Ask for a technical and search audit for your site to learn what they think needs to be done, why, and what the expected outcome should be. You'll probably have to pay for this. You will probably have to give them read-only access to your site on Search Console. (At this stage, don't grant them write access.) Your prospective SEO should be able to give you realistic estimates of improvement, and an estimate of the work involved. If they guarantee you that their changes will give you first place in search results, find someone else.
First, we have a catchy story. A family making a world tour just thanks to Home Exchange! The couple are teachers with 3 kids. Everybody can identify to them. And they realise the dream of those people watching and it is possible thanks to Home Exchange. Anyone would like to understand how that is possible and would like to be in their place. That video, among other communication tools, created huge publicity for them. They have been contacted by the number one channel in France to make a TV report on their project!
Internet Marketing Inc. is one of the fastest growing full service Internet marketing agencies in the country with offices in San Diego, and Las Vegas. We specialize in providing results driven integrated online marketing solutions for medium-sized and enterprise brands across the globe. Companies come to us because our team of well-respected industry experts has the talent and creativity to provide your business with a more sophisticated data-driven approach to digital marketing strategy. IMI works with some clients through IMI Ventures, and their first product is VitaCup.