Aurelius divested its protection‑relay unit, SEG Electronics, to Spanish powerhouse Arteche Group. SEG, once part of Nasdaq‑listed Woodward, had been spun off in 2020 and grew roughly 15% annually under Aurelius. The move follows six years of ownership and signals a shift in the medium‑voltage market for buyers seeking advanced grid protection in new.

SEG Electronics supplies protection relays to more than 300 customers in over 50 countries, positioning it as a niche leader in grid automation. Under Aurelius, the business achieved an adjusted EBITDA margin above 20%, a benchmark that attracted Arteche, which seeks to broaden its product portfolio in electrification services for global power infrastructure solutions.

Arteche, headquartered in Mungia, Spain, brings a global sales network that spans Europe, Asia, and the Americas. The acquisition expands its footprint in the mid‑voltage segment, allowing it to offer integrated protection solutions alongside its existing transformer and switchgear lines to enhance grid reliability for utilities worldwide across.

For investors, the sale underscores a consolidation trend in power‑grid equipment, as larger firms absorb specialized players to capture higher margins. Aurelius, which previously spun off several niche units, now focuses on core oil and gas assets. Arteche’s purchase strengthens its competitive stance amid rising demand for smart grid technologies across the European market today.