LLYC (formerly Lambert)
Lambert is a public relations, investor relations and integrated marketing firm founded in 1998 and headquartered in Grand Rapids, Michigan, with talent hubs in Detroit, New York, St. Louis and Phoenix. Its specialties include automotive and mobility, aerospace and defence, and M&A and private equity communications. Spanish group LLYC acquired the firm in February 2024, when it reported nearly 130 professionals and about $35 million in revenue; O'Dwyer's now lists it as LLYC U.S. with 110 staff and $23.2 million in 2025 net fees. Nobody pays to be ranked.
Why it’s hereThe largest PR firm headquartered in Michigan, ranked fourth on O'Dwyer's 2026 Midwest list and named among PRovoke's best US agencies for 2025. Number 9 of the PR firms in the Midwest.
Who leads itMike Houston, Partner and U.S. CEO, LLYC.
Estimated: $8,000–$15,000/mo, typical for Midwest PR retainers; not a quote.
Typical industry estimate, not a quote from any firm on this list.
A fit forCompanies that want corporate affairs and marketing communications from a Michigan-rooted team that is now part of the global firm LLYC.
- Based in
- Grand Rapids, MI
- Founded
- 1998
- Team size
- 51–200 people
- Led by
- Mike Houston, Partner and U.S. CEO, LLYC
- Known for
- public relations · investor relations · integrated marketing · automotive and mobility · M&A and private equity
- Best for
- Companies that want corporate affairs and marketing communications from a Michigan-rooted team that is now part of the global firm LLYC.
- Estimated cost
Estimated: $8,000–$15,000/mo, typical for Midwest PR retainers; not a quote.
Typical industry estimate, not a quote from any firm on this list.

OwnershipLLYC bought a controlling stake in Lambert in February 2024 and retired the Lambert brand on February 19, 2026; the firm now operates as LLYC in the U.S. and keeps a Grand Rapids presence.
Sources lambert.com, odwyerpr.com, provokemedia.com, globenewswire.com
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