If your company is in the business of creating better opportunities for clients, consider reselling SEO. While you are at it, consider a white label SEO for the best possible benefit. Your clients will never know that you do not actually produce SEO.
With white label SEO, your secrets are kept safe with the provider. The SEO does every piece of the nuts and bolts work involved in SEO, and you solicit new clients. You already probably have a client list and the potential for other clients to join you, making the transition seamless.
With a white label SEO, what you do means little to your clients. They believe you actually produce Seo when you do not, but the results they get is what matters. And provided you choose a worthy company with a widespread positive reputation, those results will be surprisingly amazing and extremely effective.