Signature Estate & Investment Advisors

What Signature Estate & Investment Advisors does

Signature Estate & Investment Advisors (SEIA) is a privately held, SEC-registered investment advisory firm headquartered in Century City, Los Angeles, founded in 1997 and serving high-net-worth individuals, families, and business owners across the United States. The firm delivers comprehensive wealth management across nine integrated service lines: investment management, comprehensive financial planning, investment solutions, risk management, tax planning, trust and estate planning, business advisory, wealth counseling, and private client services. SEIA distributes these services through a coast-to-coast network of 28 offices with credentialed financial advisors (holding CFA, CFP, AIF, CMT, and other designations), supported by affiliated entities — Signature Estate Securities (a FINRA/SIPC member broker-dealer) and Signature Investment Advisors — that enable combined investment advisory and securities distribution under a unified brand.

The firm manages approximately $32 billion in assets under management as of June 2026, a level achieved through a combination of organic growth and acquisition, including the 2024 acquisition of Cedar Brook Group ($2B AUM, Midwest entry) and the 2025 acquisition of Select Money Management ($1.6B AUM). Revenue is generated primarily through recurring, asset-based investment advisory fees, with fee structures tailored to client assets and disclosed in Form ADV Part 2A rather than published publicly. SEIA's underlying technology stack includes a client portal running on the Tamarac platform (seiallc.portal.tamaracinc.com) and, since June 2026, an AI-enabled advisor platform that embeds generative and process-automation AI into planning, operational, and client-service workflows to automate administrative work and accelerate advisor analysis. CEO Brian Holmes, one of four founding partners and a Barron's Hall of Fame inductee, has led the firm continuously for over 25 years.

SEIA positions itself around integrated, human-judgment-led advisory for complex wealth situations rather than algorithmic or self-directed solutions, with brand credibility anchored by Barron's Top 100 RIA (#19 in 2025), Financial Times 400, Forbes Best-in-State Wealth Advisors, and InvestmentNews 5-Star awards. The stated strategic objective is to reach $100 billion in assets under advisement within five years, executed through continued advisor recruitment, geographic buildout, and disciplined acquisitions supported by a dedicated in-house M&A team.

Name

Signature Estate & Investment Advisors

Legal name

Signature Estate & Investment Advisors, LLC

Website

https://seia.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Wealth Management

NAICS

Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282)

akta.pro primary industry

Investment Management Advisory (RIA) (FSAEAAAB)

akta.pro secondary industries

Registered Investment Advisor (RIA) Wealth Management (FSAEABAA), Private Client/High-Net-Worth Advisory (FSAEAAAN)

Keywords

• Wealth management services
• Investment advisory
• Financial planning
• Estate planning services
• High net worth advisory

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices31 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Investment Advisory Fees: SEIA generates revenue through investment advisory fees, typically based on assets under management (AUM), providing comprehensive wealth management services including investment management, financial planning, tax coordination, and estate strategy services to high-net-worth clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

SEIA is a privately held SEC-registered investment advisory firm that delivers comprehensive wealth management services to high-net-worth individuals, families, and business owners. Core services include investment management, financial planning, tax planning, trust and estate planning, risk management, business advisory, and wealth counseling, delivered through a network of financial advisors across 28 U.S. offices and supported by an AI-enabled advisor platform. The firm manages approximately $32 billion in assets under management and pursues national expansion through acquisitions of other RIAs.

Product overview

SEIA offers a comprehensive wealth management platform combining investment management and financial planning with holistic advisory services. The core product is the AI-enabled advisor platform that integrates financial planning, tax coordination, and estate strategy services. Supporting services include investment management, risk management, business advisory, and wealth counseling, all delivered through a network of advisors across 28 offices nationwide. The firm also provides a client portal for account access and operates Signature Fund for Giving as its philanthropic initiative.

Differentiator

Problem solved

Functional benefit

Products and services

• Investment Management Core portfolio management services including portfolio construction, asset allocation, and ongoing monitoring for high-net-worth individuals, families, and business owners.
• Comprehensive Financial Planning Comprehensive financial planning services for high-net-worth individuals and families, integrating goals-based planning with investment, tax, and estate considerations.
• Investment Solutions Investment solutions offerings supporting diversified portfolio strategies for client portfolios across multiple asset classes.
• Risk Management Risk assessment and management services for investment portfolios and broader wealth planning for high-net-worth clients.
• Tax Planning Tax strategy and planning coordination integrated with overall wealth management and investment management services.
• Trust & Estate Planning Estate strategy and trust planning services for wealth transfer and preservation across generations.
• Business Advisory Advisory services for business owners including exit planning, succession planning, and business strategy integrated with personal wealth management.
• Wealth Counseling Holistic wealth counseling services addressing the personal, family, and lifestyle dimensions of comprehensive financial wellness.
• Private Client Services Premium wealth management services for high-net-worth private clients delivered through dedicated advisors.
• AI-Enabled Advisor Platform AI-enabled advisor platform integrating planning, operational and client-service workflows to automate administrative tasks, accelerate analysis, and help advisors manage larger, more complex client relationships.
• SEIA Client Portal (Tamarac) Secure online client portal powered by the Tamarac platform enabling SEIA clients to access their accounts online.

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature1 record

Partnerships

Four partnerships are on record, tiered major and core.

• Select Money ManagementmajorStrategic or Co-development Partner · 9 September 2025SEIA acquired Select Money Management (SMM), a wealth management firm based in California with about $1.6 billion in assets, as part of its national expansion strategy. This was SEIA's second-largest acquisition, expanding presence to 28 offices nationwide.
• Cedar Brook GroupmajorStrategic or Co-development Partner · 30 April 2024SEIA acquired Cedar Brook Group, a $2 billion RIA based in Cleveland, Ohio, in June 2024. This was SEIA's largest transaction and first major expansion into the Midwest, focusing on Ohio, Pennsylvania, and Michigan markets.
• Signature Estate SecuritiescoreOthersSecurities offered through Signature Estate Securities, LLC, member FINRA/SIPC. Related entity for securities distribution services.
• Signature Investment AdvisorscoreOthersAffiliated investment advisory entity under the SEIA umbrella.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Creative Planning: One of the largest independent RIAs in the US with over $200B AUM, offering comprehensive wealth management to HNW clients. Highly comparable to SEIA in service breadth (investment management, financial planning, estate, tax) but materially larger in scale.
• Mariner Wealth Advisors: Large national RIA serving HNW and ultra-HNW clients through an integrated wealth management platform. Highly comparable to SEIA's HNW focus, multi-disciplinary service model, and acquisition-driven growth strategy.
• Focus Financial Partners: Leading RIA consolidator with hundreds of partner firms and ~$350B+ AUM. Comparable to SEIA as both operate in the HNW wealth management space, though Focus is a partnership model at vastly larger scale.
• Carson Group: National wealth management firm serving advisors and HNW clients with comprehensive financial planning and investment services. Comparable to SEIA in HNW wealth management focus and acquisition-driven scale building.
• Cetera Financial Group: Large independent advisor services platform serving financial advisors and their HNW clients. Comparable to SEIA in wealth management focus and advisor-centric distribution model, but with much larger scale and broader product menu.
• Edelman Financial Engines: Large national RIA providing wealth management and financial planning to HNW households. Comparable to SEIA in integrated wealth management service model and HNW client focus, but with significantly larger AUM scale.
• Kestra Financial: Independent wealth management platform supporting financial advisors serving HNW clients. Comparable to SEIA in HNW wealth management focus and advisor-led distribution model, with broader product and service breadth.

Direct peers

• CommonWealth (formerly BNY Mellon's Albridge/wealth unit): Independent RIA and wealth management firm serving HNW clients with comprehensive financial planning and investment advisory services. Comparable to SEIA in size, HNW focus, and multi-disciplinary service offering.
• Sanctuary Wealth: Independent wealth management platform serving high-net-worth clients through partner firms and a national advisor network. Comparable to SEIA as a mid-sized, growing RIA with HNW focus and acquisition-driven expansion.
• Monarch Wealth Advisors: Mid-sized independent RIA offering comprehensive wealth management to HNW clients. Comparable to SEIA in service model, HNW client focus, and scale, with similar acquisition-led growth trajectory.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles19 records

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Signature Estate & Investment Advisors