Trevelino/Keller Acquires Marsden Marketing

Microsoft Acquires The Marsden Group

March 16, 2021

Industrial Services

Microsoft has acquired The Marsden Group, a provider of industrial technology innovation and rapid prototyping, to accelerate development of cloud, edge, IoT and AI-enabled industry solutions. The acquisition expands Microsoft's capability to help asset-intensive industries (manufacturing, automotive, logistics) quickly prototype, experiment and implement digital solutions.

Mars Acquires Kellanova

December 11, 2025

Food & Beverage

Mars, Incorporated has acquired Kellanova in an all-cash transaction valued at $35.9 billion ($83.50 per share). The deal brings Kellanova's snack and breakfast brands — including Pringles, Cheez-It and Pop-Tarts — into the Mars Snacking portfolio to expand Mars' global snacking scale, capabilities and product categories.

Walker Sands Acquires KoMarketing

January 25, 2023

Marketing & Advertising

Walker Sands, a Stone-Goff Partners portfolio company, has acquired KoMarketing, a Boston-based B2B demand generation agency. The deal deepens Walker Sands' top-of-funnel capabilities—including paid digital advertising and SEO—and KoMarketing will operate as KoMarketing, a Walker Sands company reporting into Walker Sands leadership.

Hawke Media Acquires Leverage Marketing

May 30, 2023

Marketing & Advertising

Hawke Media has acquired Leverage Marketing, a digital marketing agency led by CEO Bob Kehoe, to combine performance marketing services and advanced e-commerce marketing capabilities. The acquisition brings Leverage’s software-driven performance tools and analytics into Hawke Media’s service offering to expand capabilities for clients across retail, e-commerce, healthcare and other end markets.

GR0 Acquires TM Marketing Consultants

June 14, 2022

Marketing & Advertising

Los Angeles-based digital marketing agency GR0 has acquired TM Marketing Consultants, a Google Ads specialist agency based in Los Angeles, and will integrate TM Marketing's ten-person team to launch a new Google Ads service division. The deal expands GR0's capabilities beyond SEO into paid search, providing a fuller search marketing offering for its DTC and B2B clients.

Madden Media Acquires Karsh Hagan

December 16, 2025

Marketing & Advertising

TobinLeff served as exclusive M&A advisor to Denver-based Karsh Hagan on its merger with Tucson-based Madden Media. The transaction combines Karsh Hagan’s creative and brand capabilities with Madden Media’s integrated media, PR and data-driven tourism expertise to expand the combined agency’s footprint and service offerings.