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Dinan & Company
Trusted M&A advisors to the middle market, for over 35 years, business owners and investors have relied on Dinan to turn M&A opportunities into results.
Dinan & Company
Trusted M&A advisors to the middle market, for over 35 years, business owners and investors have relied on Dinan to turn M&A opportunities into results.
General information
Firm type
Private Equity
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Phoenix
Corporate office
Phoenix, AZ, United States
Principals
Rob Ullman
Managing Director
Will Downing
Managing Director
Tom O'Sullivan
Managing Director
Tom Gerlacher
Managing Director
Alex Aldworth
Managing Director
Brandon Womack
Managing Director
Sector focus
Frequently asked questions
Who runs investment decisions at Dinan & Company?
Dinan & Company is led by a team of managing directors who average over 27 years of industry experience and 18 years with the firm. Named senior advisors include Rob Ullman, Will Downing, Tom O'Sullivan, Tom Gerlacher, Alex Aldworth, and Brandon Womack (per firm website). Each managing director is involved in every engagement from initial meeting to close.
How does Dinan & Company source proprietary deal flow?
The firm has built a proprietary database of over 570,000 of the largest private companies in the US, cultivated over 35 years through direct relationships with business owners. Dinan layers advanced AI technology onto this dataset to identify off-market acquisition opportunities and exclusive market insights (per firm website).
Is Dinan & Company structured as a single family office or does it operate more like an investment bank?
Dinan & Company is structured as a middle-market M&A advisory firm and investment bank, not a family office. It provides sell-side and buy-side M&A advisory, as well as private capital markets services, generating revenue through transaction advisory rather than managing a committed capital base.
Does Dinan & Company participate in fund commitments or only direct deals?
Dinan & Company does not appear to manage committed funds or participate as a principal investor with its own balance sheet. The firm acts exclusively as an advisor to business owners and investors, guiding sell-side processes, buy-side acquisition searches, and capital-raising engagements.
What investment stages does Dinan & Company typically target?
Dinan focuses exclusively on the middle market across all stages of the corporate lifecycle—growth, buyouts, and add-on acquisitions. The firm's buy-side M&A group runs a structured four-phase acquisition search program for clients seeking new platforms or add-ons (per firm website).
Which sectors does Dinan & Company explicitly avoid?
Dinan does not publicly list excluded sectors. The firm's industry coverage includes nine groups: building products, business services, consumer, food & beverage, healthcare, industrials, technology, transportation & logistics, and subcontractors. Sectors without a dedicated practice group would likely receive less focus.
What is Dinan & Company's known posture on co-investments alongside external GPs?
Dinan does not co-invest as a principal; it advises both corporate and private equity buyers in acquisitions. The firm's testimonials frequently reference private equity firms as acquirers, suggesting Dinan's role is exclusively advisory rather than as a co-investment partner (per firm website).
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