ICR Runs IPO PR for One in Four U.S. Listings

Related: PR Firms Directory · Industry Leaders · Crisis Communications

Updated: June 28, 2026.

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ICR is one of the largest independent strategic communications and advisory firms in North America, specializing in financial communications, investor relations, IPO advisory, M&A, and crisis. Founded in 1998 in Westport, Connecticut, by Tom Ryan and Chad Jacobs (former sell-side analysts) along with attorney John Flanagan. The firm operates from offices in New York, Connecticut, Boston, San Jose, London, and Beijing with more than 400 team members. Anton Nicholas succeeded co-founder Tom Ryan as CEO on January 6, 2026.

Founded: 1998 by Tom Ryan, Chad Jacobs, and John Flanagan
Headquarters: Norwalk, Connecticut (with major NYC office)
CEO: Anton Nicholas (since January 6, 2026, succeeding co-founder Tom Ryan)
Founder: Tom Ryan (Co-Founder; CEO 1998–2026)
Ownership: Independent
Team: 400+ members
Offices: New York, Norwalk (CT), Boston, San Jose, London, Beijing
O'Dwyer's ranking: #7 (2025) with $156.6M fee income
Website: icrinc.com

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Overview

ICR operates at the intersection of strategic communications and capital markets. The firm's foundational differentiation is its integrated-team model: capital-markets veterans paired with senior communications professionals on every client engagement.

ICR is consistently ranked among the top M&A PR advisors globally. The firm was ranked #3 M&A PR Advisor by The Deal with Intelligence 2025 League Tables and ranked among the top four M&A PR advisors by Mergermarket. Since 2019, ICR has advised on nearly a quarter of all U.S. IPOs over $100 million.

History and Ownership

ICR was founded in 1998 in Westport, Connecticut, by Tom Ryan and Chad Jacobs — both former sell-side equity analysts — along with attorney John Flanagan.

The firm scaled across the 2000s and 2010s through sector-focused practice expansion, the acquisition of Westwicke Partners in 2018, and the launch of ICR Capital — an affiliated transaction advisory business. In 2025, ICR acquired Consilium Strategic Communications (rebranded as ICR Consilium).

The firm has remained independent for its entire 28-year history. On January 6, 2026, Anton Nicholas succeeded Ryan as CEO. Tom Ryan continues with the firm as a founder.

Key Milestones

1998: Founded in Westport, Connecticut.

2012: Anton Nicholas joined ICR; built the firm's consumer group.

2018: Acquired Westwicke Partners.

2019 onward: Advised on nearly a quarter of all U.S. IPOs over $100M.

2025: Acquired Consilium Strategic Communications.

January 6, 2026: Anton Nicholas succeeded Tom Ryan as CEO.

Practice Areas

• Investor Relations. The firm's foundational practice.
• IPO Advisory. Pre-IPO positioning, roadshow communications, post-IPO IR.
• M&A Communications. #3 M&A PR Advisor (The Deal 2025); top 4 (Mergermarket).
• Capital Markets Advisory. Through ICR Capital.
• Crisis Communications.
• Sustainability and ESG.
• Healthcare and Biotech. Anchored by Westwicke and ICR Consilium acquisitions.
• Consumer.
• Technology.
• Financial Services.

Leadership

Anton Nicholas serves as CEO, having succeeded co-founder Tom Ryan on January 6, 2026. Before ICR, he was a partner at Sloane & Co and CEO of Financial Dynamics International's (now FTI Consulting's) North American operations. Tom Ryan continues as Founder.

Recognition and Industry Standing

• #7 in O'Dwyer's 2025 rankings with fee income of $156.6M.
• #3 M&A PR Advisor per The Deal with Intelligence 2025 League Tables.
• Top 4 M&A PR Advisor per Mergermarket.
• Nearly a quarter of all U.S. IPOs over $100M since 2019.

Why ICR Matters in the Category

ICR is the dominant U.S. independent firm at the intersection of strategic communications and capital markets. The firm's integrated-team model is the most differentiated service model in U.S. financial communications. Its IPO advisory franchise and ICR Capital affiliate give the firm a category position no holdco competitor has replicated.

EPR Coverage

Everything-PR has covered ICR since 2009. For the full archive see everything-pr.com/tag/icr.

Key Takeaways

• ICR is one of the largest independent strategic communications and advisory firms in North America.
• Founded in 1998 by Tom Ryan, Chad Jacobs, and John Flanagan.
• Differentiated service model: capital-markets veterans paired with senior communications professionals.
• CEO Anton Nicholas (since January 6, 2026, succeeding co-founder Tom Ryan).
• 400+ team members. #7 O'Dwyer's 2025 ($156.6M fee income).
• #3 M&A PR Advisor (The Deal 2025); top 4 M&A PR Advisor (Mergermarket).
• Since 2019, advised on nearly a quarter of all U.S. IPOs over $100M.
• Independent for its entire 28-year history.

Related Agency Profiles

M&A and financial PR peers: Joele Frank, Wilkinson Brimmer Katcher · Brunswick Group · FGS Global · Sard Verbinnen & Co · Kekst CNC · H/Advisors Abernathy · Prosek Partners · Stanton · RF Binder · Teneo

Healthcare PR (Westwicke / ICR Consilium): Real Chemistry · Havas Health & You · IMRE · Sam Brown Inc.

Top independents: Edelman · Finn Partners · Ruder Finn · MikeWorldWide

Adjacent EPR coverage: PR Agency Profiles Directory · PR Leaders Directory · Top Financial PR Firms in 2026