I run an online marketing agency for socially conscious retailers. We do conversion rate optimization, email marketing, SEO and PPC. We have 25ish employees and our clients represent $700M+ in revenue.

Generally no, VC's don't consider digital/creative agencies to be in their purview. The multiples for service-based companies like agencies are quite low (usually between book value to 1.5x) so it doesn't fit their investment model.

In my career I've met one guy who invests in agencies/consultancies. And that's because he's built and scaled several and sold them to Big 4 firms.

However, if you have a product with traction that solves a real problem for your clients you'd have the ear of an investor. That's how Hootsuite started.

I hope this helps.