Online Marketplace Development Company

We’ve built 6 scalable marketplaces that keep growing and delivering high ROI on tech investment. Let’s build yours.
  • badge.name
    Top Software Development Company, 2025
  • badge.name
    Top Software Development Company in Ukraine for Startups
  • badge.name
    Top Software Development Company for Small Businesses
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    Listed Among Top 1000 Companies Globally

Heiko Roth
Heiko Rothusa

COO of Agilea Solutions, CEO at Workerbee

We’ve found a great team with good expertise and value.

$12M Revenue Tech Co.

MBE Certified by NMSDC

Iman Fadaei
Iman Fadaeiuk

Founder & CEO

They have broad knowledge and are ahead of their competitors technically.

Serves Genpact

$400M portfolio company

01 | 02

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

UCSF-Trusted Health App

with 50K+ users in 60+ countries

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

Telecom Experts Est. 2005

Google, Proximus & Orange partners

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Top Swiss Agency

Awarded #1 Swiss App in 2025

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Google Cloud Partner

Trusted by Fortune 5 UHG

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

UCSF-Trusted Health App

with 50K+ users in 60+ countries

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

$12M Revenue Tech Co.

MBE Certified by NMSDC

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

NYSE: EB

850k creators | 300M tickets sold in 2023

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Developing marketplaces right

Custom user experiences

Focus on creating a marketplace that’s easy to use and good to look at. Nothing overcomplicated, just right.

Secure payment systems

Integrations with safe and secure payment gateways like Stripe ensure trustworthy transactions for your users.

Seamless third-party integration

From payment gateways to analytics tools, we make sure your platform connects with everything you need.

Bogdan

Head of delivery

Let’s build your marketplace without panic sprints

Our marketplace projects run with <10% CPI/SPI variance, giving you predictability and control, backed by our 10+ years of development experience.

Testimonials

Heiko Roth
Heiko Rothusa

COO of Agilea Solutions, CEO at Workerbee

Clockwise Software has been helping us create a digital marketplace for web and mobile platforms from scratch. They have been able to plan a great project with a limited budget. They’ve adhered to that plan, making us trust their work in every sprint that we start with them. They are valued members of our team, and we don't see that changing.
Iman Fadaei
Iman Fadaeiuk

Founder & CEO

We needed help to make our marketplace into a product, available as a service to people. Clockwise built the technology from a single marketplace into a multi-level marketplace solution. They've done exactly what we asked, delivering with technical skill, professionalism, and timeliness. Their team is clear, organized, and always available, accommodating our needs.
Ignacio Doncel
Ignacio Doncelusa

Founder at WishYoo

We needed to enhance our UX by redesigning our platform to make it more engaging. Clockwise Software restructured the backend to ensure intuitive functionality and delivered an eye-popping design. They were professional, always available, and effective communicators, quickly learning our tools. The system passed stress tests with 5,000 users and showed no lag, exceeding our expectations.
Jordan Parker
Jordan Parkerusa

Head of Engineering at Pantastic

The team was available to us full-time and went through our regular stand-up meetings and sprints. It almost felt like we had another engineer. They had high technical competency and were able to understand code and write it for us. We think they’re great engineers.
Tanner Markley
Tanner Markleyusa

Acquisitions Associate

Faced with the urgent need to digitize business processes during the pandemic, we turned to Clockwise Software. The team worked with passion and creativity, delivering innovative solutions that automated workflows and stayed within our budget and deadlines. Their collaborative approach and regular updates ensured the project met our needs and laid a strong foundation for future automation.
Rachel Efron
Rachel Efronusa

Founder & CCO at Muzi

Clockwise Software excels at project management; they're very diligent and reliable. We can count on them. We've worked with a couple of organizations before, and this is the first time we know that if we send a list of things, the team will pay attention to every item. We don't have to worry about missing details. Clockwise is invested in realizing our vision and is willing to share their feedback.
Patrick Minder
Patrick Minderswiss

Chief Executive Officer & Member of the Board of Directors at JLS Digital Ag

We were contracted to build custom software for a client in the health industry and worked with Clockwise Software on the project. They handled very difficult server infrastructure, connecting three environments seamlessly. The project was completed on time and within the agreed-upon budget. They are very professional and adhere to deadlines. I'm very happy with them.
01 | 0701 | 04

Marketplace development process

Here’s how we bring your product to life:

1. Discovery: Set the foundation

We start by deciding on the optimal tech approach to build a marketplace that matches your goals. From functionality breakdown to detailed product requirements, architectural design, and risk register, we consider every detail and confirm it with you. By the end, you’ll have a clear, actionable plan that shows exactly how we’ll bring your vision to life, without surprises.

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2. Design: creating seamless user experiences

A great marketplace balances ease of use with a design that catches attention. We focus on user-friendly navigation, intuitive flows, and an attractive visual style that sets your marketplace apart. Before moving forward, we’ll share wireframes and an interactive prototype, giving you the opportunity to explore the design firsthand. Your feedback guides the final touches, ensuring everything looks and feels exactly as you envisioned. Whether it’s guiding users through complex workflows or adding elements that make your brand memorable, our goal is to deliver a design that works for your audience and business.

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3. Development: Bring it to life

Our marketplace development services are based on transparency and expertise. Our developers bring 10 years of experience in building B2B, B2C, and C2C marketplaces to create your platform from the ground up. We set up a scalable infrastructure that can handle growing traffic, implement functionality and design in code, and integrate your marketplace with third-party tools, configuring APIs to work exactly as you need. By following PMI standards and Agile practices, we keep your project on track and deliver everything on time and within budget, even if unexpected changes come up in the process.

4. Testing: Polish the platform

It’s time to make sure your marketplace matches your quality metrics across all areas: functionality, security, performance, and usability. We identify potential issues, check if features meet product requirements, and fix the found flaws before launch. For each project, we have a custom testing plan, so we do only what matters and brings value. It can be regular code checks for smaller projects or a full suite with automated tests, stress testing, and security audits for complex platforms. We approve the test plan with you at the start and follow it throughout the testing stage, ensuring no details are overlooked and no unnecessary steps are taken.

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5. Deployment: Make your marketplace live

When your marketplace is ready, we focus on the product launch, which is a bit more than just hitting “go.” From coordinating the timing to handling last-minute adjustments, we’re there with you at every step. After launch, our online marketplace development services don’t end. When you have feedback from early users, we’re quick to refine your platform, helping you align with the market demands and make sure the marketplace is ready for the long run.

6. Growth: Partner for the long run

Whenever you’re ready, we’ll be here to help you grow your business. Our team can take over refining features, adding new ones, enhancing user experience, or scaling the platform. If you’re ready to wrap up, we’ll ensure a smooth knowledge transition with all documentation in place. However, if long-term collaboration fits your plans, we’re here to grow alongside your product, providing the flexibility you need to meet your objectives.

No-surprise marketplace development

Staying on schedule

Sticking to budget

Clear transparency

Managing risks proactively

Staying on schedule

Marketplace development is complex, but staying on schedule doesn’t have to be. By tracking Schedule Performance Index (SPI) and setting realistic milestones, we keep progress steady. Got new features or shifting priorities? We discuss changes upfront, showing how they’ll impact the timeline, so the estimated release date stays achievable.

on-schedule marketplace development

What sets us apart?

  • Instant marketplace expertise. We’ve built B2B, B2C, and C2C marketplaces before
  • Flexibility to scale resources. We provide the right talent when you need it
  • Clear communication. Regular updates, check-ins, demos, and a communication plan
  • Tailored development process. Adapting to your needs with PMI standards in mind
  • Transparency from the start. Complete access to all docs and code at any time

5+

created marketplaces

99.89%

acceptance rate

<10%

CPI & SPI variance

10+

years of experience

Clearing up your concerns

Will the marketplace fit our business model and user needs?

Yes, that’s our goal when building a marketplace. We start every project by discussing with you your goals and any specific requirements you have for the platform. Based on this information, we define your platform’s functionality, how it will operate, and the criteria it needs to meet. Not sure how a feature must work to meet you user needs? Don’t worry, working on different marketplaces we’ve seen what works best for users and businesses, so we’ll recommend the optimal way to implement functionality for your platform.

Can you migrate us from an existing platform to a custom one?

Absolutely. Migration is one of the services our online marketplace development company provides. We’ll first analyze your existing platform, data volumes and types, and necessary integrations. That way, we can plan migration carefully to avoid downtime or data loss. We’ll transfer everything — user accounts, listings, transactions — without interrupting your business operations and user experience on the platform.

Can it handle more users as we grow?

Yes, we build scalable platforms, choosing a tech approach that supports your marketplace growth: cloud-based infrastructure, efficient database solutions, and architecture designed to handle increasing user activity. The system can easily adjust, scaling infrastructure resources to meet the demand.

Will it integrate with payment gateways or shipping services?

Yes, we have integrations covered. At the start, we’ll assess your needs and the services you plan to use, diving into their APIs to ensure it’s possible to configure connections to your needs without problems. We’ve done 100+ integrations across our projects, so we’re already aware of the limitations and corner cases of multiple APIs. Plus, this experience helps us pick reliable options if you’re unsure what service to use.

How do you keep user data secure?

We adhere to a set of industry-standard security practices, including data encryption, multi-factor authentication, and role-based access control, to protect sensitive information. For marketplaces, we also handle specific concerns like keeping payments secure and managing personal data in line with region-specific regulations (like GDPR, for example).
If you have any specific requirements, we’ll take them into account as well. We discuss security requirements at the start of every project and outline necessary measures to meet them.

Can it support multiple languages or currencies?

Yes, if you need your marketplace to support multiple languages and currencies, we can implement it. That means handling translations and formatting dates, numbers, and addresses correctly. For payments, we can set up gateways like Stripe that let users pay in their preferred currency, ensuring a great experience regardless of their location.

How will you optimize it for SEO?

We take care to make your marketplace easy for search engines to crawl and rank. For example, we optimize page load speed, make the platform mobile-friendly, and implement metadata.

Can you meet our quality standards?

We clarify your quality standards at the start and outline system requirements and testing strategy with them in mind. During development, we keep quality in check with testing and share regular demos so you can see the mid-project results and provide feedback. Our agile approach lets us adjust if your requirements change, without compromising on quality. Thanks to this structured process, we have a 99.89% acceptance rate of our work.

How do you keep us in control throughout the process?

You’ll have full access to everything: documentation, design files, code repositories, Kanban boards, and more. Plus, our marketplace development services include frequent demos and sprint reviews, giving you the opportunity to review and approve work at every stage.

We also set up clear communication channels and regular calls with you. That way, your input is always included, decisions happen together, and any changes are agreed on upfront.

Do you help us retain expertise over the parts we outsource?

We keep detailed records of features, system requirements, technical approaches, and workflows so nothing gets lost. Your team will have full access to code repositories, documentation, and all deliverables.
Plus, if you plan to manage the marketplace in-house or switch to another marketplace development company after project delivery, we provide complete knowledge transfer sessions to make sure your team is ready to take over.

How can we be sure you’ll deliver exactly what’s agreed on?

We make sure everything we deliver matches what we agreed on. We define and document all requirements — features, designs, technical approach, and more — at the start and confirm them with you. As the project moves forward, you’ll have access to code repositories and documentation. Plus, we run regular live demos so you can see progress in real time and provide feedback on anything that needs adjusting.

 

Our track record speaks for itself — 99.89% of our work meets client expectations.

Will the team be consistent so they understand our product?

Most of our engineers stick around for years, on average for 3.8 years. So the people who start a project usually see it through, getting a deep understanding of goals and technical needs.

 

If someone key does move on, we have knowledge transfer and onboarding processes in place. Everything critical is documented and shared, and new team members get up to speed fast, without disrupting the progress.

Can we take the outsourced code for internal maintenance?

We make sure you have full visibility and control over the code. You’ll have access to the repository, documentation, and all deliverables from the start. To make internal maintenance straightforward, we document the architecture, workflows, and key integrations. Our marketplace development services include a structured knowledge transfer process with walkthroughs, Q&A sessions, and technical handovers so your team can confidently manage the marketplace on their own.

Will language barriers affect communication?

98% of our clients are from the US and UK, and they say our communication is clear and efficient. We make sure technical details and project updates are always easy to understand. Plus, we set up a communication plan with defined roles, channels, and regular updates to keep everyone on the same page. Whether it’s messages, calls, or demos, we make sure communication stays smooth throughout the project.

Will we retain full IP ownership of the product?

Yes, you’ll keep full ownership of your marketplace. From the start, everything we create for your project belongs to you. Our contracts make it clear that the code, design, and all deliverables are entirely yours.

How do you endure stability, given the situation in Ukraine?

Our team is spread across multiple locations in Ukraine and abroad, which helps us stay fully operational without major interruptions. We’ve successfully scaled projects and maintained long-term contracts, keeping headcount and delivery consistent even during the war.

 

On top of that, our energy independence reduces downtime risk, so we can keep projects moving and maintain business continuity no matter what comes up.

How do you keep estimates accurate and our budget on track?

Our experience in marketplace development lets us set realistic timelines and budgets from the start. Because we’ve built marketplaces before, we can accurately estimate the time and resources each part of your platform will need.

 

During development, we track the Schedule Performance Index (SPI) and Cost Performance Index (CPI) to see how the project is progressing against the plan. If anything changes, we will review the impact on schedule and budget with you and make adjustments so we stay on track. This method keeps our projects’ SPI and CPI variance under 10%.

Rough marketplace development service costs

Discovery and prototype

$15,000 to $50,000

Refine your idea and validate it with a small-scale prototype

Features

  • Clear app requirements
  • Clickable app prototype
  • Proof of concept (PoC)
  • Feature list
  • Time and cost estimates

Minimum viable product

$50,000 to $100,000

Start building your online marketplace with minimal initial investment

Features

  • Template-based design
  • Essential features for quick launch
  • Third-party integrations
  • Basic security
  • Limited use cases

Sales-ready product

$100,000 to $500,000

Launch a monetization-ready application

Features

  • Custom design
  • Broader, custom-built functionality
  • Third-party integrations
  • Enhanced security
  • Monetization-ready, if applicable

Market-leading application

$500,000+

Prepare to beat the competition right away

Features

  • Brand-focused UI/UX design
  • Cutting-edge functionality
  • Multi-module architecture
  • High scalability
  • Dedicated app maintenance

Factors influencing the cost:

  1. Complexity of features
  2. Design requirements
  3. Required integrations
  4. Security requirements
  5. Supported platforms and devices
  6. Product development team composition

Key people

Andrii
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
Andrii
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
Bogdan
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
Bogdan
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
Serhii
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
Serhii
🚞 Traveller
Gym rat
☕ Coffeeholic
Natalia
Natalia
Head of People
10 y. of experience | 100+ hired talents
Natalia
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
Mike
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
Mike
🧑‍🍼Father of 3
Pavlo
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
Pavlo
💨 Motorhead
🧰 Tinkerer
Andrii
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
Andrii
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
Bogdan
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
Bogdan
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
Serhii
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
Serhii
🚞 Traveller
Gym rat
☕ Coffeeholic
Natalia
Natalia
Head of People
10 y. of experience | 100+ hired talents
Natalia
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
Mike
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
Mike
🧑‍🍼Father of 3
Pavlo
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
Pavlo
💨 Motorhead
🧰 Tinkerer
Dmytro
Dmytro
Tech Lead
15 y. of experience | 10+ AWS projects led
Dmytro
🏎️ F1 Fan
🍻 Beer connoisseur
☕ Coffee aficionado
Yana
Yana
Design Lead
12 y. of experience | 100% UI/UX acceptance rate after user tests
Yana
👩‍🎨 Local artist
🧘‍♀️ Yoga practitioner
🦻Hearing Accessibility Advocate
📚 Bibliophile
Bogdan
Bogdan
QA Lead
17 y. of experience | QA Lead on 10+ multi-domain projects
Bogdan
🎓 Nerd
⛷️ Ski fan
Strong Spirits expert
Andrii
Andrii
Project Manager
8 y. of experience | 30+ projects delivered
Andrii
🏎️ Junior Car Drifter
🧳 Traveller
☕ Coffee enthusiast
Tetiana
Tetiana
Business Analyst
5 y. of experience | Saves $30K on avg./client with discovery
Tetiana
🧠 Braving the unknown
💬 Empathy-driven communicator
🏖️ Passionate traveler
Yelyzaveta
Yelyzaveta
Tech Lead
9 y. of experience | 10+ React projects led, 1.5+ years each
Yelyzaveta
⛸️ Figure skater
🏔️ Explorer at heart
🪴 Bonsai & bloom keeper
📖️ Avid reader
Dmytro
Dmytro
Head of Marketing
10+ y. of experience | Generates $10M+ in annual sales pipeline
Dmytro
🧘‍♀️ Mindfulness
🐢 Downshifting
🎧 DJ
🧠 Psychology
🌅 Sunsets
01 | 05

Technologies we use

Frontend
50+ skilled devs
1M+ app users/mo.
React
Vue JS
Angular
Next JS
Backend
70+ highloaded systems developed
100+ API integrations with global systems
Node JS
Laravel
Ruby
Mobile
30+ apps 4.7+ rated
50+ interfaces with NPS>85%
React Native
Kotlin
Infrastructure
90+ cloud hosted apps
99.99% uptime reached
CI/CD: 30% release speed up
AWS
Google Cloud
Azure
Docker
LLM
40+ hrs/month saved by AI assistant
Models trained with 95% accuracy
GPT-4
Claude
Llama-AI
Gemini
Generative AI APIs
Processing up to 1TB of generative data per day
Midjourney
GPT-4
Stable Diffusion
AI languages and frameworks
100+ models for data analysis and predictions
Python
R
PyTorch
Tensor Flow

Awards

Show more
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian IT Services Company for Real Estate
Top Ukrainian IT Services Company for Real Estate
Top Software Developers for Advertising and Marketing, 2025
Top Software Developers for Advertising and Marketing, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top Software Development Company in Ukraine for Startups
Top Software Development Company in Ukraine for Startups
Top Software Development Company for Small Businesses
Top Software Development Company for Small Businesses
Top React Development Company
Top React Development Company
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Spring 2024
Top B2B Company Globally, Spring 2024
Top Software Development Company, 2023
Top Software Development Company, 2023
Top IT Services Company, 2023
Top IT Services Company, 2023
Most Reviewed Software Developers on Clutch
Most Reviewed Software Developers on Clutch
Top NodeJS Development Company, 2023
Top NodeJS Development Company, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2020
Top Ukrainian Development Company, 2020
Top Ukrainian B2B Company, 2019
Top Ukrainian B2B Company, 2019
Top Ukrainian Development Company, 2018
Top Ukrainian Development Company, 2018
01 | 25

Focus on your business while we handle development

Trusted by 200+ clients, we deliver scalable solutions and do it with <10% CPI variance. Let’s talk about your needs.
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Marketplaces built right
Case studies
Testimonials
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No-surprise development
What sets us apart?
FAQ
Development costs
Technologies we use
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