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Building custom enterprise-grade digital products

In October 2022 Agency 04 has rebranded to Notch.

We build custom enterprise-grade digital products that support businesses to effectively accelerate their mission-critical goals, and unlock new business opportunities enabled by technology.

Our services: product research and design, software development and architecture, custom digital products, mobile app development, application modernization, tech consulting, business analysis, quality engineering, project management.

  • 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 4.7 /5

    What Clients Have Said

    Notch is perceived as offering good value for cost, with projects typically involving teams of 2-10 employees. Specific costs mentioned include a €400,000 investment for a partnership and a $350,000 investment for ongoing projects, indicating flexibility and responsiveness to client needs.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $200,000 - $999,999 based on 11 reviews
    < $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000
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    Notch Review Insights

    Overall Review Rating

    4.9
    • Quality 4.9
    • Schedule 4.9
    • Cost 4.7
    • Willing to Refer 4.9

    Top Mentions

    Review Highlights

    • Areas for Improvement in Initial Planning

      While generally well-received, some feedback suggests that Notch could enhance initial project planning to avoid scope changes. Improved upfront planning could mitigate budget overruns and streamline project execution.

    • Successful Long-term Collaborations

      Clients appreciate Notch's long-term involvement in projects, noting their ability to integrate seamlessly with internal teams and contribute to ongoing product development and improvement.

    • Skilled Talent Acquisition and Training

      Notch's strategic location near universities allows them to recruit and train highly skilled talent. This approach ensures ongoing innovation and the ability to meet complex client demands effectively.

    • Strong Project Management Skills

      Clients praise Notch for their proactive project management, structured processes, and comprehensive documentation. Their ability to anticipate client needs and ensure timely delivery is consistently highlighted as a key strength.

    • Proficiency in AI and Data Solutions

      Notch excels in delivering AI-driven solutions, utilizing predictive analytics and NLP for complex data integration tasks. Clients appreciate their ability to automate processes and improve data insights, resulting in successful pilot projects and board approvals.

    • Commitment to Client Success

      Clients value Notch's dedication to project success, noting their commitment to understanding client needs and delivering high-quality solutions. This dedication enhances client satisfaction and project outcomes.

    Notch Reviews

    Submit A Review
    All Filters

    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."

    VP Growth, Connected Devices
    Matej Zelić
    • IT Services
    • 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."

    ECommerce project manager, ECLA Informatique SA
    Nicolas Binnendijk
    • 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.”

    Head of Custom Software Development, Končar
    Tonci Kalina
    • 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."

    VP of Product Development, XebiaLabs
    Andreas Prins
    • Software
    • 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.

    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."

    CEO, StackState
    Andreas Prins
    • 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!"

    Product Owner, Global Construction Tech Group
    Anonymous
    • Construction
    • 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.

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

    Learn More
    Verified Client Reviews
    16
    Overall Review Rating
    4.9
    Source
    Clutch
    Last Updated
    April 21, 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)

    101 - 150

    Contact Notch

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