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Delivering quality from a project's get-go

Our mission as a software company is creating products employing proven industry-leading technologies and maintaining high quality from a project’s get-go. In our humble opinion, there is nothing impossible, some ideas are just harder to pull off. We strive to do that in the most eye-appealing way. We also like our relationships constructive, long-term, mutually beneficial – with our customers as well as with our employees.

  • Min project size
    $5,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    10 - 49
  • Locations
    Sofia, Bulgaria
  • Year founded
    Founded 2014
  • Languages

2 Languages that we service

  • German
  • English

1 Locations

  • Sofia , Bulgaria

Select Focus Area
Application Platforms
Azure Platform
25%
Linux server
25%
Amazon Application Development Framework
10%
Windows server
10%
Other app platform
5%
AI Technologies & Models
Open AI GPT-3
60%
Anthropic
30%
Hugging Face Bloom
10%
CMS Focus
E-commerce Systems
Other ecommerce systems
10%
Frameworks and CMS
.NET
22%
Spring MVC
18%
Zend PHP
12%
Mobile Focus
Enterprise Mobile App Development
100%
Programming & Scripting
C#
15%
Java
15%
AJAX
10%
PHP
10%
SQL
10%
Python
5%
Typescript
5%
Industries
Retail
25%
eCommerce
25%
Business services
20%
Medical
15%
Advertising & marketing
10%
Financial services
5%
Clients
Small Business (<$10M)
60%
Midmarket ($10M - $1B)
40%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.9 /5

What Clients Have Said

Key Development offers good value for cost, with clients noting that their pricing fits budgets. They excel in project management and timely delivery, enhancing client satisfaction. Specific project costs weren't disclosed, but they consistently demonstrate effective communication and technical expertise.

This summary is based on verified Clutch reviews.

Most Common Project Size

< $10,000 based on 3 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Key Development Review Insights

Overall Review Rating

4.9
  • Quality 4.9
  • Schedule 4.8
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Strong Technical Expertise

    Clients consistently praise Key Development for their deep technical knowledge and problem-solving skills. Their ability to understand and address complex technical issues has been a significant factor in the success of various projects.

  • No Major Areas for Improvement

    Most clients did not identify significant areas for improvement, indicating overall satisfaction with Key Development's services. A few noted the need for continuous learning to expand competencies, a standard in the tech field.

  • High Client Satisfaction

    Clients express high satisfaction with the outcomes of their projects, highlighting successful deliverables that meet or exceed expectations. This satisfaction is attributed to Key Development's professionalism and accuracy in execution.

  • Effective Project Management

    Key Development is noted for their effective project management, delivering tasks on time and maintaining clear communication. Clients appreciate their organized approach, often structured around sprints, which ensures timely delivery and adaptation to changes.

  • Responsive to Change Requests

    The team at Key Development is responsive to change requests and adapts plans accordingly. Clients appreciate their flexibility and quick implementation of changes, which ensures project alignment with evolving needs.

  • Detail-Oriented Approach

    Key Development's attention to detail is appreciated, though one client mentioned that detailed descriptions can be overwhelming at times. This suggests a need for balancing detail with brevity in communications.

Key Development Reviews

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Custom Software Development for Financial Products Firm

  • Custom Software Development IT Strategy Consulting Web Development
  • ASP.NET
    +1
  • Confidential
  • Apr. 2023 - Sep. 2024
4.5
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"All our needs and expectations were covered."

Nov 15, 2024
Financial Analyst, MoitePari
Ivan Stoykov
Verified
  • Financial services
  • Sofia, Bulgaria
  • 1-10 Employees
  • Online Review
  • Verified

Key Development developed a web app for a financial products firm. The team was responsible for implementing open banking features for users to consolidate their bank accounts.

Custom Software Development for Online Shop

  • Custom Software Development Web Development
  • Linux server
    +2
  • Confidential
  • Jan. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Key Development's speed and reliability impressed us."

Nov 4, 2024
CTO, Akpool GmbH
Karsten Siesing
Verified
  • Other industries
  • Berlin, Germany
  • 11-50 Employees
  • Online Review
  • Verified

Key Development has developed a subscription website for an online shop. The team has created a web app with a subscriber system, payment methods, and an API connection and also provided maintenance.

Website Migration for Website Development Agency

  • Web Development
  • PHP
    +1
  • Less than $10,000
  • November 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They did a perfect job on time and had very good communication."

Nov 18, 2024
CEO, Automoto
Filip Filipov
Verified
  • Other industries
  • Bulgaria
  • 1-10 Employees
  • Online Review
  • Verified

Key Development migrated the website of a website development agency. The team also created development environments.

Custom Software Development for IT Outsourcing Co

  • Custom Software Development DevOps Managed Services Web Development
  • Linux server
    +3
  • Confidential
  • May 2019 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"Key Development's competence and excellent communication impressed us."

Nov 8, 2024
CEO, Evrista LTD
Marian Milanov
Verified
  • Information technology
  • Sofia, Bulgaria
  • 11-50 Employees
  • Online Review
  • Verified

Key Development has built custom websites for an IT outsourcing company. The team has migrated a ticketing system, various websites, and environments and provided software consulting for application software.

Website Design & Dev for Insurance Broker

  • Mobile App Development Web Design Web Development
  • WordPress CMS
    +1
  • Less than $10,000
  • Jan. - Sep. 2022
4.5
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"We are very pleased to work with them."

Oct 13, 2024
Owner & General Manager, MVM-11
Boyan Angelov
Verified
  • Insurance
  • Bulgaria
  • 1-10 Employees
  • Online Review
  • Verified

Key Development developed a website for an insurance broker. They were tasked with creating a modern-looking site with high Google search rankings, fast load times, and integrated contact and insurance forms.

E-Commerce Development for Medical Devices Company

  • Custom Software Development E-Commerce Development Web Development
  • Angular
    +3
  • $200,000 to $999,999
  • Apr. 2015 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"They have a brilliant technical understanding and deep technical knowledge."

Oct 9, 2024
Managing Director, health.On Ventures GmbH
Dr. Daniel Grätz
Verified
  • Other industries
  • Germany
  • 11-50 Employees
  • Online Review
  • Verified

Key Development provides e-commerce development services for a medical devices company. The team has set up online shops, integrated data sources, fixed bugs, and implemented new shop functions.

Showing 1-7 of 7 Reviews

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

Learn More
Verified Client Reviews
7
Overall Review Rating
4.9
Source
Clutch
Last Updated
July 18, 2025

Business Entity

Business Entity Name Key Development OOD (КЕЙ ДИВЕЛОПМЪНТ)
Source EPZEU
Jurisdiction of Formation Bulgaria
Date of Formation November 5, 2014
Status Active
Last Updated November 20, 2024
ID 203409100

Credit Report Results

International Credit Risk Assessment Very Low Risk
Source Creditsafe
Last Updated November 29, 2024
Learn More About The Clutch Verification Process

Locations (1)

bul. "Slivnitsa" 141-143 SofiaBulgaria 1276

6 - 9

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