NAICS 221121

Certified Women-Owned Electric Bulk Power Transmission and Control

12 certified women-owned vendors list NAICS 221121 (Electric Bulk Power Transmission and Control) among their codes, each holding an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search.

12 certified vendors · ranked by certification recency & profile depth

01BOWIE BUILT GOVERNMENT & CLEAN ENERGY PUBLIC WORKS SERVICES CORPORATION

Construction & Trades · Baton Rouge, Louisiana
WOSBEDWOSB

Bowie Built Government & Clean Energy Public Works Services Building Stronger Communities for a Cleaner Future Mission Bowie Built is driven by a mission to make communities safer, cleaner, and stronger by responsibly building and restoring infrastructure, combining construction expertise with clean energy, environmental restoration, and workforce opportunity. Company Overview Bowie Built develops and implements clean infrastructure projects that improve safety, efficiency, and resilience, serving as both a prime contractor and subcontractor on public and private sector initiatives. The company focuses on responsible construction practices, environmental restoration, and infrastructure improvements that strengthen communities while supporting workforce development. Founded and led by a determined female entrepreneur in a traditionally male-dominated industry, Bowie Built brings strong leadership, hands-on coordination, and a mission driven approach to every project.

02SMOKEY BLUE LLC

Professional & Management Consulting · Durant, Oklahoma
WOSBEDWOSB

Smokey Blue LLC is a woman-owned, EDWOSB-certified small business specializing in vendor coordination, contract management, and operational support. We help prime contractors and organizations stay aligned by acting as a bridge between awarded work and the vendors responsible for delivering it. Whether it's sourcing qualified subcontractors, supporting transitions post-award, or identifying breakdowns in communication and delivery, we bring clarity and structure to complex projects. Our experience spans healthcare operations, federal contract support, and community infrastructure- always grounded in real-world execution, not surface level solutions.

04LINE SIDE ELECTRIC, INC

Construction & Trades · Ogden, Utah
WOSB

We provide full-service electrical solutions for commercial construction and building maintenance projects, from ground-up developments to ongoing service contracts. Our expertise extends to complete billing renovations and remodeling, delivering modern, efficient, and code-compliant electrical systems. As a licensed electrical contractor, we handle projects of all sizes with precision and safety at the forefront. We also specialize in installing electrical systems in hazardous locations, ensuring compliance with stringent regulations and delivering reliable power in the most demanding environments

05EDT-THA ARCHITECTURE, LLC

Engineering & Architecture · Huntsville, Alabama
WOSB

EDT-THA Architecture, LLC is a woman-owned small business providing building construction architecture, engineering, interior design, and design-build services of buildings less than 1,000 SF, to buildings 200,000+ SF. We are experienced in Aviation, Education, Government, Multi-family, Retail, Restaurant/ Dining, Hospitality, Healthcare, Senior Living, Safety and Emergency Response Buildings, and Commercial.

06ADDON SERVICES LLC

Construction & Trades · Alexandria, Virginia
WOSB

Addon Services LLC is successfully executing IDIQ and JOC federal contracts within military bases. The projects include historic building renovation construction. Design Build construction encompassing a comprehensive list of Definable Features of Work including Mechanical, Electrical, Plumbing (MEP), HVAC, Piping, Ductwork, Roofing, Paving, Architectural, Infrastructure. Our customers were impressed with Addon’s successful completion of projects that they awarded us several contracts in the field of IT, Tech Pubs, Engineering & Professional support services.We are a distributer of UVSheltron UVC and Pure Air decontamination/disinfection products, PPE, masks, lab testing, medical and non-medical equipment sterilization, sanitization, bacteria/virus eradication.

07LD SUPPLY, LLC

Wholesale & Distribution · Chula Vista, California
WOSBEDWOSB8(a)SDVOSBVOSB

Small, nimble and reliable, LD Supply gets you what you need, when you need it! We specialize in power generation and electrical equipment, servicing federal, state and commercial contracts. Put us to work for you—we offer low cost solutions to your equipment needs, and most importantly, we are excellent communicators and will keep you in the loop every step of the way!

08PRO-TECH SERVICES LLC

Engineering & Architecture · Tucson, Arizona
WOSBEDWOSB

The team at Pro-Tech Engineering has extensive experience in undertaking substation planning and design (up to 500 kV), power system studies, transmission line and cable route development, distribution design, and protection coordination and grounding design for systems ranging from high voltage transmission systems to sub-transmission and distribution (4kV up to 35kV). This includes medium and low voltage plant distribution (13.8 kV to 120 VAC). Our Power plant design expertise includes 13.8 KV distribution down to 48 VDC Battery Power. Expertise in organizing electrical plants to better serve operators including developing MCC and panel loading “tools” in addition to 480 V cable sizing and protection. Also, Pro-Tech has expertise in working with plant operators to maximize energy savings.

09ADDON SERVICES LLC

Construction & Trades · Honolulu, Hawaii
WOSB

Addon Services LLC (Addon) is a DoD and civilian contractor with exceptional past performance in successfully executing projects in design build Construction, Real Property / Facilities Management, Professional/Administrative Services, Information Technology, Technical Publications, and Manufacturing. We are a woman owned 8(a) EDWOSB firm with a valid DD254.

10FIRELAKE CONSTRUCTION INC

Construction & Trades · Lawrence, Kansas
WOSBEDWOSB

Firelake is a diversified contracting company providing nationwide, turn-key general construction, civil construction, and environmental services. Firelake's range of services encompasses: Construction Management, Design Build/Bid-Bui8ld New Construction, Renovation/Demolition, Preventive Maintenance, HVAC Systems/Building Automation (BAS,FMS,EMS), Electronic and Physical Security Systems, Voice, Data and Telecommunication Systems, Access Control/Entry Control Systems; Closed Circuit Television, Anti-Terrorism/Force Protection, Earthwork and Site Restoration.

11OKAPI ENVIRONMENTAL GROUP, INC.

Environmental & Waste Services · Solana Beach, California
WOSB

Okapi Environmental Group, Inc. dba Pangea Biological, founded in 2006, and focuses on energy, infrastructure, environmental, and construction on 7,500+ projects. Pangea solves challenges for design, construction, and restoration of energy, utility, and infrastructure projects. Pangea Biological specializes in environmental compliance inspection; GIS, mapping, feasibility studies, regulatory consultation, biological resources, cultural resources, avian nest surveys, permitting, and training.

12ENGINEERING SERVICES LLC

Engineering & Architecture · Hunlock Creek, Pennsylvania
WOSB

Provide personnel to support the NAIC Codes listed such as Project Managers, Construction Managers, All Disciplines of Engineers, Schedulers, Planners, I&C Techs, Etc.,

Frequently asked

How many certified women-owned vendors are registered under NAICS 221121?

12 certified women-owned vendors list NAICS 221121 (Electric Bulk Power Transmission and Control) among their codes, each holding an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search and dated on each listing.

What is NAICS 221121?

NAICS 221121 is "Electric Bulk Power Transmission and Control" in the North American Industry Classification System — the federal standard procurement teams use to classify vendors. Womyn Owned lets you find certified women-owned suppliers by NAICS.