We've been working with IT House since 2014 as our trusted technology partner. Their deep expertise in Sharetribe marketplace development and ability to handle complex technical challenges make them stand out.
Technology partner
We know Sharetribe
inside out.
We build Sharetribe marketplaces and the extensions, integrations, and custom features they need. EU-based senior team.
Not sure where to start? How to know if Sharetribe is the right starting point for your marketplace
Sharetribe fits if you want to start on a ready-made platform and build only what your model needs on top of it. If your pricing, commission, or approval rules don't fit a ready-made platform, see custom marketplace development.
30+
Sharetribe marketplaces
150+
projects since 2003
Since 2014
Sharetribe partner
We worked with Sharetribe’s development team on Sharetribe Go’s own codebase. Those changes shipped to every marketplace running on it. Read the Sharetribe Go core development case study
Already running on Sharetribe?
Taking over a Sharetribe marketplace someone else built
Your marketplace is live, but the developer who built it has disappeared, the code is hard to follow, or every change breaks something else. Often it started as the cheaper option. We have taken over many Sharetribe projects in this state. Often communication with the previous team had broken down. We take communication seriously, because a long-term partnership depends on it.
- Code audit. You send us access. We look at the code, the architecture, what works and what doesn't, and you get a written report of what to keep and what to fix.
- Stabilize. We fix what breaks first, so a change to one part stops breaking another.
- Then new features. Once the base holds, we build what's next and use our ready-made extensions where they fit.
What we usually find when we take over
- Servers nobody has updated in years.
- Deadlines that kept slipping, and a developer who got harder to reach.
- Often no maintenance plan, because nobody offered one.
Planning a new marketplace
Start with a discovery call. We tell you whether Sharetribe fits, then scope and build it.
How a project worksOn an older Sharetribe version
Moving from Sharetribe Go or an older template to the current platform.
Most of our clients stay with us for years.
We migrated our Sharetribe from another service provider to Gunars and IT House, and have been extremely happy with their work. Everything from communication to staging, development and service options has been premium quality and always on time.
Why work with us on your Sharetribe marketplace
Product experience since 2003, beyond Sharetribe
We've built enterprise platforms, SaaS products, e-commerce systems, and complex web applications. Every marketplace is a business, so we bring that product experience to your pricing model, onboarding flow, and growth strategy.
A team that's worked with Sharetribe directly
We work with Sharetribe's team directly. We understand how the platform works under the hood, so we debug faster and design an architecture that fits the platform.
Extensions we know inside out
Shopping carts, wishlists, checkout add-ons, customer verification, alternative payment gateways, and more. We know where the edge cases are.
Senior attention on every project
A dedicated project manager who knows your marketplace, backed by senior developers with 7+ years of experience. On complex problems, our founder joins the team to help find the best solution. You work with the same people from kickoff to launch.
The team has worked with many Sharetribe projects already so they can think creatively with you and solve problems in a cost efficient and effective way. … They kept the schedule, were professional and all features work as expected. Most importantly the developments don't block you managing everything from the console so you remain independent after.
Extensions and integrations we've built before
Payments · 10
Alternative payment gateways
Connects PayPal, iDEAL, or other regional payment providers alongside Sharetribe's standard Stripe setup.
Payment schedules by event date
Charges part of the price at booking and the rest before the event date, or everything at once when the date is near, with a reminder before each payment.
Multi-currency transactions
Lets customers browse and pay in several currencies, with conversion and settlement rules for your markets.
Advanced refund rules
Adds partial and automatic refunds to Sharetribe's standard cancellation flow and lets each seller choose the cancellation policy for their bookings.
Refundable booking deposits
Collects a refundable deposit as part of the booking payment.
Immediate payouts
Pays the provider right away instead of after the booking is completed, as in Sharetribe's standard flow.
SEPA direct debit payments
Accepts SEPA Direct Debit payments and shows customers whether a payment is still pending or confirmed.
Paid membership tiers
Adds a recurring membership fee to Sharetribe's access rights, with its own access or benefits for each paid tier.
PDF commission invoices
Generates numbered PDF commission invoices for both sides of a booking, downloadable only by the parties to that booking.
VAT invoices by email
Creates VAT invoices for VAT-registered customers and sends them by email.
Bookings · 7
Multiple bookings in a single checkout
Lets buyers book several sessions or services in one transaction.
Approval before payment
The provider accepts or declines a request first, and only then is the customer asked to pay, with no card authorization before that.
Later payment for early bookings
Charges bookings made far ahead, up to a year, closer to the booking date rather than when the booking is made.
Rental request cart
Collects rental items with their own dates and quantities in one cart and sends a separate booking request to each provider.
Preparation time between rentals
Blocks time before and after each rental to prepare and collect the equipment.
Minimum rental periods
Adds a minimum rental period to each listing and applies it in search, beyond Sharetribe's fixed-length sessions.
Delivery pricing by country and quantity
Prices rental delivery by destination country and quantity and shows it in the price breakdown, where Sharetribe has a fixed shipping fee for product orders.
Trust and safety · 4
Customer identity verification
Connects identity verification services such as Veriff, so customers are checked before they can transact.
VAT number check (VIES)
Collects company details at sign-up and checks the VAT number in the EU VIES system.
Legal agreements
Lets both parties create and sign agreements within the transaction.
Password strength indicator
Sets password complexity rules and shows how strong a password is as the user types it.
Seller tools · 4
Booking and transaction views
Adds separate views for bookings and transactions to Sharetribe's inbox, sorted by the upcoming booking date, with past bookings kept as history.
Seller-chosen order acceptance
Lets each seller choose whether their own orders are accepted manually or automatically.
Parent and child listings
Groups child listings, such as room types, under a parent listing, such as a property, each with its own price and visibility.
PDF documents on listings
Lets providers add PDF documents to bookable listings for customers to read, separate from Sharetribe's paid digital downloads.
Buyer experience · 8
Shopping cart
Adds a cart where buyers collect several listings and pay in one checkout, with one shipping or pickup choice for the whole cart.
Guest checkout
Lets customers buy without creating an account first.
Wishlist
Lets users save listings as favorites and come back to them later.
Listing ratings and review sorting
Shows the average rating on listing cards and lets customers sort search results to see top-rated providers first.
Coupons, vouchers, and referral systems
Adds coupons, vouchers, and referral programs, either custom-built or through third-party tools.
Checkout add-ons and custom pricing
Adds optional extras, bundles, and conditional pricing beyond Sharetribe's standard price variations.
Delivery address book
Saves several company delivery addresses and lets the customer pick one for each booking.
Related listings and browsing history
Shows related listings, the user's browsing history, and suggestions based on what they have viewed.
Integrations · 7
Voice or video call integration
Connects call services such as Zoom, Jitsi, or Whereby to the transaction.
Support chat integration
Connects an external customer support chat, such as Intercom, including tracking of user events.
Shipping software integration
Connects shipping software such as Shippo to manage deliveries.
Insurance integration
Connects transaction steps to third-party insurance providers through their APIs.
SMS transaction updates
Sends transaction status updates by text message.
Embeddable booking widget
Lets providers take marketplace bookings on their own websites through an embed script.
External CMS integration
Connects an external content management system for marketplace content, alongside Sharetribe's built-in Pages.
What we do with Sharetribe
- Custom transaction processes (booking, rental, purchase flows)
- Design customization that matches your brand instead of a default template
- Payment integration: Stripe built in, any additional gateway you need
- Custom user verification and onboarding
4 more
- Advanced booking logic: availability calendars, multi-day rentals
- AI-powered search, content generation, and recommendations
- Third-party integrations (CRM, analytics, email marketing)
- Migration from Sharetribe to custom platform (when needed)
How a typical Sharetribe project works
01
Discovery call
You tell us about your marketplace idea. We tell you whether Sharetribe is the right fit, or whether you need something else.
02
Scope & design
We define features, choose extensions from our library, and design your marketplace to match your brand.
03
Build
Custom transaction flows, integrations, design implementation. You see working progress throughout.
04
Launch & iterate
Your marketplace goes live. We help you onboard first users and iterate based on real feedback.
Timing depends on scope. Small changes take days, and a new marketplace usually takes 2 to 6 weeks.
Talking to us is free. Ask anything, and you'll leave knowing the next step.
Book a free callWe start with how your marketplace will work
We've built our own marketplace, so before features we talk through pricing, onboarding and growth, and share what we learned. The business decisions are yours.
We go through your feature list before building it
Which features does the first version need, and which can wait? Does your marketplace model fit Sharetribe, or does it need custom work?
Broader experience makes Sharetribe projects sharper
We migrated Betty Blocks from Ruby on Rails to Elixir for enterprise-scale performance. We've built legal tools for Karnov Group. That depth informs decisions on your marketplace, from pricing models to scaling architecture.
If Sharetribe is no longer enough, we're still here
Most marketplaces won't need this. Sharetribe can take you very far. If you need something Sharetribe can't do, there are two ways forward: we extend Sharetribe with custom development, or we help you decide whether it's time for a fully custom platform. Either way, you keep the same team.
Custom marketplace developmentOur rule of thumb on platform vs. custom
If Sharetribe covers 80% of what you need, stay with Sharetribe and customize the rest. If it covers less than half, a custom build might fit better. We'll tell you which side of that line you're on.
Custom marketplace developmentOur first-sprint guarantee
If after the first sprint you don't feel like we're the right partner, we stop and don't invoice for that sprint.
If we're the wrong fit, we'll say so on the first call and point you to a better option.
Book a free callFrequently asked
How long does it take to build a Sharetribe marketplace?
You can launch a basic marketplace in as little as 1 week. Most customized projects with design and integrations take 2 to 6 weeks.
What happens when I outgrow Sharetribe?
Most marketplaces never need to leave Sharetribe. If you need something Sharetribe can't do, we extend it with custom development or help you decide whether it's time for a fully custom platform. Either way, you keep the same team. See custom marketplace development →
Can you add AI features to my Sharetribe marketplace?
Yes, AI-powered search, content generation, and recommendations using OpenAI, Anthropic, or other models.
Do you work with Sharetribe directly?
We first met Sharetribe's founders, Juho Makkonen and Antti Virolainen, in 2012 at Innovation House in Finland, when Sharetribe was a two-person team. We became an official partner in 2014. Sharetribe CEO Juho Makkonen has publicly recommended our work.
Can you take over an existing Sharetribe marketplace?
Yes. We review what's already built, assess what's salvageable, and take it from there. We have also migrated an existing marketplace from Sharetribe Go to the new Sharetribe infrastructure, moving all users and listings without data loss.
Who owns the code?
On a Sharetribe build, the code we write for your marketplace is yours. Sharetribe itself stays a hosted platform you subscribe to. If we build a fully custom platform, you own the whole codebase.
Do you work with Sharetribe's no-code setup, the developer platform, or both?
Both. Sharetribe's no-code tools cover simple changes and its APIs cover complex features. We have worked with Sharetribe's own team since 2014.
Can my marketplace also have a mobile app?
Yes. A Sharetribe marketplace works in the phone's browser from day one, and for most marketplaces that is enough at launch. When your users want it on the App Store and Google Play, we can package the web version as an app or build a native app on Sharetribe's APIs. We have done both. We help you decide when an app is worth it, usually once you see how people use the marketplace on their phones.
What affects the cost of a Sharetribe project?
It depends on what you need. The main factors are the features and extensions you choose, how far the design moves from the default template, the integrations you add, and, for an existing marketplace, the state of the code we take over. We go through the specifics on the discovery call, then define features, extensions, and design in the scope step, before we give you an estimate.
Guides
Sharetribe
What is Sharetribe? Complete marketplace platform guide
One founder spends €50,000 on a marketplace that fails. Another launches on Sharetribe for under $300 a month and makes €10,000 in month three.
Sharetribe
How to know if Sharetribe is the right starting point for your marketplace
Launch on Sharetribe if the open question is whether users will list and transact. If the product hinges on a specialized workflow or regulation, custom may come first.
Sharetribe
What you should know before hiring a Sharetribe developer
Sharetribe isn't a drag-and-drop builder. Look for a partner who builds on what the platform already does and knows what not to build too early.
Sharetribe
6 practical features we build for Sharetribe marketplaces
Six small features, from add-ons at checkout to shopping carts, that make a marketplace smoother to use.
Sharetribe
Why Sharetribe is a future-proof foundation for your marketplace
A first version that keeps growing without a rebuild six months later: how Sharetribe's API-first core lets you add custom features step by step.
Sharetribe
Types of marketplaces you can build with Sharetribe: examples and ideas
Marketplace models that work on Sharetribe, from camera gear rental to event spaces, and three factors that help you pick yours.
Related work
reSound: A curated marketplace for pre-loved music gear
A curated Sharetribe marketplace where verified sellers list refurbished instruments, with advanced profiles, price negotiation, and a buying experience built for musicians.
Read the reSound case study →
Second Skin: Pre-owned marketplace for a niche community
A Sharetribe marketplace for buying and selling pre-owned items, with custom design, multicurrency listings, price negotiation.
Read the Second Skin case study →
Cropsie: Local homegrown produce marketplace
A Sharetribe marketplace for local gardeners, with multi-vendor checkout, iDeal payment integration, and custom design.
Read the Cropsie case study →Marketplaces we have helped build
Rental
Product
Service
Other
IT House developed reSound at lightning speed without ever compromising on quality. They turned our vision into a working marketplace, and they continue to deliver.
From Day 1, we've made continuous improvement steps together. Their experience from other marketplace projects gives us helpful advice on operational challenges and how to prioritize both customer and tour operator needs.
Ready to talk about your project?
Tell us what you're building and we'll tell you how we'd approach it.