“Challenger Brand Marketing®” Named Amazon Bestseller SAN FRANCISCO, May 23, 2023 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com), the champion of the challenger brand, today announced that its new marketing handbook, “Challenger Brand...

Gumas Advertising Releases “Challenger Brand Marketing®” SAN FRANCISCO, Feb. 13, 2023 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com), the champion of the challenger brand, today announced the release of a new book, “Challenger Brand Marketing®,”...

Gumas Advertising Appoints Sarah Jayne Gipson as Senior Digital Marketing Manager SAN FRANCISCO, Feb. 02, 2021 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com), the champion of the challenger brand, today announced that Sarah Jayne Gipson has joined the agency as the new...

Gumas Advertising Names Kyle Gosselin Digital Marketing Manager SAN FRANCISCO, Oct. 01, 2019 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com) the champion of the challenger brand, today announced the appointment of Kyle Gosselin as the agency’s new Digital...