Telecommunications
Power for nodes and switching centers, cooling, node upgrades and FTTH fiber network construction.
See solutions →
800+
sites and nodes under maintenance
12
states with operations
15+ years
of team experience
24/7
field support with in-house crews
Companies that trust us
Industries
We also serve: Industry · Banking · Healthcare · Retail · Transportation · Education
Services
Contracted separately or as an integrated solution for the same site.
01
UPS, generator sets, transfer switchgear and battery banks.
02
Rectifiers, inverters and converters for telecom and industry.
03
Solar and hybrid systems, cooling and technical rooms.
04
GPON network engineering, FTTH construction, node upgrades and civil works.
Why Sigma
Power, conversion, cooling and outside plant with a single point of responsibility.
Banking, telecommunications, industry and electrical substations.
Sigma staff, not subcontractors, with our own service centers.
Maintenance, spare parts and advice throughout the asset's life.
We visit your facility and size the solution before submitting a commercial offer.
A specialist will reply within 24 hours.