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Digital products tailored to your needs

End-to-end development, IoT, and AI expertise under one roof.

At Notch, we bring together the best of software and AI engineers, designers, analysts, and consultants to empower B2B organizations to deliver measurable business results and real value. 

Our expertise in user-centered design, custom software innovation, and the latest AI technologies lets leading enterprises streamline operations, aggregate data, and build next-generation digital products that make a difference—today.

  • Min project size
    $50,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Zagreb, Croatia
  • Year founded
    Founded 2014
  • Languages
  • Timezones

3 Languages that we service

  • English
  • German
  • Croatian

6 Timezones that we service

CET
Central European Time (CET)
CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)
EET
Eastern European Time (EET)
GMT
Greenwich Mean Time (GMT)
UTC
Universal Coordinated Time (UTC)

2 Locations

  • Zagreb , Croatia
  • Split , Croatia

No have been added yet...

    Pricing Snapshot

    Min. project size $50,000+
    Avg. hourly rate $50 - $99 /hr
    Rating for cost 4.6 /5

    What Clients Have Said

    Notch is praised for its competitive pricing and value for cost, with clients highlighting budget alignment and effective resource allocation. Specific project costs were not disclosed, but clients noted satisfaction with deliverables, communication, and project management, emphasizing the overall cost-effectiveness of their services.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $200,000 - $999,999 based on 12 reviews
    < $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

    Select a service to see pricing information

    Notch Review Insights

    Overall Review Rating

    4.9
    • Quality 4.9
    • Schedule 4.9
    • Cost 4.6
    • Willing to Refer 4.9

    Top Mentions

    Review Highlights

    • Strong Technical Expertise

      Notch demonstrates strong technical expertise, particularly in AI/ML, Java development, and UI/UX design. Clients noted their ability to quickly understand complex systems and provide innovative solutions. Their knowledge significantly improved project outcomes, exceeding client expectations.

    • No Significant Improvement Areas

      Clients generally do not highlight significant areas for improvement for Notch, indicating overall satisfaction with their services. This suggests that Notch consistently meets or exceeds client expectations across various projects.

    • Commitment to Client Success

      Notch shows a strong commitment to client success, as evidenced by their dedication to understanding client needs and providing tailored solutions. This commitment results in high client satisfaction and successful project outcomes.

    • Cultural and Value Alignment

      Clients choose Notch for their cultural fit and alignment of values, which enhance collaboration and project success. This alignment helps build strong, long-term partnerships with clients who value shared goals and ethics.

    • Effective Project Management

      Notch is praised for effective project management, delivering projects on time despite challenges. Their proactive approach, structured processes, and responsiveness to client needs ensure smooth project execution and client satisfaction.

    Notch Reviews

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    Project cost

    Software Dev for R&D Company

    • Custom Software Development
    • Less than $10,000
    • Feb. 2020 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "Their technical knowledge, flexibility, work ethic, and culture are impressive."

    Jun 15, 2020
    CTO, R&D Company
    Anonymous
    Verified
    • Information technology
    • Zagreb, Croatia
    • 51-200 Employees
    • Online Review
    • Verified

    AGENCY04 is providing software development services on a verification project for an R&D company. They're responsible for development, architecture, technical product steering, and integration support.

    Custom Software Dev for Educational Technology Company

    • Custom Software Development
    • $10,000 to $49,999
    • Jan. - June 2020
    5.0
    Quality
    4.5
    Schedule
    5.0
    Cost
    3.5
    Willing to Refer
    5.0

    "The developers from the agency are very adaptive."

    Jun 12, 2020
    CIO, Educational Technology Company
    Anonymous
    Verified
    • Education
    • Zagreb, Croatia
    • 51-200 Employees
    • Online Review
    • Verified

    AGENCY04 supported the development of a content contributor platform by augmenting internal resources. This involved front-and backend development.

    Conference App for Startup

    • Mobile App Development
    • $200,000 to $999,999
    • Jan. 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "(We) can’t imagine a better partner in developing such a complex and powerful product."

    Jun 10, 2020
    VP Growth, Connected Devices
    Matej Zelić
    Verified
    • Other industries
    • Zagreb, Croatia
    • 1-10 Employees
    • Online Review
    • Verified

    A growth startup hired AGENCY04 to assist with developing a conference mobile app for iOS and Android. It needed to match users based on mutual interest and allow organizers to act on realtime congestion data.

    E-Commerce Solution for IT Services Company

    • E-Commerce Development
    • $1,000,000 to $9,999,999
    • July 2019 - July 2020
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "The flexibility of the management was much appreciated."

    Jun 3, 2020
    ECommerce project manager, ECLA Informatique SA
    Nicolas Binnendijk
    Verified
    • Information technology
    • Lausanne, Switzerland
    • 1,001-5,000 Employees
    • Online Review
    • Verified

    AGENCY04 provided e-commerce development. Their team augmented the client's staff. 

    Software Dev for Electrical Engineering Company

    • Custom Software Development
    • $200,000 to $999,999
    • Nov. 2017 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “They’re eager to learn from us and solve our issues creatively.”

    Jan 9, 2019
    Head of Custom Software Development, Končar
    Tonci Kalina
    Verified
    • Manufacturing
    • Zagreb, Croatia
    • 51-200 Employees
    • Phone Interview
    • Verified

    AG04 was hired to develop two software programs from scratch.

    Dedicated Dev for Continuous Delivery Software Firm

    • Web Development
    • Confidential
    • Jan. 2014 - Ongoing
    4.5
    Quality
    4.5
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They’re committed, knowledgeable, and capable of managing an IT team."

    May 11, 2018
    VP of Product Development, XebiaLabs
    Andreas Prins
    Verified
    • Other industries
    • Burlington, Massachusetts
    • 51-200 Employees
    • Phone Interview
    • Verified

    AG04 participates in the development of complex products, including a software deployment tool. They use Angular, React, Java, and Scala to build the products’ core engines and features.

    Development Staff Augmentation for Life Sciences Software Co

    • API Development IT Staff Augmentation Other Application Development
    • Confidential
    • July 2025 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "Notch stayed engaged throughout the engagement."

    Dec 17, 2025
    VP Product Development, Regulatory, ArisGlobal LLC
    Zeljko Bak
    • Software
    • Boston, Massachusetts
    • 1,001-5,000 Employees
    • Online Review

    Notch has augmented the product development team of a life sciences software company. The project's goal is to accelerate the client's roadmap for their regulatory SaaS product.

    API Development for Observability Company

    • API Development Custom Software Development UX/UI Design
    • $200,000 to $999,999
    • Jan. 2022 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They always deliver on time."

    Jul 5, 2024
    CEO, StackState
    Andreas Prins
    Verified
    • Information technology
    • Hilversum, Netherlands
    • 11-50 Employees
    • Online Review
    • Verified

    Notch has been hired by an observability company to assist in developing their platform. The team's tasks have included contributing to UI building, frontend development, and integrations.

    Custom Web Solution for Global Construction Tech Group

    • Web Design
    • $200,000 to $999,999
    • Oct. 2018 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "All challenges our projects faced were solved together quickly!"

    Mar 26, 2021
    Product Owner, Global Construction Tech Group
    Anonymous
    Verified
    • Other industries
    • Vienna, Austria
    • 10,001+ Employees
    • Online Review
    • Verified

    Agency 04 developed a custom web solution in Java and Angular for a global construction tech group. The team created an application that aggregates and visualizes data in real-time from different ERP systems.

    Showing 11-19 of 19 Reviews

    Our Story

    We are a team of over 170 professionals based in Central Europe, united by a passion for solving complex business challenges and creating exceptional digital products. Here, engineers, designers, analysts, and consultants thrive together, forming strong client relationships and truly living Notch’s values every day—from courage and collaboration to human respect. That’s how we delivered over 300 projects to clients worldwide and earned recognition as a top global software and AI strategy company

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    18
    Overall Review Rating
    4.9
    Source
    Clutch
    Last Updated
    December 17, 2025

    Business Entity

    Business Entity Name AG04 Innovative Solutions d.o.o.
    Source Republika Hrvatska Sudski Registar
    Jurisdiction of Formation Croatia
    Date of Formation October 2, 2014
    Status Active
    Last Updated July 21, 2022
    ID 080934686

    Credit Report Results

    International Credit Risk Assessment Very Low Risk
    Source Creditsafe
    Last Updated January 1, 2022
    Learn More About The Clutch Verification Process

    Locations (2)

    Ul. Republike Austrije 33 ZagrebCroatia 10000

    101 - 150

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