SenDev GmbH
SenDev GmbH is a 6-person German software consultancy, founded 1999 and based in Kamen, NRW, that delivers custom Microsoft .NET development, DevExpress XAF enterprise applications, and legacy VB6/Access/VBA-to-.NET migration services to mid-market and enterprise clients worldwide via direct, sales-led remote engagements.
- Company typePrivate
- Founded1999
- HeadquartersKamen, Germany
- Headcount1–10
- GTM typeB2B
- OfferingServices
What SenDev GmbH does
SenDev GmbH is a privately held German software development consultancy headquartered in Kamen, North Rhine-Westphalia, founded in 1999 and operating with approximately 6 employees under sole legal representative and managing director Sergej Derjabkin. The firm sells custom software development services rather than packaged software products, organized around the Microsoft .NET ecosystem and extending across web (Blazor, ASP.NET Core), Windows desktop (WinForms, WPF), cross-platform mobile and desktop (.NET MAUI, Uno Platform, Avalonia UI), and Azure cloud integration. Its most distinctive service lines are legacy system migration — porting VB6, Microsoft Access, and VBA applications to modern .NET and C# with database moves to SQL Server or PostgreSQL — and DevExpress XAF-based enterprise business application development, supported by Entity Framework/XPO data access and Clean Code practices.
Revenue is generated exclusively through professional services engagements on a quote-based, project-by-project pricing model, with engagements occasionally structured as multi-year contracts and free initial consultations offered with a 24-hour response time. The go-to-market is sales-led and direct: prospects are reached via phone or email, followed by a 30-minute discovery call and a detailed proposal with scope, timeline, and pricing. No self-serve, product-led, channel-partner, or marketplace motions are described. The company positions its primary customer segment as mid-market and enterprise organizations running outdated VB6, Access, or VBA applications that require modernization, with a secondary segment of organizations seeking general custom .NET development; segmentation is described as horizontal and the firm claims the ability to serve clients globally via remote collaboration despite its domestic DACH-region footprint.
The business is bootstrapped with no disclosed funding rounds, venture capital, private equity, or institutional investor involvement, and no parent company, subsidiaries, M&A activity, or patents appear in the record. Public-facing artifacts are limited: the bilingual (German/English) website is hosted on GitHub Pages, with no mobile applications, public APIs, SDKs, certifications, awards, or social channels identified. The firm emphasizes sustained, long-tenured expertise — citing 25+ years in software development and 20+ years of specialized .NET work — as the primary credential supporting client acquisition.
SenDev GmbH firmographics
Firmographics- Name
- SenDev GmbH
- Legal name
- SenDev GmbH
- Website
- https://sendev.de
- Company type
- Private
- Founded year
- 1999
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SenDev GmbH is a 6-person German software consultancy, founded 1999 and based in Kamen, NRW, that delivers custom Microsoft .NET development, DevExpress XAF enterprise applications, and legacy VB6/Access/VBA-to-.NET migration services to mid-market and enterprise clients worldwide via direct, sales-led remote engagements.
- Ownership category
- akta.pro rank
SenDev GmbH industry classification
Industry- Product category
- Custom Software Development Services
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Process & Case Management Low-Code Platforms (HDAEAKAE)
- akta.pro secondary industry
- Digital Process Automation (DPA) & Orchestration Suites (HDAEAHAF)
Keywords
Where SenDev GmbH is headquartered
LocationHeadquarters
- HQ city
- Kamen
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
SenDev GmbH business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Custom Software Development Services: Professional services engagements for custom software development, including new application development, legacy modernization, and migration projects. engagements include requirements analysis, development, testing, deployment, and ongoing support.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom Project-Based Pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels1 record
SenDev GmbH product offering
Product offeringCore offering
SenDev GmbH is a professional software development consultancy delivering custom .NET application development, legacy system migration (VB6, Access, VBA to modern .NET/C#), DevExpress XAF enterprise business applications, and cross-platform mobile/desktop solutions for mid-market and enterprise clients. Engagements cover requirements analysis, development, testing, deployment, and ongoing support using Microsoft technologies and Clean Code principles.
Product overview
SenDev GmbH is a professional software development consultancy, not a product company. They offer custom software development services rather than packaged software products. Their service portfolio includes: custom software development using Microsoft technologies (.NET, DevExpress, Blazor, ASP.NET Core), legacy system migration (VB6/Access/VBA to modern .NET/C#), DevExpress XAF enterprise solutions, cross-platform development (.NET MAUI, Uno Platform, Avalonia), web application development (Blazor, ASP.NET Core), desktop application development (WinForms, WPF), and Azure cloud integration. All services follow Clean Code principles and Best Practices.
Differentiator
Problem solved
Functional benefit
Products and services
- Custom Software Development Services
- Legacy System Migration Services
Companies that use SenDev GmbH
Customer profileSegments2 records
Ideal customer profiles2 records
SenDev GmbH technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
SenDev GmbH partnerships and signals
Strategic signalScale indicators3 records
Recent moves4 records
Expansion highlights3 records
SenDev GmbH competitors and assessment
Company assessmentBroad incumbents
- Allgeier SE: German-headquartered IT services group offering custom software development, enterprise modernization, and Microsoft consulting. Operates at significantly larger scale across multiple European markets.
- T-Systems International: Deutsche Telekom subsidiary providing large-scale IT services including custom software, cloud, and SAP/Microsoft enterprise solutions. Comparable on enterprise custom development in DACH, with much broader portfolio.
- msg systems AG: Large German IT consultancy delivering custom enterprise software, legacy modernization, and industry-specific solutions. Comparable on .NET and Microsoft-stack custom development, but with much broader industry vertical coverage.
- Avanade: Joint venture between Accenture and Microsoft focused on Microsoft technology consulting and custom application development. Direct overlap on enterprise .NET, Azure, and Microsoft-stack engagements, but at vastly larger scale and broader service portfolio.
- Capgemini Engineering: Global IT services giant with extensive custom software development, enterprise application, and Microsoft-stack practices. Competes for the same enterprise modernization RFPs SenDev targets, but at global scale.
Direct peers
- Nagarro: Global digital engineering and custom software development consultancy with strong .NET, cloud, and enterprise modernization practices. Comparable custom-development-led model targeting enterprise transformation, though operating at much larger scale.
- codecentric AG: German IT consultancy specializing in Java and Microsoft .NET custom development, cloud, and DevOps. Closest like-for-like German competitor with similar boutique-to-mid-size profile and Microsoft-stack focus.
- Devbridge (Globant): Custom software development consultancy (now part of Globant) delivering Microsoft-stack enterprise applications, legacy modernization, and bespoke solutions. Similar custom-development-led model targeting enterprise digital transformation.
- Senacor Technologies: German IT consultancy focused on custom software development, legacy modernization, and digital transformation for large enterprises. Similar boutique-to-mid-size profile with comparable Microsoft/.NET custom development services.
Regional players
- GFT Technologies SE: German IT consultancy specializing in digital transformation, custom software, and financial services technology. Comparable on European enterprise custom development with Microsoft and cloud stacks.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
SenDev GmbH social profiles
Digital presenceSenDev GmbH financial estimates
Financial estimateRevenue estimate
Valuation estimate
SenDev GmbH leadership team
Management profileNumber of profiles
Profiles1 record
SenDev GmbH funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SenDev GmbH M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SenDev GmbH
What does SenDev GmbH do?
SenDev GmbH is a professional software development consultancy delivering custom .NET application development, legacy system migration (VB6, Access, VBA to modern .NET/C#), DevExpress XAF enterprise business applications, and cross-platform mobile/desktop solutions for mid-market and enterprise clients. Engagements cover requirements analysis, development, testing, deployment, and ongoing support using Microsoft technologies and Clean Code principles.
Is SenDev GmbH a public or private company?
SenDev GmbH is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SenDev GmbH founded?
SenDev GmbH was founded in 1999. It employs 1 to 10 people.
Where is SenDev GmbH based?
SenDev GmbH is headquartered in Kamen, Germany, in the Europe region.
How does SenDev GmbH make money?
One revenue line is on record: custom Software Development Services.
Who are SenDev GmbH's main competitors?
Broad incumbents on record are Allgeier SE, T-Systems International, msg systems AG, Avanade and Capgemini Engineering. Direct peers are Nagarro, codecentric AG, Devbridge (Globant) and Senacor Technologies. GFT Technologies SE is listed as a regional player.
Does SenDev GmbH have an API?
No public API is recorded for SenDev GmbH.
What industry is SenDev GmbH in?
SenDev GmbH's product category is Custom Software Development Services. Its primary akta.pro industry code is HDAEAKAE, Process & Case Management Low-Code Platforms, with a secondary code of HDAEAHAF, Digital Process Automation (DPA) & Orchestration Suites. Its NAICS code is 541511 and its SIC code is 7371.