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Callahan Advisors, LLC

Updated today

Client AUM

$1,297,940,673

Clients

431

Advisors

7

of 11 employees

About

Callahan Advisors, LLC is a registered investment adviser that provides discretionary portfolio management to individuals, high-net-worth clients, foundations, trusts, estates, and charitable organizations. The firm manages over $1.3 billion in client assets and typically prefers accounts of at least $1,000,000 while occasionally accepting smaller accounts.

The firm’s investment approach focuses on U.S.-listed equities supplemented by corporate and government fixed income, exchange-traded funds, and cash equivalents, with an emphasis on client risk tolerance, diversification, low portfolio turnover, and regular advisor communication. All accounts are managed on a discretionary basis and the firm uses Charles Schwab’s institutional custody and trading services for client assets.

Compared with many peers, Callahan’s ADV discloses the use of derivatives in separately managed accounts, a practice that is relatively uncommon among similar team firms. The brochure also notes the firm does not provide financial planning or tax/legal advice and documents operational arrangements such as standing letters of authorization and fee-deduction custody procedures in its compliance disclosures.

Client services

Portfolio management

Expertise

Wealth management Passive / index investing

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Fee options

Percentage

$0 - $500,000: 1.00% annually $500,000 - $1,500,000: 0.80% annually $1,500,000 - $2,500,000: 0.65% annually $2,500,000+: 0.50% annually

Other

Account minimum: $1,000,000

Main office

3555 Timmons Lane, Suite 600

Houston TX 77027

Advisors at this office

7

Most active in

Arkansas · California · Colorado · Florida · Georgia · Illinois · Louisiana · Mississippi · Oklahoma · Tennessee · Texas

Also doing business as

Callahan Advisors, LLC · Callahan, Leighton & Co., LLC

Disclosures

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

Business activities & affiliations

Advisors at this firm

user avatar

Hamendra O

Series 65

Houston, TX

Callahan Advisors, LLC

Hamendra Ojha is a financial advisor at Callahan Advisors, LLC in Houston, TX, holding a Series 65 credential with 15 years of industry experience. He has been with Callahan Advisors since 2010. Callahan Advisors, LLC provides discretionary investment management primarily to individuals, including high-net-worth clients, as well as charitable organizations, foundations, trusts, estates, and retirement accounts. The firm’s investment approach focuses on US-listed equities complemented by fixed income and ETFs, with portfolio decisions based on client risk tolerance and long-term objectives.

Wealth management Passive / index investing
user avatar

Nam B

Series 65

Houston, TX

Callahan Advisors, LLC

Nam Bui is a financial advisor at Callahan Advisors, LLC with a Series 65 credential and four years of industry experience. Prior to joining Callahan Advisors in 2022, he held roles at OPES One, Rosewater, MOD Pizza, Smoothie King, and the University of Houston. Outside of advising, he owns and operates businesses in reselling and e-commerce and works as a bartender at a local bar. Callahan Advisors, LLC provides discretionary investment management primarily to high-net-worth individuals and charitable organizations. The firm focuses on US-listed equities, corporate and government debt, ETFs, and money market funds, tailoring portfolios based on client risk tolerance and long-term goals.

Wealth management Passive / index investing
user avatar

Rachel G

CFP®, Series 65

Houston, TX

Callahan Advisors, LLC

Rachel Gummattira is a CFP® and holds a Series 65 license with 14 years of industry experience. She has been with Callahan Advisors, LLC since 2012 and is based in Houston, TX. Callahan Advisors, LLC is a registered investment adviser managing over $1.3 billion in client assets, serving individuals, high-net-worth clients, foundations, trusts, estates, and charitable organizations. The firm’s discretionary investment approach emphasizes U.S.-listed equities, fixed income, ETFs, and cash equivalents with attention to risk tolerance, diversification, and low portfolio turnover.

Wealth management Passive / index investing
user avatar

Thomas C

Series 65

Houston, TX

Callahan Advisors, LLC

Thomas Callahan is a Series 65-licensed financial advisor with 12 years of industry experience. He is affiliated with Callahan Advisors, LLC, where he has worked since 2012. Callahan Advisors, LLC provides discretionary investment management primarily to individuals, including high-net-worth clients, as well as charitable organizations, foundations, trusts, estates, and retirement accounts. The firm manages approximately $1.2 billion in assets across about 425 client accounts, focusing on U.S.-listed equities supplemented by fixed income and ETFs, with portfolio decisions guided by client risk tolerance and long-term objectives.

Wealth management Passive / index investing
user avatar

Donna M

Series 63, Series 65

Houston, TX

Callahan Advisors, LLC

Donna Medcalf is a financial advisor at Callahan Advisors, LLC with 19 years of industry experience. She holds Series 63 and Series 65 licenses and has worked previously at Granite Harbor Advisors, INC., D.H. Hill Securities, LLLP, and Asset Management Advisors. Callahan Advisors, LLC provides discretionary investment management primarily to individuals, including high-net-worth clients, as well as charitable organizations, foundations, trusts, estates, and retirement accounts. The firm emphasizes U.S.-listed equity securities alongside corporate and government debt, ETFs, and money market funds, tailoring portfolios based on client risk tolerance and long-term goals.

Wealth management Passive / index investing
user avatar

Thomas C

Houston, TX

Callahan Advisors, LLC

Thomas Callahan is the founder of Callahan Advisors, LLC in Houston, TX, and holds 27 years of industry experience. He has led Callahan Advisors since 1998. Callahan Advisors, LLC provides discretionary investment management primarily to individuals, including high-net-worth clients, as well as charitable organizations, foundations, trusts, estates, and retirement accounts. The firm emphasizes U.S.-listed equity securities supplemented by fixed income and ETFs, with portfolio decisions based on client risk tolerance and long-term objectives.

Wealth management Passive / index investing
user avatar

William M

Series 65

Houston, TX

Callahan Advisors, LLC

William Monroe Jr. is a financial advisor at Callahan Advisors, LLC with seven years of industry experience. He holds a Series 65 designation and previously worked at Monroe Capital Management LLC and Bayou City Capital, LLC. Callahan Advisors, LLC provides discretionary investment management primarily to individuals, including high-net-worth clients, as well as charitable organizations, foundations, trusts, estates, and retirement accounts. The firm emphasizes U.S.-listed equity securities complemented by corporate and government debt, ETFs, and money market funds, with portfolio decisions guided by client risk tolerance and long-term objectives.

Wealth management Passive / index investing
View complete list of advisors at this firm
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