Hub International IPO preparations moved from boardroom to regulator on June 26, 2026, when Hub International Holdings, Inc. confidentially submitted a draft Form S-1 to the SEC for a proposed initial public offering of common stock. The filing tests whether the long-stalled PE-backed broker IPO window has finally cracked open, putting a $29 billion enterprise valuation — the highest ever recorded for a private insurance broker — in front of public market investors for the first time.
A Confidential S-1 With No Price, No Count, No Timeline
Hub’s June 26 press release confirmed the confidential filing but offered little else by way of deal specifics: no timing, share count, or price range for the offering had been determined as of the announcement. That is by design. Confidential filings under the JOBS Act allow issuers to test SEC comment rounds without exposing financials to competitors or triggering a formal IPO clock. Hub can withdraw, delay, or reprice without public consequence — a material advantage when market windows remain unpredictable. Proceeds from the offering, if it proceeds, are expected to be used for general corporate purposes, which may include the repayment of indebtedness, the company said — language that signals deleveraging as the primary use of funds rather than growth capex.
$29bn Price Tag: What the Multiple Implies Against Listed Peers
The valuation anchor was set more than a year before the filing. A $1.6 billion minority equity round in May 2025 — led by T. Rowe Price Investment Management, Alpha Wave Global, and Temasek — crystallised the $29 billion enterprise valuation figure, giving institutional investors a benchmark from which to price a public float. Against Hub’s 2024 EBITDA of approximately $1.8 billion, that implies a private market multiple of roughly 16x EV/EBITDA. Public peers Marsh, Aon, and Arthur J. Gallagher currently trade at EV/EBITDA multiples of approximately 12.9x, 14.2x, and 14.1x respectively, suggesting Hub is asking for a premium to every listed comp in the sector. Whether public investors will pay a growth premium for a heavily-leveraged roll-up without a decade of audited public-company disclosure is the central IPO risk. Hub’s sponsor group and the pre-IPO investors clearly believe the growth trajectory justifies the spread; equity market participants will decide at book-build.
Roll-Up Revenue Engine and the Leverage Problem
Hub’s May 2025 milestone announcement on PR Newswire highlighted a revenue trajectory that tells the acquisition-led growth story in plain numbers: annual revenue expanded from $1.1 billion in 2013 to $4.8 billion in 2024, a fourfold increase over eleven years. By 2025 the pace had not slowed — gross revenue reached $5.28 billion, up 9.8% year-over-year, with brokerage revenue rising 10.1% to $4.75 billion. S&P Global Ratings, which upgraded Hub’s long-term issuer credit rating from B to B+ on May 21, 2025, projects the brokerage will cross $5.5 billion in revenue in 2025 and $6.0 billion in 2026, with EBITDA margins holding at 34%–35% and operating cash flow reaching $760–780 million in 2026. The catch is the debt load: leverage stood at approximately 5.5x EBITDA after the 2025 equity raise, with management targeting a post-IPO range of 2.5x to 3.5x. Closing that 200–300 basis-point gap entirely via IPO proceeds would require a very large primary component — another reason the deal structure remains undisclosed. The deleveraging imperative also frames the use-of-proceeds language: debt repayment is not an afterthought, it is the transaction’s financial rationale. Readers following similar dynamics elsewhere in the segment will recognise the pattern: S&P’s negative outlook cut on Acrisure last year showed how quickly the rating agencies move when roll-up integration stalls and leverage remains elevated.
Hellman & Friedman’s 13-Year Hold and the Sponsor Exit Math
Hellman & Friedman’s own release on the 2025 round noted the firm acquired Hub from Apax Partners and Morgan Stanley in 2013 for $4.4 billion. That valuation has risen to $29 billion in 2025, a roughly 6.6x increase over twelve years, making the Hub position one of the most valuable single assets in PE history by absolute dollar appreciation. Hellman & Friedman retains a controlling interest; Leonard Green & Partners, which joined in 2023 at a $23 billion valuation, and Altas Partners, which joined in 2018 at a $10 billion valuation, remain as significant minority shareholders with board representation. With three PE firms holding equity and the company having grown to approximately 21,000 employees across 570 offices in North America, ranked the fifth largest broker globally, an IPO is the only realistic liquidity mechanism at this scale — a trade sale to a strategic buyer at $29 billion would attract antitrust scrutiny in virtually every major North American jurisdiction. The workforce contraction dynamics shaping the wider industry add a further dimension: Acrisure’s AI-driven workforce reduction illustrates how PE-backed brokers are simultaneously consolidating headcount while arguing for premium valuations — a tension that public market analysts will interrogate in the Hub prospectus. CEO Marc Cohen signalled institutional readiness for the moment: he described the IPO as “an option we want to have on the table” and cited Sarbanes-Oxley compliance workstreams already underway, with operational readiness expected by late 2026 or early 2027. The confidential S-1 puts that readiness on record. Those watching the broader broker M&A and IPO pipeline, including the Willis Merger Protect product designed to hedge antitrust review costs in insurance M&A, will note that Hub’s path to public markets still carries meaningful regulatory, market-timing, and leverage execution risk.
Mini-FAQ
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Sources
- Hub International Holdings — Confidential S-1 IPO Filing Announcement (June 2026)
- Hub International Holdings — $29bn Valuation and $1.6bn Minority Investment Press Release (May 2025)
- PR Newswire — Hub International $29bn Valuation Milestone (May 2025)
- Hellman & Friedman — Hub International Minority Investment Announcement (May 2025)
- Investing.com / S&P Global Ratings — Hub International Credit Rating Upgrade to B+ (May 2025)
- ION Analytics / Mergermarket — Hub International CEO Interview on IPO Preparations (2025)
- Multiples.vc — Insurance Broker EV/EBITDA Valuation Multiples (June 2026)
