There are numerous digital marketing companies worldwide, offering a wide range of services to help businesses grow their online presence and achieve their marketing goals. Here are some well-known digital marketing companies, although it's essential to conduct your research and consider your specific needs when selecting a company:

• WebFX: Based in Pennsylvania, USA, WebFX offers a comprehensive suite of digital marketing services, including SEO, PPC management, social media marketing, and web design.
• Ignite Visibility: A California-based agency known for its expertise in SEO, paid advertising, social media, and email marketing. They also offer reputation management and CRO services.
• Merkle: With a global presence, Merkle specializes in data-driven performance marketing, providing services such as SEO, PPC, CRM, and analytics.
• Neil Patel Digital: Founded by Neil Patel, a renowned digital marketer, this agency offers a range of services, including SEO, content marketing, social media, and paid advertising.
• Digital Marketing Agency (DMA): Based in the UK, DMA offers SEO, paid advertising, web development, and social media services. They also have a strong focus on eCommerce marketing.