Listen, Dallas is a big marketplace and you have over 400 SEO companies to choose from. This means, should you decide to vet a few, you're likely to get quoted anywhere from a few hundred dollars a month to five figures a month. A lot of agencies also quote hourly retainers. So long as you're working with a reputable agency who has stellar reviews and case studies, most small business SEO services in Dallas shouldn't eclipse $5,000/month with many being closer to $2,000/month, depending on your industry.