Contracting, Energy, Real Estate Development and Agriculture · 2026
Project-based engagementERN Holding — three company websites renewed in one MadeByCat CMS programme, with Batıyakası delivered as a separate project
ERN Holding
Industry
Contracting, Energy, Real Estate Development and Agriculture
Sector
Contracting, Energy, Real Estate Development and Agriculture
Engagement
Project-based engagement
Year
2026
Short answer
MadeByCat ran the UX/UI work and website renewal for ERN Holding, ERN Taahhüt and ERN Enerji as a single program: three sites delivered simultaneously on MadeByCat CMS under one program and project management, and launched together. Batıyakası followed later as a separate project. The sites went live in 2026.
Client context
01ERN Holding brings together companies operating across contracting, energy, real estate development and agriculture.
Business challenge
02The ERN Holding, ERN Taahhüt and ERN Enerji websites were to be renewed at the same time, as one program rather than three separate projects.
MadeByCat role
03UX/UI work and website renewal for ERN Holding, ERN Taahhüt and ERN Enerji, delivered on MadeByCat CMS under one program and project management; Batıyakası delivered later as a separate project.
One program, three simultaneous launches
04ERN Holding, ERN Taahhüt and ERN Enerji were not treated as three separate jobs. They ran in parallel under one program and project management, with shared decisions taken once, and went live together.
UX/UI across group and company level
05The UX/UI work for the ERN Holding, ERN Taahhüt and ERN Enerji websites was carried out by MadeByCat, within the same program as the site renewals.
MadeByCat CMS
06All three renewed sites were delivered on MadeByCat CMS, as part of the same program.
Batıyakası — a separate follow-on project
07Batıyakası was taken on later as its own project and brought to life separately from the three-site program.
Solution
08Renewed ERN Holding, ERN Taahhüt and ERN Enerji websites launched together on MadeByCat CMS, with Batıyakası delivered later as a separate project.
Evidence & outcomes
ERN Holding, ERN Taahhüt and ERN Enerji websites delivered simultaneously and launched together under one program (MadeByCat project record).
Qualitative · MadeByCat project record
Batıyakası delivered later as a separate project (MadeByCat project record).
Qualitative · MadeByCat project record
ERN Enerji is a live property structured around energy operations, power plants, sustainability, careers and news.
Qualitative · ERN Enerji (official website)
Services & capabilities
Capabilities: Group Web Ecosystem · Multi-brand UX
Evidence & sources
- ERN Holding (official website)Client official
- ERN Taahhüt (official website)Client official
- ERN Enerji (official website)Client official
- Batıyakası (official website)Client official