A B2B web agency is hired to build a site that has to do an unusual job: persuade several different people, over several months, in a purchase that will be scrutinised by procurement and possibly by a security review. That is a different brief from a consumer site, where a single visitor decides quickly. The agencies that do it well design for the buying committee, write for a technical evaluator, and treat the website as a piece of sales infrastructure rather than a brand exercise. This guide covers what the work should contain, what moves the price, and how to vet candidates on evidence.
What makes a B2B site different
Three things. The audience is a committee, so the site must serve the practitioner who wants to know how it works, the manager who wants comparisons and pricing, and the executive who wants proof and risk mitigation. That means parallel paths rather than a single funnel, and it means a site map with use case pages, industry pages, integration pages, comparison pages, a pricing page that says something real, and documentation an evaluator can actually read. Second, the cycle is long, so conversion is not one action but several: demo requests, trial starts, document downloads and, importantly, the ability to leave and return without losing the thread. Third, scrutiny is high. Security pages, compliance details, uptime information and customer evidence with real numbers are load-bearing content in B2B, not afterthoughts, and a site that omits them stalls deals it never sees.
What a competent engagement includes
Discovery that talks to your sales team and, ideally, to two customers, because the objections that stall deals are the site's real brief. An information architecture built from the buying committee rather than from your internal org chart. Messaging that survives a technical reader, which usually requires interviewing your engineers or consultants rather than paraphrasing a brochure. Design that is clean and fast rather than decorative, since B2B buyers read on laptops between meetings and abandon slow pages. A build on a content system your marketing team can actually operate without a developer for routine changes. Analytics and lead routing configured properly, including tracked forms, CRM integration and a self-reported source field. And a search foundation: crawlable structure, sensible URLs, structured data, and a migration plan with mapped redirects if you are replacing an existing site.
What moves the price, and where to spend
Page count and the number of use cases and industries you sell into is the first input, because each is a page set with its own language. Whether the agency writes the content is the second and largest variable, and in technical B2B it is where the money is best spent, since design cannot rescue copy that a practitioner finds hollow. Integrations are the third: CRM, marketing automation, product tours, trial provisioning and gated document flows each add real work. Custom design against a configured system is the fourth, and it is worth paying for only when you have a genuine brand position to express. Migration is the fifth line and should never be folded into a design fee, because URL mapping and redirect work is what decides whether the rebuild keeps the rankings the old site earned, a process Google documents specifically.
How to vet a candidate
Ask for three B2B sites the agency built in the last two years, then inspect them rather than reading the case study. Check whether the site serves the committee, meaning use case, integration, comparison and pricing pages actually exist. Load them on a phone and time them. Read the copy and judge whether someone who understands the product wrote it. Then ask process questions: what discovery produces, who writes, how many revision rounds are included, what happens after launch and at what rate, and how migration is handled. Ask for two clients you may contact and ask them what the agency did when the project slipped, because most do at some point. Agencies that publish pricing or disclose a minimum are easier to compare and generally more comfortable being held to a written scope. Because a rebuild and a search programme are usually bought together, ask whether the agency handles both or expects you to coordinate two vendors.
Questions people ask about b2b web agency
How is a B2B web agency different from a general one?
It designs for a buying committee rather than a single visitor, writes for technical evaluators, treats security, compliance and pricing content as load-bearing, and builds conversion paths for a months-long cycle. If a candidate's portfolio is mostly consumer brands and it cannot describe those differences unprompted, it is a general shop.
Should the agency also write the copy?
In technical B2B, usually yes, but only if it will interview your subject experts. Copy paraphrased from existing brochures reads hollow to the exact reader you need to convince. If you keep writing in-house, budget the internal time honestly, because content is the most common reason B2B rebuilds run late.
What does a rebuild cost?
It scales with page count, whether copy is included, integration complexity and how custom the design is. Rather than chasing a headline number, ask each candidate for its minimum engagement and what sits inside it, then compare like for like on those four inputs. Firms that disclose a floor are easier to evaluate.
Will a rebuild hurt our search rankings?
It can, and the migration plan is what decides. Every old URL needs a mapped destination and a permanent redirect, the new structure needs parity with what ranked, and the staging site should be crawled before launch. Ask the agency to describe its process specifically and treat a vague answer as risk you are absorbing.