The cost of hiring a B2B web design agency varies a lot, and "a lot" is doing real work in that sentence. Scope, experience, complexity, and where the agency is based all pull the number in different directions. Knowing the rough price tiers at least helps you walk into a conversation without getting completely blindsided.

Smaller or boutique agencies typically charge between $10,000 and $30,000 for a foundational site. That usually gets you a custom design with 10–20 pages, basic SEO setup, a CMS like WordPress, contact forms, and Google Analytics. It's a solid starting point if your needs are straightforward.

Most established small-to-medium B2B companies doing a full redesign land in the $30,000–$80,000 range. At this level you're getting a real website strategy, actual UX research, CRM integrations, custom features, and multiple rounds of user testing, not just a theme with your logo dropped in. This is where the work starts to match the investment.

Enterprise projects run $80,000 to well over $250,000. That range covers multi-language or multi-region sites, ERP integrations, marketing automation connections, accessibility compliance, serious security requirements, and dedicated project management. These aren't websites so much as software projects that happen to have a front-end.

Beyond the build, many agencies offer monthly retainers running $2,000–$15,000. These typically cover performance reporting, conversion rate optimization, content updates, A/B testing, and technical maintenance. Whether that's worth it depends on how much internal capacity you have to actually act on the data.

A few things will move your number more than anything else: how many custom integrations you need, whether copywriting is included, how deeply SEO is baked into the build, and how many revision rounds the contract allows. Get specific answers on all of these before you sign anything.

The honest case for spending real money here is simple: a well-built B2B site generates better leads, loses fewer visitors, and shortens sales cycles. Done right, it pays for itself. Done cheap, you're usually back at the table in 18 months.