G

Grant Tani Barash & Altman, LLC

Updated today

Client assets under management

$2,249,600,867

Clients

217

79% high-net worth

Advisors

8

of 89 employees

Firm type

Team

4-10 advisors or $500M+ in AUM

Clients per advisor

27

Very Low

Average account size

$10,366,824

About

Grant Tani Barash & Altman (GTBA) serves high‑net‑worth and ultra‑high‑net‑worth individuals, families, trusts, estates, corporations and pension/profit‑sharing plans. The firm operates as a multi‑family office providing bundled business management services—bookkeeping, accounting, tax planning and preparation, bill pay and related administrative services—alongside investment advisory and consulting services.

GTBA typically acts as a liaison to third‑party investment managers, offering non‑discretionary recommendations, due diligence and portfolio monitoring, and will assist clients in developing or updating an Investment Policy Statement and asset allocation. The firm’s discretionary investment authority is narrowly focused on short‑term cash and cash‑equivalent instruments (e.g., U.S. Treasury securities, money market funds and similar products), while other investments are generally managed by selected third‑party managers at the client’s direction.

What distinguishes GTBA from many peers is the integration of in‑house accounting and tax services with advisory functions and its affiliations through Hightower to a trust company, broker‑dealer and other investment advisory and consulting entities (including a named pension consultant affiliate). Those affiliations enable a broader set of services and coordinated resources but also create potential referral and conflict‑of‑interest considerations that the firm discloses and addresses through policies and client disclosures; GTBA also typically charges a bundled business‑management fee rather than a standard percentage‑of‑AUM advisory fee and provides bill‑pay and limited power‑of‑attorney arrangements that can result in custodial implications subject to annual surprise examinations.

Client services

Portfolio management Selection of other advisers

Expertise

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing

Occupation focus

Founder/Business Owner Executive

Fee options

Other

Fee-only: Bundled fee for all business management services, generally negotiable, outlined in engagement agreement

Main office location

Grant Tani Barash & Altman, LLC

9100 Wilshire Blvd, Suite 1000 West

Beverly Hills CA 90212, United States

Number of offices

1

Most active in

California · New York

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

Quick links

Advisors at this firm

user avatar

Kim I

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Kim Ibrahim is a financial advisor at Grant Tani Barash & Altman, LLC with 14 years of industry experience. He holds a Series 65 designation and has been with the firm since 2004. Prior to that, he worked at Grant Tani Barash & Altman, Inc. beginning in 2000. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals and various institutional clients. The firm offers bundled business-management services alongside customized investment advice, acting as a multi-family office liaison with a focus on non-discretionary investment recommendations and short-term cash management.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Michael P

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Michael Provenzano is a financial advisor at Grant Tani Barash & Altman, LLC with a Series 65 designation and one year of industry experience. He has been with Grant Tani Barash & Altman since 2018 and previously worked at PricewaterhouseCoopers LLP from 2016 to 2018. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals, pension and profit-sharing plans, trusts, estates, private foundations, corporations, and partnerships. The firm offers bundled business-management services alongside investment recommendations and due diligence, focusing on customized asset allocation and multi-family office liaison roles.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Brent D

Series 63, Series 66

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Brent Donovan is a financial advisor at Grant Tani Barash & Altman, LLC with 24 years of industry experience. He holds Series 63 and Series 66 designations and has previously worked at Geneos Wealth Management, Inc. and Hightower Securities. Outside of his advisory role, he is president of MAD Donovan Inc. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals and various institutions. The firm offers bundled business-management services alongside customized asset allocation and acts as a multi-family office liaison, providing both investment recommendations and due diligence on third-party managers.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Warren G

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Warren Grant is a financial advisor at Grant Tani Barash & Altman, LLC, holding a Series 65 license with 15 years of industry experience. He has been with Grant Tani Barash & Altman in various capacities since 1992. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals, pension plans, trusts, estates, private foundations, corporations, and partnerships. The firm offers bundled business-management services alongside customized asset allocation and multi-family office liaison work, typically providing non-discretionary investment advice with limited discretionary authority for short-term cash management.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Howard A

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Howard Altman is a financial advisor at Grant Tani Barash & Altman, LLC with 15 years of industry experience. He holds a Series 65 designation and has been with the firm since 2004, following prior involvement with Grant Tani Barash & Altman, Inc. since 1992. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals and institutional clients. The firm offers bundled business management services alongside customized investment advice, acting as a multi-family office liaison and providing non-discretionary investment recommendations with a focus on asset allocation and short-term cash management.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Corey B

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Corey Barash is a Series 65-licensed financial advisor with 15 years of industry experience. He has been with Grant Tani Barash & Altman, LLC since 2004 and has been associated with Grant Tani Barash & Altman, Inc. since 1992. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm that serves ultra-high-net-worth individuals, pension and profit-sharing plans, trusts, estates, private foundations, corporations, and partnerships. The firm offers bundled business-management services alongside customized asset allocation and acts as a multi-family office liaison, providing integrated custody, trust, and advisory resources through its affiliations within the Hightower group.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Estelle T

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Estelle Thrasher is a Series 65-credentialed advisor with Grant Tani Barash & Altman, LLC in Beverly Hills, CA. She has been with the firm since 2011 and has 15 years of industry experience. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals and a variety of institutional clients. The firm offers bundled business-management services alongside customized investment advice, acting as a multi-family office liaison with a focus on non-discretionary investment recommendations and short-term cash management.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
user avatar

Zoe L

Series 65

Beverly Hills, CA

Grant Tani Barash & Altman, LLC

Zoe Lawrence is a financial advisor at Grant Tani Barash & Altman, LLC with 14 years of industry experience. She holds a Series 65 designation and has been with the firm since 2004. Grant Tani Barash & Altman, LLC is an SEC-registered business management and investment advisory firm serving ultra-high-net-worth individuals and various institutional clients. The firm offers bundled business-management services alongside customized asset allocation and multi-family office liaison work, providing primarily non-discretionary investment advice with limited discretionary authority for short-term cash management.

Business Financial Management Retirement plans for business owners (SEP, solo 401k) Real estate investing Founder/Business Owner Executive
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