Electrical & Critical-Power Infrastructure · Data Centers
Built for whatcan’t go down.
TESIM Electric provides electrical construction and power-infrastructure installation for data centers and commercial facilities — power distribution, backup power, raceway and cabling infrastructure, equipment power, grounding, and electrical fit-outs and expansions.
Who We Are
TESIM Electric provides electrical construction and power-infrastructure installation for data centers and commercial facilities. Our focus includes power distribution, backup and critical power, raceway and cabling infrastructure, equipment power, grounding and bonding, and electrical fit-outs and expansions. We’re a licensed electrical contractor based in the Austin area (Lakeway, Texas) and working across all of Texas — self-performing the installation scope with our own crews, built to the National Electrical Code, and partnering for medium-voltage and utility-class work. TESIM Electric is a d/b/a of TESIM LLC.
By the Numbers
Licensed, local, and hands-on
Real numbers, not marketing. Every job is permitted, inspected, and self-performed by our own crews.
Markets
Where this work matters most.
Data centers and mission-critical facilities are the market we’re building our specialization around, on a foundation of commercial electrical construction we’ve self-performed for 13+ years.
All Markets
Services
What we install.
Five scopes, in the order a power system gets built — from the incoming distribution to the fit-out work that expands it later.
Full Scope DetailPower Distribution
Installing the distribution equipment that carries power through the building.
- Switchgear & switchboard installation
- Transformers
- Panelboards
- Feeders & branch power
- Busway / bus duct
- Distribution equipment installation
- Equipment connections & terminations
Backup & Critical Power
Installing the standby and emergency power infrastructure that carries the load.
- Generator installation
- Automatic transfer switches (ATS)
- Manual transfer switches
- Generator feeders & connections
- Emergency & standby power distribution
- UPS electrical infrastructure & installation
- Paralleling gear installation
- Maintenance bypass equipment
- Battery-system electrical infrastructure
Electrical Infrastructure
The conduit, tray, and cable that everything else depends on.
- EMT & rigid conduit / raceway
- Cable tray
- Feeder installation
- Wire & cable pulls
- Underground electrical infrastructure
- Equipment raceways
- Supports
- Electrical connections & terminations
Grounding & Bonding
Building grounding and bonding systems, installed to code.
- Building grounding systems
- Equipment grounding
- Grounding electrode systems
- Bonding
- Grounding infrastructure for electrical & data-center equipment
Data Center & Commercial Fit-Outs / Expansions
Power added, expanded, and upgraded inside existing facilities.
- Equipment power
- Power infrastructure supporting white space
- Electrical feeds for racks, PDUs & RPPs
- Distribution additions
- Capacity expansions
- Electrical upgrades
- Redundant power-path infrastructure
- Electrical renovation & expansion work
Who We Work With
Built to work as your electrical partner.
Most of our work comes through general contractors and larger electrical contractors who need a licensed, self-performing partner to take scope.
General contractors
Hand us the electrical scope and deal with one self-performing subcontractor.
Electrical contractors
Looking for a qualified partner to take scope, add crews, or cover Texas geography.
Data-center developers
Electrical and critical-power infrastructure on ground-up and expansion builds.
Data-center owners & operators
Capacity additions, upgrades, and power work inside live facilities.
Commercial developers
Full electrical scope on commercial construction across Texas.
Facility managers
Distribution additions, equipment power, and electrical upgrades on running sites.
Construction managers
A licensed, insured, bondable electrical sub that coordinates and shows up.
Why TESIM
Technical, accountable, straight with you.
We self-perform the installation
Our own licensed electricians set the gear, run the pipe, pull the wire, and land the terminations. We’re an electrical contractor — not a staffing agency or labor broker.
Current on the code
Every installation is built to the National Electrical Code and we stay current each cycle. On critical-power work that isn’t a formality — it’s the whole job.
Scaled to the project
Crews, insurance ($2M–$5M general liability, higher on request), and bonding scale to the job. No project is too large to size for.
Local & responsive
Based in Lakeway and working across all of Texas — close enough to walk the site, answer the phone, and coordinate directly with your team.
Straight about our scope. We install, terminate, and connect this equipment. We don’t design, engineer, commission, manufacture, or service it — that stays with the engineer of record, the manufacturer, and the commissioning agent.
We self-perform installation up to 600V with our own licensed crews and bring in trusted partners for medium-voltage, utility, and substation-class work — and we’re straight about which is which.
Credentials
Licensed, insured, and ready to qualify.
Certificates of insurance, license details, and prequalification paperwork available on request.
- Licensed Master Electrician
- Texas Electrical Contractor (TDLR)
- 450+ City of Austin permits
- NEC-current
- $2M–$5M general liability
- Bondable — any size project
Careers
Good electricians, good work, steady schedule.
We’re always glad to hear from licensed electricians and apprentices who take pride in clean, code-right commercial and industrial work.
Bidding a project? Let’s talk.
Bid invitations, subcontracting opportunities, preconstruction conversations, and contractor qualification — send it over and a real person will read it.