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Advertising Company

Gregory Welteroth Advertising (GWA)

Central Pennsylvania media buying and marketing agency running strategy and cooperative advertising for brands

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Gregory Welteroth Advertising (GWA) cover

About Gregory Welteroth Advertising (GWA)

Gregory Welteroth Advertising (GWA) is a group of media and marketing specialists based in central Pennsylvania. Regional, national and international brands have used it for more than three decades to plan media spending and carry out campaigns.

Products and services

Media buying: planning and purchasing across digital, traditional and less conventional channels.
Growth strategies: marketing plans aimed at reaching a brand's target audience.
Cooperative programmes: management of cooperative advertising schemes.
Execution support: help carrying out media plans once agreed.

Customers and markets

The agency's clients include regional, national and international brands.

Key facts

Based in: Central Pennsylvania
Experience: More than 30 years in media and marketing

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

What the business tells TrustList

Founded: 1996 (30 years) evidence sent

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