Windrock Wealth Management logo

Windrock Wealth Management

Updated today

Client AUM

$363,227,815

Clients

83

Advisors

4

across 3 offices

About

WindRock serves high‑net‑worth individuals, families and family offices with discretionary wealth management, family office solutions and retirement‑plan fiduciary consulting. The firm manages roughly $363 million in client assets and typically works with families that have multi‑million dollar portfolios and wealth management clients with mid‑six‑figure account sizes.

The firm follows a macro‑driven asset allocation process across four broad categories—global equities and tactical allocators, global bonds, hard assets and unique private investments—combining third‑party research, outside managers and in‑house judgment. Client communication and reporting include quarterly reports and webcasts and WindRock also distributes periodic newsletters and research pieces to clients.

What distinguishes WindRock from many peers is its active role in private fund activity: the firm sponsors and advises affiliated private investment vehicles and the principal holds minority ownership or advisory interests in several of those entities, creating situations where clients may be offered affiliated private offerings. WindRock also offers performance‑based fee arrangements for qualified clients on select strategies and has recently implemented limited use of AI tools to support research and operational workflows.

Client services

Portfolio management Selection of other advisers Newsletters or periodicals

Expertise

Private / alternative investments Wealth management Retirement plans for business owners (SEP, solo 401k) Retirement income strategy

Occupation focus

Founder/Business Owner Executive

Want help finding the right advisor?

Answer a few questions to see advisors matched to you.

Fee options

Fixed

Flat fees for specific projects vary, examples include Basic Financial Plan: $5,000 to $10,000, Investment Analysis: $3,000 and up

Percentage

$0 - $500,000: 1.50% $500,001 - $3,000,000: 1.25% $3,000,001 - $8,000,000: 0.90% $8,000,001 - $18,000,000: 0.70% $18,000,001+: 0.25%

Project-based

Hourly rates range from $200 to $500 per hour depending on the professional; examples include $500/hour for senior personnel

Performance-based

Performance-based fees typically up to 2.0% annual advisory fee and/or up to 30% of gains for qualified clients meeting criteria

Other

Account minimum: $500,000 Minimum fee: Minimum quarterly fee of $1,875 for portfolios under $10 million; minimum quarterly fee of $12,500 for portfolios exceeding $10 million Fee-only: Fixed fees may be offered on a client-by-client basis, negotiated based on complexity and client needs, with minimum annual fees of $7,500 for Wealth Management and $50,000 for Family Office Solutions

Main office

See office

225 West Jefferson Avenue, Suite 2

Naperville IL 60540

Advisors at this office

2

Most active in

Arizona · Illinois · Michigan

Also doing business as

Cryptox Advisory · Windrock Wealth Management · Windrock Wealth Management 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

Brett R

CFA®

Naperville, IL

Windrock Wealth Management

Brett Rentmeester is a CFA® charterholder and president of Windrock Wealth Management in Naperville, IL, with 13 years of industry experience. He was previously employed by Altair Advisers, a Chicago-based investment advisor, until early 2013. Rentmeester is also a partial owner of Iridius Investment Advisors LLC, a private fund advisory firm focused on real estate, cross-border, and financial services investments. Windrock Wealth Management serves high-net-worth individuals, family offices, and retirement-plan sponsors by providing discretionary portfolio management, family office solutions, and fiduciary retirement-plan consulting. The firm emphasizes a macroeconomic, multi-year asset-allocation framework and offers clients access to private investment opportunities alongside traditional advisory services.

Private / alternative investments Wealth management Retirement plans for business owners (SEP, solo 401k) Retirement income strategy Founder/Business Owner Executive
user avatar

Brandy M

Series 66

Tucson, AZ

Windrock Wealth Management

Brandy Maben is a financial advisor at WindRock Wealth Management with six years of industry experience. She holds the Series 66 designation and has worked at firms including Levin Funding Group and KMS Financial. Outside of finance, she directs Arizona Swim Camp, a youth swim camp she has been involved with since 2015, and participates in nonprofit and professional organizations such as the MECP2 Duplication Foundation and the Southern Arizona Estate Planning Council. WindRock Wealth Management serves high-net-worth individuals, family offices, and retirement-plan sponsors by providing discretionary portfolio management, family office solutions, and fiduciary retirement-plan consulting. The firm employs a macroeconomic, multi-year asset-allocation approach and offers access to traditional and alternative investments, including private placement opportunities.

Private / alternative investments Wealth management Retirement plans for business owners (SEP, solo 401k) Retirement income strategy Founder/Business Owner Executive
user avatar

Austin K

Series 65

Ann Arbor, MI

Windrock Wealth Management

Austin Kent is a financial advisor at Windrock Wealth Management in Ann Arbor, MI, holding a Series 65 designation with two years of industry experience. Prior to joining Windrock, he worked at MariPau Wealth Management and has experience with Inveniam.io and several other firms. Windrock Wealth Management serves high-net-worth individuals, family offices, and retirement-plan sponsors by providing discretionary portfolio management, family office solutions, and fiduciary retirement-plan consulting. The firm employs a macroeconomic, multi-year asset-allocation approach across traditional and alternative investments and offers clients access to private placement opportunities alongside standard advisory services.

Private / alternative investments Wealth management Retirement plans for business owners (SEP, solo 401k) Retirement income strategy Founder/Business Owner Executive
user avatar

Christopher C

CFA®

Naperville, IL

Windrock Wealth Management

Christopher Casey is a CFA® charterholder with 10 years of industry experience. He has been with Windrock Wealth Management since 2013 and currently serves as an advisor at the firm in Naperville, IL. Windrock Wealth Management serves high-net-worth individuals, family offices, and retirement-plan sponsors, providing discretionary portfolio management, family office solutions, and fiduciary retirement-plan consulting. The firm uses a macroeconomic, multi-year asset-allocation approach across traditional and alternative investments and is notable for sponsoring private funds and offering those opportunities to clients alongside standard advisory services.

Private / alternative investments Wealth management Retirement plans for business owners (SEP, solo 401k) Retirement income strategy Founder/Business Owner Executive
View complete list of advisors at this firm
Warmer team member

Not sure where to start?

We'll help you think it through—whether you ultimately need an advisor or not. Warmer helps you compare advisors clearly, so you can choose with confidence.

Find your advisor

For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Advisors are independent and may not have reviewed or updated this information. Please review an advisor’s Form ADV and do your own diligence before deciding whether to work with them.

Advisor matching and introductions are provided by FinanceHQ LLC (“FHQ”), a wholly-owned subsidiary of Warmer and an SEC-registered investment advisor. We receive compensation from certain participating advisors for introductions or referrals. This creates a conflict of interest because we have an incentive to recommend advisors who compensate us, including those who pay us more. You pay no fee to use our matching service, and advisor fees are not increased because of a referral or introduction. We do not review the ongoing performance of advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.

By using our service, you agree to our Terms of Service and Advisory Agreement, and acknowledge our Privacy Policy. Please review FHQ’s ADV Part 2A and Form CRS. Logos provided by Logo.dev

© 2026 Warmer Holdings Inc. (“Warmer”)