B2B Website Development Cost in 2026: Marketing Sites, Commerce and Portals
B2B website development cost by type
"B2B website" means four different things, and they differ in price by an order of magnitude. A marketing site tells the story and captures leads. A lead-generation site does the same with marketing automation, gated content and personalization behind it. B2B commerce lets known customers order at their own prices. A customer portal lets them manage the relationship: orders, invoices, documents, tickets. Many companies need two of these. Very few need all four on day one.
These ranges come from proposals we see and scopes clients bring to first calls, at blended rates between offshore and US agency levels. If you only need the first step, our general guide to website development cost goes deeper on templates, design and CMS choice. This article is about what changes when the buyer is a business.
Why B2B sites cost more than they look
A 30-page B2B site and a 30-page consumer brand site look similar in a sitemap. The B2B one usually costs 30–60% more, for three reasons.
The site does the selling before sales does. Gartner's research on the B2B buying journey found that buyers spend only about 17% of their purchase time meeting potential suppliers. The rest goes into independent research and internal alignment. In a Gartner survey of 646 B2B buyers run in August and September 2025, 67% said they prefer a rep-free buying experience. So the site needs content for every member of the buying committee: technical specs for the engineer, security and compliance pages for IT, ROI material for finance. More content types mean more templates.
Leads must arrive in the CRM clean. A consumer site can send an email to a mailbox. A B2B site has to create or update the right contact and company in HubSpot or Salesforce, keep UTM and campaign source, respect consent and route the lead to the right rep. That work is invisible in a design mockup and shows up in the integration estimate.
Known customers expect their own terms. Once a site lets customers order, it must know who they are: negotiated prices, contract catalogs, payment terms, approval limits, tax exemptions. Forrester expects US B2B ecommerce to pass $3 trillion by 2027, about 24% of all US B2B sales, so more distributors and manufacturers are being pushed into this tier, often from a spreadsheet and an email inbox.
What each type includes
- Scope: 6–12 templates (home, solution, industry, case study, resource, blog, careers, contact), custom design on WordPress, Webflow or HubSpot CMS, native CRM forms, analytics and consent.
- Cost: $20,000–$45,000. Timeline: 8–14 weeks.
- Good fit: companies whose sales happen in calls and demos, and the site's job is credibility and a steady flow of contact requests.
- Scope: 12–20 templates, a resource library with gated assets, progressive profiling, lead scoring inputs, a two-way CRM sync, personalization by industry or account, an ROI or pricing calculator, webinar and event pages.
- Cost: $45,000–$100,000. Timeline: 3–5 months.
- Good fit: SaaS and services companies with a marketing team that runs campaigns weekly and is measured on pipeline, not traffic.
- Scope: company accounts with buyers and approvers, customer-specific catalogs and prices, quick order by SKU, request for quote, net terms, a product configurator, catalog and inventory sync from the ERP or PIM.
- Cost: $80,000–$250,000 on Shopify Plus, BigCommerce B2B Edition or Adobe Commerce; more for custom builds. Timeline: 5–9 months.
- Good fit: distributors, manufacturers and wholesalers moving repeat orders off email and phone. Platform specifics are in our guides to Shopify and Magento costs.
- Scope: logged-in area with orders, invoices, shipments, contracts, documents and support tickets, reorder from history, user roles per company, SSO through Okta or Microsoft Entra ID, two-way ERP integration, audit logs and a security test before launch.
- Cost: $150,000–$500,000+. Timeline: 6–12 months.
- Good fit: companies where service and retention matter as much as acquisition. Strictly speaking this is a web application, and the cost logic in our web application development cost guide applies.
What B2B features cost
Most B2B quotes are a marketing site plus a list of features. Here is what the common ones add, in our estimates, at blended rates. Use it to check a quote line by line.
| Feature | What it involves | Typical added cost |
|---|---|---|
| Native CRM forms | HubSpot or Salesforce forms with tracking, hidden UTM fields, consent, routing rules in the CRM | $1,500–5,000 |
| Custom two-way CRM sync | Custom objects, deduplication, field mapping, retries and error alerts | $8,000–30,000 |
| Gated content library | Filterable resources, gates with progressive profiling, asset delivery, tracking in the CRM | $5,000–15,000 |
| Personalization / ABM | Content variants by industry, account or funnel stage via HubSpot smart content or an ABM tool | $6,000–20,000 |
| ROI or pricing calculator | Interactive estimator that feeds its inputs to the CRM as lead context | $3,000–12,000 |
| Product configurator | Rule-based options, compatibility checks, live price, quote PDF; CPQ-style rules cost more | $20,000–80,000+ |
| Request for quote | Quote cart, sales review in the back office, quote to order conversion | $8,000–25,000 |
| Customer-specific pricing | Price lists and contract catalogs per account, usually synced from the ERP | $15,000–50,000 |
| ERP integration | NetSuite, Dynamics or SAP: products, stock, prices, orders, invoices; one-way or two-way | $20,000–100,000+ |
| SSO and company roles | SAML or OIDC login, buyer and approver roles, spending limits | $6,000–25,000 |
| Documentation hub with search | Spec sheets, manuals, versioned PDFs, faceted search | $8,000–25,000 |
| Dealer or partner locator | Map, filters, partner data import or sync | $3,000–10,000 |
Two features in that table account for most budget surprises: ERP integration and the configurator. Both depend on your data more than on the vendor. If the ERP has clean item masters and a usable API, integration sits at the low end. If prices live in custom tables, spreadsheets and a sales manager's memory, the money goes into figuring that out. Our guides to API integration cost and NetSuite ERP implementation cost cover that side.
Estimate your B2B website cost
The calculator follows how we build an estimate: a base for setup and discovery, hours per template, hours per integration and feature, then about 30% on top for project management and QA. Pick only what you need at launch; it is easy to see how much a phase two saves.
B2B website build estimate
Assumes about 24 hours per custom template, fixed hours per integration or feature from the table above and clean source data. CRM and marketing automation licenses you already pay for are not included; the Shopify Plus fee is counted at about $28,000 a year. Content writing, translation and data cleanup are extra. Illustrative 2026 rates.
Try two things. Set the defaults (10 templates, native forms, gated content) and note the number. Then add a two-way ERP integration and a portal: the price roughly quadruples while the page count stays the same. That is the B2B cost curve in one move. Then switch the team location: the hours do not change, only the rate does.
Where the money goes
The split between design and integration flips as you move up the tiers. Here is how a $50,000 lead-generation site and a $220,000 B2B commerce project with a portal typically divide in our estimates.
This is why comparing B2B quotes on design portfolios alone misleads. The vendor with the prettiest case studies may have never debugged a NetSuite saved search or a Salesforce duplicate rule. Ask who on the team has done the integration you need, and how they test it. On our side QA is a separate role with its own budget, and only about 5% of tasks sent to QA come back to developers. For integration-heavy work that matters more than anywhere else, because sync bugs show up as wrong prices, not as broken layouts.
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Team region: the rate changes, the hours do not
The integration work behind a B2B site takes the same hours in Chicago, Kraków or Medellín. What changes is the rate, the time zone overlap and how much structure you need to provide.
US agency rates follow US wages. The Bureau of Labor Statistics put the median annual wage for web developers at $92,650 in May 2025, before benefits, payroll taxes and agency margin. Gilzor works from Poland and Cyprus, which for a US client is offshore: Warsaw is six hours ahead of New York, so we share two to four working hours with the East Coast on shifted schedules, and very little with the West Coast. For a B2B site that is usually workable, since reviews and integration checks fit in the overlap. Latin American teams give you more overlap at similar rates. Asian teams are cheapest per hour and need the most detailed specifications and review from you.
Which B2B build do you need?
Six questions. The result points to the tier to budget for, and flags when a portal or store is premature.
Which B2B website build fits your company?
Hidden costs in B2B website projects
The build is the visible part. On B2B sites, recurring software fees often exceed the maintenance itself, and they are rarely in the agency's quote because the client pays the vendor directly.
| Cost item | Typical range | Notes |
|---|---|---|
| Maintenance and small changes | 15–20% of build cost per year | Updates, security patches, integration fixes when the CRM or ERP changes its API or fields. |
| Marketing automation | $9,600–43,200+ per year | HubSpot Marketing Hub Professional starts at $800 a month billed annually ($890 month to month) with three seats, Enterprise at $3,600; onboarding fees ($3,000 and $7,000) and larger contact tiers are extra. Salesforce Account Engagement Growth is listed at $1,250 a month. |
| Commerce platform | $27,600+ per year | Shopify Plus starts at $2,300 a month on a three-year term, $2,500 on one year, with variable fees for high-volume merchants. Other platforms price by revenue or order volume. |
| Integration middleware | $3,000–30,000 per year | iPaaS or connector licenses for ERP sync, if you do not build the integration directly. |
| Search, personalization, ABM tools | $0–60,000+ per year | Site search, intent data and account-based tools. The top end belongs to enterprise ABM platforms. |
| Security testing | $5,000–30,000 per test | For portals and stores with customer data. Enterprise customers increasingly ask for it in security questionnaires. |
| Hosting and monitoring | $600–12,000 per year | From managed WordPress to cloud hosting for a portal with staging, backups and uptime alerts. |
| Data cleanup | One-off, often underestimated | Duplicate CRM records, inconsistent SKUs, price lists in spreadsheets. Somebody has to fix them before they are synced. |
A $60,000 lead-generation site on HubSpot Professional costs roughly $60,000 + 3 × ($10,000 maintenance + $9,600 license) ≈ $119,000 over three years. That is fine if the site produces pipeline. It is a reason to ask for the full three-year number before you sign.
What we see in estimates and first calls
Over seven years and 70+ launched projects, the same patterns repeat when B2B site budgets go wrong.
- The portal hidden inside the redesignThe brief says "new website", and on page four it mentions a customer login with order history. That one line can cost more than the whole marketing site. We split these into two estimates so you can see and schedule them separately.
- Nobody owns the lead data modelMarketing wants fifteen form fields, sales wants five, and the CRM has three fields named "Industry". Until someone decides, the integration cannot be finished. A short workshop with both teams saves weeks.
- Pricing logic that lives in people's headsConfigurators and customer pricing stall when the rules are not written down anywhere. A paid discovery phase that ends in a rules table is cheaper than discovering exceptions during QA. This is the core of our business analysis work.
- No sandbox for the ERPIntegration teams sometimes wait weeks for test credentials or a sandbox copy of the ERP. Ask your IT for access before the project starts, not when development reaches the integration.
- Personalization before trafficAccount-based personalization needs enough traffic from target accounts to matter. On a site with a few thousand visits a month, the same money spent on case studies usually does more.
None of this is unique to websites. The Standish Group's CHAOS research has reported for years that only around a third of software projects finish on time, on budget and with the planned scope, with unclear requirements among the leading causes. B2B sites with heavy integrations behave like software projects, and they need the same discipline. Our 98% on-time delivery rate depends on it.
How to reduce the cost without breaking the site
- Separate the marketing site from the portal. Different users, different release cycles, different security needs. Building them as one project makes the marketing site slower to change and the portal harder to secure.
- Use native CRM forms first. HubSpot and Salesforce forms with proper hidden fields cover most lead capture needs. Build a custom sync when you hit a real limit, not in advance.
- Launch the configurator with the common rules. Cover the options that make up most orders and route the rest to "request a quote". Add rules as sales feedback shows which ones matter.
- Integrate the ERP one way first. Catalog, stock and prices into the site; orders back by email or CSV for the first months. Two-way sync comes in phase two once the data is trusted.
- Pick a platform for commerce. B2B features on Shopify Plus, BigCommerce or Adobe Commerce are cheaper than writing account pricing and approvals from scratch, unless your rules are unusual.
- Fix the price on a clear scope. After discovery, templates and integrations can be estimated precisely. That is when a fixed-price contract works well.
- Choose the rate, keep the process. An offshore or nearshore team at $50–80 an hour can build the same scope for a third to a half of a US agency price, if specifications, reviews and QA stay as strict. We can start development within two weeks of signing.
Questions to ask every vendor
- Which templates and which integrations are in the price, listed one by one?
- Which CRM objects and ERP entities does the integration cover, in which direction, and how are errors handled and reported?
- What licenses will we pay for after launch, and at what tier?
- Who has built this integration before, on this CRM or ERP?
- How is integration tested: against a sandbox, with real data samples, by whom?
- What does maintenance cost per month, and who owns the code, accounts and data?
If the project is bigger than a website, our guides to enterprise app development cost and CMS development cost cover the neighboring decisions.
FAQ
How much does a B2B website cost in 2026?
Why does a B2B website cost more than a B2C site of the same size?
How much does it cost to integrate a website with HubSpot or Salesforce?
Should B2B commerce be built on Shopify Plus, BigCommerce or Adobe Commerce, or custom?
How much does a B2B customer portal cost?
How long does it take to build a B2B website?
Where Gilzor fits
We build B2B marketing sites, lead-generation sites and customer portals as part of our web development service, usually for SMBs and product companies that need the site and the systems behind it to work together. We are most useful where integrations and business rules start: CRM sync, configurators, ERP data and portals. If all you need is a credible six-page site on HubSpot CMS, a smaller studio or a template may be the better buy, and we will tell you so.
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Tell us what you’re building. We’ll reply with options, a rough cost and timeline. If we’re not the right fit, we’ll say so.
Co-Founder of Gilzor. Works with founders and product companies on how to staff and run engineering: team extension, dedicated teams, and getting stalled projects moving again.
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