Who can review Ziegler?

Any founder who hired Ziegler as their sell-side advisor and ran an M&A process with them, regardless of whether the deal ultimately closed. How a banker behaves when a deal does not close is just as important as when it does, and both outcomes are welcome.

Has Ziegler been reviewed by founders?

Ziegler appears in the BankerNotes directory. Reviews from verified founders who hired the firm unlock publicly once five founders have submitted ratings. Until that threshold is reached, reviews are pending and not displayed.

Where is Ziegler headquartered?

Ziegler is headquartered in Chicago, IL. The firm was founded in 1902.

What kinds of deals does Ziegler work on?

Ziegler focuses on Healthcare, Senior Living. Typical transaction size falls in the $25M-$500M range.

Who are the key dealmakers at Ziegler?

Senior dealmakers include Tim O'Connor (President, CEO). Founders running a process should expect to interact most with the named partner or managing director assigned to the deal.

How does BankerNotes verify reviews of Ziegler?

Every review on BankerNotes is submitted by a founder who confirms they hired the firm as their sell-side advisor. We verify the reviewer privately using work email, LinkedIn, and approximate engagement timing. The verified identity is never published. Only the rating, written review, and a generic sector label appear on the public page.

Industry specialist

Ziegler Reviews

Chicago, IL · Founded 1902

Firm at a glance

Type: Industry specialist
HQ: Chicago, IL
Founded: 1902
Deal size: $25M-$500M
Focus: Healthcare, Senior Living
Website: ziegler.com

Senior dealmakers

Tim O'Connor
President, CEO

Ziegler is a industry specialist headquartered in Chicago, IL and founded in 1902. The firm focuses on Healthcare, Senior Living and typically advises on transactions in the $25M-$500M range. Key dealmakers include Tim O'Connor (President, CEO). Read founder-verified reviews of Ziegler below, from founders who hired the firm as their sell-side advisor whether the deal closed or not.

What to know about Ziegler

Ziegler has built its franchise in Healthcare, Senior Living, where founders running a sale process often turn to firms with deep sector pattern recognition. The senior bench, anchored by Tim O'Connor, sets the tone for how engagements run from the first call through whatever outcome the process produces. Founders evaluating Ziegler typically compare it against other industry specialist houses with similar sector emphasis.

Deal sweet spot at Ziegler sits in the $25M-$500M band. That target range shapes everything: which buyers get the call, how the process is paced, and how the firm allocates senior banker attention. Founders working with Ziegler should expect a process tuned to that band; founders far below or above it sometimes find a better fit elsewhere.

Geography matters more than founders expect. Ziegler operates out of Chicago, IL, and its strongest buyer-side relationships tend to cluster around that orbit. For sellers running a global process, that can be either an advantage (concentrated relationships) or a constraint (thinner reach in other regions). Founders should ask directly: which buyers have you placed with in the last 24 months, and where are they.

Rating

Rating unlocks at 5 reviews

Submit a review of Ziegler Your name, email, and company are required for verification but are never shown publicly.

Reviews

Reviews unlock once 5 verified founders have rated this firm. Be the first to break the silence.

Verified Founder, Industrial Pending

professionalism10/10

responsiveness4/10

delivery3/10

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2025-12Locked

Verified Founder, B2B Pending

professionalism8/10

responsiveness1/10

delivery7/10

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2026-02Locked

Frequently asked questions

Who can review Ziegler?: Any founder who hired Ziegler as their sell-side advisor and ran an M&A process with them, regardless of whether the deal ultimately closed. How a banker behaves when a deal does not close is just as important as when it does, and both outcomes are welcome.
Has Ziegler been reviewed by founders?: Ziegler appears in the BankerNotes directory. Reviews from verified founders who hired the firm unlock publicly once five founders have submitted ratings. Until that threshold is reached, reviews are pending and not displayed.
Where is Ziegler headquartered?: Ziegler is headquartered in Chicago, IL. The firm was founded in 1902.
What kinds of deals does Ziegler work on?: Ziegler focuses on Healthcare, Senior Living. Typical transaction size falls in the $25M-$500M range.
Who are the key dealmakers at Ziegler?: Senior dealmakers include Tim O'Connor (President, CEO). Founders running a process should expect to interact most with the named partner or managing director assigned to the deal.
How does BankerNotes verify reviews of Ziegler?: Every review on BankerNotes is submitted by a founder who confirms they hired the firm as their sell-side advisor. We verify the reviewer privately using work email, LinkedIn, and approximate engagement timing. The verified identity is never published. Only the rating, written review, and a generic sector label appear on the public page.

Other Healthcare M&A advisors founders compare with Ziegler

More context for Ziegler

Sector

Healthcareboutique M&A advisors

Location

Chicagoboutique M&A advisors

Deal size

M&A advisors for $100M to $250M businesses

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Last updated: December 23, 2025

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