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The website of a professional firm does one thing that really counts: it convinces an unknown visitor that you are the right person for their problem.
Content
Everything else — the beautiful design, the animations, the speed — serves this objective. If the site does not convert, it does not matter how aesthetically refined it is.
This guide is designed for accountants, lawyers, architects, management consultants, engineers and any professional who sells high-value services to business clients.
Why a professional firm website is different
A B2B professional site wants the user to do one thing only: contact you.
But the path leading to that contact is long. B2B clients do not buy on impulse. They evaluate, compare, look for reliability signals, read testimonials, look at case studies. Your site must sustain this evaluation journey.
Credibility before persuasion. A site that seems to be trying too hard to sell is perceived as untrustworthy in professional B2B. A site that demonstrates competence through quality content and concrete case studies generates trust — and trust generates contacts.
Clarity over creativity. B2B professional clients do not visit the site to be entertained. Every design choice must serve clarity.
The long term counts. A site that ranks well on Google for the right keywords brings qualified clients for years. It is an asset.
The structure: which pages are really needed
Homepage
5–8 seconds to answer two questions: what do you do and for whom. Essential elements: a clear headline (not “welcome to our firm” but a specific value proposition), a concise description of main services, immediate social proof, and a clear CTA for the next step.
Services pages
One page per main service, not a single page with everything listed. Reasons: SEO (each page can rank for specific keywords), clarity (each client comes with a specific problem), and depth (you can explain the service thoroughly).
Each services page must answer: what problem do you solve, how do you solve it, who is it for, what is included, how long the project takes, and a CTA for contact.
About page
In professional B2B, clients buy people before services. The about page includes the team with real photos, professional background with relevant credentials, and philosophy of work.
Portfolio / Case studies
Case studies are the most persuasive element. Not just listing clients — telling the problem, approach and results with real metrics. Three quality case studies are worth more than twenty client logos.
Blog / Resources
Quality informational content does two things: brings qualified organic traffic and demonstrates competence before the potential client even contacts you.
Contact page
Simple form (name, email, type of request, message) with declared response times. No form with 12 mandatory fields. A visible phone number. If you offer a free initial consultation, the booking link must be here.
UX design for B2B: what really works
Flat navigation. Maximum two menu levels. Maximum 5–6 items.
Readable text without effort. Body text at 16–18px minimum, generous line height, short paragraphs.
Loading speed. Google penalises slow sites in search results.
Mobile first, really. A significant portion of visits come from mobile — often in the initial research phase.
Clear and single CTAs. Each page must have one main clear action.
SEO for professional firms
Keywords with commercial intent. “accountant London” is worth more than “what is VAT” in terms of contacts generated.
Local SEO. For firms working primarily in a geographic area, local SEO is fundamental: optimised Google Business Profile, consistent NAP (Name/Address/Phone) across the web, genuine reviews.
Quality content over the long term. Informative articles that answer your potential clients’ questions bring qualified traffic for months and years.
Technology: WordPress, custom site or other
WordPress is the right choice for most firms: intuitive CMS that allows content updates without technical support, mature plugin ecosystem for SEO, excellent compatibility with any additional functionality.
Static sites (Jekyll, Hugo) are faster and more secure than WordPress. Ideal for those with internal technical skills. The limitation is that every content change requires code access.
Visual builders (Squarespace, Webflow) are valid for small firms wanting to manage everything internally.
The most common mistakes
Generic headlines. Specific is persuasive.
No visible social proof. If it is not visible, it does not exist for the visitor discovering you for the first time.
Contact forms that feel like an interrogation. Simplify the form, qualify in later stages.
Abandoned blog. A blog with the last article from 2022 says the firm does not have time. If you cannot maintain an active blog, better not to have one.
Get in touch — I analyse your current site, identify concrete priorities and tell you clearly what makes sense to do, in what order and with what budget.
Note: I respond in English.
