 February 2026
How many financial advisors does West Branch Capital have?
West Branch Capital has 3 investment adviser representatives registered with state securities authorities, out of 9 employees, and 3 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does West Branch Capital invest in?
At the end of its last fiscal year, West Branch Capital’s separately managed accounts held 53% exchange-traded equities, 28% U.S. government and agency bonds, 13% registered funds (mutual funds, ETFs, BDCs), 5% cash and equivalents, 1% state and local bonds and 1% investment grade corporate bonds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns West Branch Capital?
West Branch Capital’s direct owner is Ayaz Mahmud (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 13 February 2026
How does West Branch Capital get paid?
West Branch Capital is paid through a percentage of assets under management, fixed fees and performance-based fees. Its Form ADV lists no commissions among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact West Branch Capital?
West Branch Capital’s main office is at 9 Research Drive, Suite 1, Amherst, MA 01002. Its phone number is 83388805344132561225. Its website is westbranchcapital.com.