Sepa Mühendislik

SEPA Engineering Consulting, founded in 1990, is an engineering and consulting firm delivering water, energy, infrastructure and planning projects in Türkiye and abroad. In 2026 we renewed its logo, built its corporate identity and designed its company catalogue in Turkish and English.

The logo of a 35-year-old engineering firm had to fit today's sizes and media without losing its recognition.

The firm's work is multidisciplinary: water resources, energy, planning and infrastructure all run under one roof. The logo had to gather these four fields in a single mark, and the identity had to speak the same language from the business card to the 76-page catalogue.

The goal was to bring the firm's name and its four fields of work together in a single geometry.

We prepared six separate directions for the presentation. In the chosen one the emblem is built from two interlocking letters S and opens in four directions on a plus-shaped axis: Su (water), Enerji (energy), Planlama (planning), Altyapı (infrastructure). The initials of the four directions spell the firm's name. The white axis at the centre refers to the coordinate system of a technical drawing.

The emblem consists of four arrows: the blue arrows carry water and infrastructure, the green arrows energy and planning.

The name SEPA is set in wide, plain capitals, with the line Engineering & Consulting beneath it. Vertical and horizontal layouts were prepared, in Turkish and English versions. In the corporate identity the emblem is enlarged and used as a pale trace: on the pocket folder, the business card, the letterhead and the envelope. The identity also covers desk and wall calendars, greeting cards, a memo cube box, a mug and a pen. The 76-page company catalogue opens with a green cover; services are coded by letter and number under six headings, and each section starts with its own opening page.