It can be hard to define your exact needs when approaching an agency for the first time. For example, if you plan to focus on using SEO and PPC, then hiring a marketing agency that holds certifications in these methods would be the sure-fire way to steadily grow your business. But if your requirements are still undefined, you should look at agencies with a variety of certifications and experience across the industry.
To better understand if an agency will suit your needs, you should assess their website and other platforms to make sure their expertise covers the areas of digital marketing your brand will benefit from, now and ideally in the future. You’ll want to feel assured of their level of commitment to staying up-to-date and in-depth with their expertise, through renewal of their relevant certifications as well as engagement within the community.

The most sought-after certifications
Although there are many online marketing courses with certifications that agencies and professionals can acquire, we’ll look below at two that are in particular demand: Google and the Digital Marketing Institute.
Google's certifications are in demand. A 2021 report from CMSWire