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Home Software Developers C++ Germany Frankfurt am Main

Top C++ Developers in Frankfurt am Main

Ratings Updated: April 3, 2026
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1 Leaders 2 Contenders

3 Companies

Country: Germany
City: Frankfurt am Main
Programming & Scripting: C++

List of the Top Frankfurt am Main C++ Development Companies

  • L-One Systems GmbH Logotype

    5.0 11 reviews
    $10,000+
    $25 - $49 / hr
    10 - 49
    Darmstadt, Germany

    Services provided

    25% Custom Software Development
    20% AI Consulting
    20% AI Development +3
    20% Web Development
    10% IT Staff Augmentation
    5% Mobile App Development

    Focus Areas

    10% C++
    15% JavaScript
    15% PHP +6
    15% Python
    10% ASP.NET
    10% C#
    10% Kotlin
    10% Typescript
    5% Swift

    L-One Systems GmbH is a bespoke software development company excelling in tailored software creation, full-stack development, and end-to-end software engineering. Reviews are overwhelmingly positive, with 100% of clients highlighting their technical expertise, agile project management, and responsiveness. Their multicultural team and commitment to quality set them apart in delivering innovative and scalable solutions.

    See all 11 projects

    Reviews mention Great project management

    Clients consistently highlight L-One Systems GmbH's exceptional project management skills. One review noted their 'very professional project management approach' which facilitated a partnership that the client highly recommends. Additionally, the company was praised for delivering items on time and effectively responding to client needs, contributing to faster development speeds and a strong cultural fit within the team.
    • DevOps Resources for AI Content Tools Company
      5.0 Jan 20, 2024

      They have a very professional project management approach and a partnership I can recommend. The primary form of communication with L-One Systems GmbH was through Virtual Meetings and Email or Messaging Apps.

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    • Custom Software Development for NLP Services Provider
      5.0 May 21, 2024

      They delivered everything on time. The project management was on our side. Virtual meetings and communication through email or messaging apps were effective.

      Read Full Review
    • AWS Migration, AI & Feature Development for SaaS Company
      5.0 Jan 13, 2025

      L-One's project management was exemplary, led by a great project leader who ensured clear communication and consistent progress through weekly jour fixes. All deliverables were completed on time, meeting or exceeding expectations. They were highly responsive to needs, proactively addressing feedback, and adapting solutions to align with aicorite®'s strategic goals. Their organized and efficient approach created a seamless collaboration.

      Read Full Review
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    Industry Experience

    L-One Systems GmbH has demonstrated expertise across various industries, including Software, Telecommunications, Consulting, Information Technology, Agriculture, and Other Industries. They are consistently praised for their strong project management, technical competence, and ability to provide tailored solutions. Clients in the Software and Telecommunications sectors highlight their effective communication and agile project management, while those in Consulting and Agriculture commend their collaboration and innovative approaches. Overall, the sentiment across all industries is highly positive, marking L-One Systems GmbH as a strong partner for projects in these fields.

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    Select Industry to see insights

    Other Industry Consulting Telecommunications Software Information technology Agriculture

    Average Project Cost Breakdown

    What Clients Have Said

    Clients frequently commend L-One Systems GmbH for their competitive pricing and overall value for money. Feedback highlights that their pricing fits within client budgets while providing substantial quality and expertise. For instance, one client noted the company's 'good value for cost,' while another emphasized a 'massive gain' from reduced operational costs. Overall, the sentiment reflects satisfaction with both affordability and the quality of deliverables, reinforcing L-One's reputation as a cost-effective service provider.
    Read All Reviews

    Review Rating from Clients

    5.0/5.0

    Quality

    4.8

    Schedule

    5.0

    Cost

    4.8

    Willing to Refer

    4.8

    Darmstadt-based clients highlight L-One Systems GmbH's expertise in software assessment, development, and project management across diverse projects like security solutions, NLP systems, and fintech platforms. They praise the team's dedication, timely delivery, and collaborative approach, emphasizing their strong local presence and cultural fit.
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  • RED Global Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    250 - 999
    Frankfurt am Main, Germany

    Services provided

    20% Custom Software Development
    20% Cloud Consulting & SI
    10% BI & Big Data Consulting & SI +5
    10% Compliance Consulting
    10% Cybersecurity
    10% Digital Engineering
    10% ERP Consulting and SI
    10% Web Design

    Focus Areas

    20% C++
    50% Python
    30% Java

    RED Global is a cloud consulting & SI company. The team is in London, England and Frankfurt am Main, Germany, and their services include cloud consulting & SI and Cybersecurity.

    Read more

    Frankfurt am Main, Germany

    Eschersheimer Landstrasse 14
    Frankfurt am Main, Germany 60322

    21 - 30

    +49 (69) 9517 9060

    See All Locations (3)
    View Profile
  • Emerline Logotype

    4.9 25 reviews
    $25,000+
    $50 - $99 / hr
    250 - 999
    Heidelberg, Germany

    Services provided

    25% Custom Software Development
    20% AI Development
    15% Mobile App Development +7
    10% Cloud Consulting & SI
    5% AI Agents
    5% AI Consulting
    5% BI & Big Data Consulting & SI
    5% E-Commerce Development
    5% Generative AI
    5% Low/No Code Development

    Focus Areas

    10% C++
    30% JavaScript
    30% Python +2
    20% Java
    10% ASP.NET

    Emerline specializes in tailored and full-stack software development, consistently praised for its project management and professional culture. Across multiple reviews, clients commend their responsiveness, timely delivery, and transparent communication. Approximately 90% of reviewers highlight their expertise and value for cost, with no significant areas for improvement noted. Emerline is widely recognized as a reliable partner in managed software development projects.

    See all 25 projects

    Industry Experience

    Emerline has demonstrated expertise across various industries, including Software, IT Services, Healthcare, and Financial Services. Clients commend their strong project management, timely delivery, and ability to deliver high-quality technical solutions. In the Software and IT Services sectors, feedback highlights their agility and responsiveness. The Healthcare and Financial Services reviews showcase their capacity for intricate project requirements and adherence to budget. Overall, Emerline is well-suited for tech-driven projects in these sectors, with a positive reputation for collaboration and transparency.

    Read All Reviews

    Select Industry to see insights

    Software Chemicals & Biotechnology Social Networking IT Services Arts, entertainment & music Healthcare Manufacturing Engineering Financial services Legal

    Average Project Cost Breakdown

    $50,000 to $199,999 (2) $10,000 to $49,000 (1) $200,000 to $999,999 (1) $1,000,000 to $9,999,999 (1)

    What Clients Have Said

    Emerline is frequently recognized for delivering high-quality services at competitive prices, providing good value for money. Clients consistently noted that their budgets were generally respected, and in instances of potential overruns, discussions were held before adjustments were made. For example, one client emphasized that Emerline's pricing fit their budget and highlighted the company's transparency in costs. Overall, feedback indicates a strong sentiment of satisfaction regarding the cost-effectiveness and professionalism of Emerline's services.
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    More responsive than most other service providers

    Emerline is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
    1 of 1 Frankfurt am Main-based review is 5 stars
    Unknown avg. project cost for Custom Software Development services in Frankfurt am Main

    Custom Software Development project highlight

    Front- & Backend Dev & QA for MedTech Company

    5.0 — Emerline provides front- and backend development and QA services for a medtech company. The team works on transferring the client's existing desktop solution to the web.  Read more
    Read Similar Reviews
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1 L-One Systems GmbH

List of the Top 1 Frankfurt am Main C++ Development Companies

  1. L-One Systems GmbH Logotype

    L-One Systems GmbH

    $10,000+
    $25 - $49 / hr
    10 - 49
    Darmstadt, Germany

    Ability to deliver

    26.4/40.0
    17.8/20 Reviews
    2.7/10 Clients & Experience
    6/10 Market Presence

    Service focus

    25% Custom Software Development
    10% C++
    75% Other
    View Profile Visit Website
  2. RED Global Logotype

    RED Global

    Undisclosed
    Undisclosed
    250 - 999
    Frankfurt am Main, Germany

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    20% Custom Software Development
    20% C++
    80% Other
    View Profile Visit Website
  3. Emerline Logotype

    Emerline

    $25,000+
    $50 - $99 / hr
    250 - 999
    Heidelberg, Germany

    Ability to deliver

    37.4/40.0
    18/20 Reviews
    9.7/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    25% Custom Software Development
    10% C++
    75% Other
    View Profile Visit Website

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