Epsilon Financial Group provides financial planning, portfolio management for individuals and small businesses, education planning, estate planning, insurance, and tax planning. Financial planning was provided to 51–100 clients last fiscal year.
Epsilon Financial Group reports 434 clients. They include 264 individual clients, 164 high-net-worth individuals, and 4 corporations and other businesses. Of its assets, 97.9% ($613M across 418 accounts) are managed with discretion; $13.3M across 16 accounts are not.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 61% | 14% |
| High-net-worth individuals | 38% | 82% |
| Pension and profit-sharing plans | <1% | <1% |
| Corporations and other businesses | <1% | 3% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 264 | $88.3M | 14.1% | $334K |
| High-net-worth individuals | 164 | $515M | 82.2% | $3.14M |
| Pension and profit-sharing plans | 2 | $2.7M | 0.4% | $1.35M |
| Corporations and other businesses | 4 | $20.5M | 3.3% | $5.12M |
| Total | 434 | $626M | 100% | $1.44M |
- Clients
- 264
- Regulatory AUM
- $88.3M
- AUM share
- 14.1%
- Avg. per client
- $334K
- Clients
- 164
- Regulatory AUM
- $515M
- AUM share
- 82.2%
- Avg. per client
- $3.14M
- Clients
- 2
- Regulatory AUM
- $2.7M
- AUM share
- 0.4%
- Avg. per client
- $1.35M
- Clients
- 4
- Regulatory AUM
- $20.5M
- AUM share
- 3.3%
- Avg. per client
- $5.12M
Total
- Clients
- 434
- Regulatory AUM
- $626M
- AUM share
- 100%
- Avg. per client
- $1.44M
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 51–100
Epsilon Financial Group is paid through a percentage of assets under management, hourly charges and fixed fees (other than subscription fees). The reviewed brochures do not disclose an asset-based fee rate. Read the SEC-filed brochure. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Financial Planning and Project Work
- Project work is billed at an hourly rate of $300 or a fixed project fee; a typical complete financial plan ranges from $1,000 to $10,000.
Mark Sievers owns 50% to 75% of Epsilon Financial Group. The leadership team of Epsilon Financial Group includes President Mark Sievers. It has 8 employees, 5 of them in advisory roles.
Leadership
- Mark SieversPresident, Chief Compliance Officer
- Leo MartinezSecretary
- Peter MatteiTreasurer
- Dennis ParkAssistant Secretary
- Michael HathawayAssistant CFO
Investment adviser representatives
5 representatives listed in the SEC register as of 9 October 2026.
Staff
- 8 employees
- 5 in advisory functions
- 5 state-registered reps
- Owns 50% to 75% of Epsilon Financial Group, Inc.
Mark Sievers
Control person · since August 2005
- Owns 5% to 10% of Epsilon Financial Group, Inc.
Dennis Park
Control person · since January 2023
- Owns 5% to 10% of Epsilon Financial Group, Inc.
Leo Martinez
Control person · since January 2023
- Owns 5% to 10% of Epsilon Financial Group, Inc.
Peter Mattei
Control person · since January 2023
- Owns 5% to 10% of Epsilon Financial Group, Inc.
Michael Hathaway
Control person · since July 2021
Epsilon Financial Group’s regulatory assets grew 1.5× from $415M (February 2021) to $626M (June 2026); clients fell from 512 to 434 and employees rose from 7 to 8.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| June 2026 | $626M | 434 | 8 | 3 |
| March 2025 | $554M | 495 | 8 | 3 |
| March 2024 | $559M | 495 | 8 | 3 |
| March 2023 | $466M | 459 | 8 | 3 |
| March 2022 | $468M | 518 | 8 | 3 |
| February 2021 | $415M | 512 | 7 | 3 |
Besides its headquarters, Epsilon Financial Group has 2 offices (1 private residence, listed without an address), with 2 listed addresses in California.
California · 2 listed addresses
- 2801 Waterman BLVD., Suite 250, FairfieldHQ
- 1001 2nd Street, Napa
Contact and registration details
- Legal name
- Epsilon Financial Group, Inc.
- Headquarters
- 2801 Waterman BLVD., Suite 250, Fairfield, CA 94534
- Website
- epsilonfg.com
- Phone
- 707-428-5500
- @epsilon-financial-group
- SEC file
- 801-62454
- Structure
- California corporation
- Fiscal year end
- December
Epsilon Financial Group uses Charles Schwab ($621M) as custodian for its separately managed accounts. Epsilon Financial Group does not have custody of client assets.
- Charles SchwabCharles Schwab & Co., Inc. · Westlake, TX · $621M100%
At year end, Epsilon Financial Group’s separately managed accounts were mostly in funds (55%) and stocks (42%).
What the accounts hold
- Stocks42%
- Funds55%
- Bonds6%
- Cash3%
How many clients does Epsilon Financial Group have?
Epsilon Financial Group has 434 clients and manages $626 million for them, as of June 2026. They include 264 individual clients, 164 high-net-worth individuals, and 4 corporations and other businesses.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 29 June 2026
What services does Epsilon Financial Group offer?
Epsilon Financial Group provides financial planning, portfolio management for individuals and small businesses, education planning, estate planning, insurance, and tax planning.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
Which custodians does Epsilon Financial Group use?
Epsilon Financial Group’s separately managed account assets are held at Charles Schwab & Co., Inc. (Westlake, TX), with $621M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 29 June 2026
How many financial advisors does Epsilon Financial Group have?
Epsilon Financial Group has 5 investment adviser representatives registered with state securities authorities, out of 8 employees, and 5 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 Epsilon Financial Group invest in?
At the end of its last fiscal year, Epsilon Financial Group’s separately managed accounts held 55% registered funds (mutual funds, ETFs, BDCs), 42% exchange-traded equities, 6% U.S. government and agency bonds and 3% cash and equivalents.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Epsilon Financial Group?
Epsilon Financial Group’s direct owners are Mark Sievers (50% to 75%), Dennis Park (5% to 10%), Leo Martinez (5% to 10%), Peter Mattei (5% to 10%) and Michael Hathaway (5% to 10%).
Source: Form ADV Part 1A, Schedules A and B, filed 29 June 2026
How does Epsilon Financial Group get paid?
Epsilon Financial Group is paid through a percentage of assets under management, hourly charges and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
Is Epsilon Financial Group registered with the SEC?
Yes, Epsilon Financial Group has been registered with the SEC as an investment adviser since 24 October 2003. Its CRD number is 111990 and its SEC file number is 801-62454.
Source: Form ADV Part 1A, Item 1, filed 29 June 2026; IAPD firm record
How do I contact Epsilon Financial Group?
Epsilon Financial Group’s main office is at 2801 Waterman BLVD., Suite 250, Fairfield, CA 94534. Its phone number is 707-428-5500. Its website is epsilonfg.com.