Here are 10 reputable advertising companies in the USA known for helping businesses grow, along with a brief description of each:
1. Wieden+Kennedy: Wieden+Kennedy is a global advertising agency known for its creative campaigns and innovative approach. They have worked with renowned brands and have won numerous industry awards for their work.
2. BBDO: BBDO is one of the largest advertising agencies in the world, known for its creative and strategic approach. They have a global presence and offer services across various advertising channels, including TV, digital, print, and social media.

3. Ogilvy: Ogilvy is a prominent advertising and marketing communications firm with a global presence. They offer a wide range of advertising services, including brand strategy, creative campaigns, digital marketing, and public relations.
4. Publicis Groupe: Publicis Groupe is a multinational advertising and communications company that provides a comprehensive range of services. They specialize in advertising, media planning, digital marketing, customer experience management, and data analytics.
5. McCann Worldgroup: McCann Worldgroup is a leading global marketing and advertising agency that offers integrated marketing solutions. They provide services such as advertising, brand strategy, digital marketing, social media marketing, and public relations.
6. DDB Worldwide: DDB Worldwide is an advertising agency known for its creative campaigns and strategic thinking. They provide advertising services across various industries and have a global network of offices.
7. TBWA Worldwide: TBWA Worldwide is a global advertising agency that emphasizes disruption and creativity in their campaigns. They provide services such as advertising, digital marketing, brand strategy, and content creation.
8. Leo Burnett: Leo Burnett is a well-known advertising agency that focuses on creating emotional connections between brands and consumers. They offer a range of advertising and marketing services, including brand strategy, creative campaigns, digital marketing, and social media marketing.

10. Saatchi & Saatchi: Saatchi & Saatchi is a global communications agency known for its creative and innovative approach to advertising. They offer services in areas such as advertising, digital marketing, brand strategy, and social media marketing.
These advertising companies have a strong track record of delivering successful campaigns and helping businesses grow. However, it’s important to assess your specific business needs, budget, and goals when choosing an advertising partner. Conducting thorough research, reviewing case studies, and considering industry recognition can help you make an informed decision.