Quanta Services, Inc. (Rev. 4/1/00)

Arby Construction, Inc.

19705 W. Lincoln Avenue – New Berlin, Wisconsin 53146

Tel: 262 549-1919 Fax: 262 548-3655

Arby Construction, Inc. and S.K.S. Pipeliners, Inc., its non-union arm, provide underground utility construction services to the gas, electric and telecommunications industry. Both companies are based in Wisconsin and operate in the eastern and central United States.

Chapman Companies, H.L.

9250 FM 2243 - Leander, Texas 78641

Tel: 512 259-7662 Fax: 512 259-7870

H.L. Chapman Company is a trenching contractor specializing in water and wastewater line trenching, mass site rock excavation, fiber optic and products pipeline trenching. Austin Trencher, a Chapman company, designs and builds trenching equipment and sells spare trencher parts. Sullivan Welding, a Chapman company, provides welding services for trenchers and other heavy equipment. D.B. Utilities, Inc. provides trenching services to utility contractors, subdivision developers, and other contractors. The Chapman companies operate primarily in the United States.

Conti Communications

659 Montrose Avenue – South Plainfield, New Jersey 07080

Tel: 908 754-8700 Fax: 908 822-0460

Conti provides tower construction services to the wireless communications industry.

Crown FiberCommunications, Inc.

6001 Live Oak Parkway – Norcross, Georgia 30093

Tel: 770 449-0852 Fax: 770 300-9108

Crown Fiber and its two separate operating companies; T.H Cable Construction and World CATV Communications, provide specialized construction, installation, and maintenance services of broadband networks for the cable T.V. industry. The Crown Fiber companies operate in the eastern United States.

Dillard Smith Construction Company

4001 Industry Drive – Chatanooga, Tennessee 37416

Tel: 423 894-4336 Fax: 423 490-2215

Dillard Smith specializes in the construction and maintenance of electric power lines and substations for electric utilities in the southeastern and eastern sections of the United States.

Driftwood Electrical Contractors, Inc.

2004 Stanford Road – Lancaster, Kentucky 40444

Tel: 606 365-3172 Fax: 606 365-3174

Driftwood is a specialty contractor which provides services to regional telephone companies and REAs. Driftwood operates primarily in Kentucky and the surrounding states.

Edwards Pipeline Company, L.L.C.

535 N. Highway 16, P.O. Box 1050 - Denver, North Carolina 28037

Tel: 704 483-0900 Fax: 704 483-0930

Edwards Pipeline, based in Denver, NC, provides natural gas pipeline construction services to electric utilities. Edwards also provides trenching and underground boring services.

Environmental Professional Associates

115 C Street – P.O. Box 791 - Marysville, California 95901

Tel: 530.634.6800 Fax: 530.741.2412

EPA is a contractor specializing in tree clearing, vegetation control and landscape maintenance for utility and telecommunications companies. EPA operates primarily in California. EPA also operates Tip Top as a separate division providing similar services to utilities and municipalities in California, and Computapole, an electric utility line inspection service and software company.

Fiber Technology, Inc.

3200 Wilcrest Drive, Suite 560 – Houston, Texas 77042

Tel: 713 339-4000 Fax: 713 334-5763

Fiber Technology performs installation and project management for cable television, telephone, microwave, and local area network (LAN) projects. Fiber Technology operates mainly in Texas, Florida, Louisiana, Michigan, and Southern California.

G.E.M. Engineering Co., Inc.

10970 Stancliff - Houston, Texas 77099-4206

Tel: 281 561-9225 Fax: 281 561-9399

GEM is a specialty contractor that provides architectural and engineering, and tower site construction services for the communication industry throughout the United States.

Golden State Utility Company

2007 West Tuolumne Rd. - Turlock, California 95382

Tel: 209.634.1399 Fax: 209.634.8319

Golden State is a full service outside plant contractor providing underground, aerial, and underwater turnkey installation, maintenance and splicing of fiber optic and coaxial cable. Golden State also provides construction and maintenance of cellular sites. Golden State operates primarily in California and the West Coast of the United States.

Grand Electric Company

701 W. Mississippi Avenue – Denver, Colorado 80223

Tel: 303 698-9001 Fax: 303 698-0940

Grand Electric provides inside electrical services to commercial customers, with an emphasis on "core and shell" projects for shopping center and mall constructions and other new builds. Grand Electric also performs "tenant finish remodeling" projects. The company operates primarily in Colorado.

Haines Construction Company

4616 Oil Patch Drive – Woodward, Oklahoma 73803

Tel: 580 256-2205 Fax: 580-256-1008

Haines performs gas pipeline installation projects primarily in the central United States. Their division, Brown Engineering and Testing, Inc., provides hydrostatic testing and related services to the pipeline industry in the continental United States.

Harker & Harker, Inc.

1465 West 4^th Street - Reno, Nevada 89503

Tel: 705.329.0407 Fax: 705.329.0478

Harker & Harker provides installation and maintenance of distribution systems, transmission systems, and substations for electric utilities, and installation and maintenance of transportation control infrastructure. Harker & Harker operates primarily in the Western United States.

Intermountain Electric, Inc.

602 S. Lipan St. - Denver, Colorado 80223

P.O. Box 40096 – Denver, CO 80204

Tel: 303 733-7248 Fax: 303 722-2410

Intermountain provides installation, maintenance, and other electrical contracting services to various utilities, and governmental agencies, general contractors, and owners and operators of commercial and industrial properties in the western sections of the United States.

Manuel Bros., Inc.

908 Taylorville Rd., Ste. 104 - Grass Valley, California 95949

Tel: 530.272.4213 Fax: 530.272.3815

Manuel Bros. is a telecommunications contractor providing installation, removal and maintenance of underground conduits, and cable. Manuel Bros. operates in the Western United States and also manages Western Directional Drilling and Renaissance Construction as a specialty contractors.

Network Communications Services, Inc.

1040A Hamilton Road - Duarte, California 91010

Tel: 626-357-3494 Fax: 626-357-4174

Network Communications Services provides specialty splicing services to the telecommunications industry.

NorAm Telecommunications, Inc.

15701 S.E. 135^th Avenue - Clackamas, Oregon 97015

Tel: 503.656.0607 Fax: 503.656.5730

NorAm specializes in fiber optic cable installation, fiber splicing, terminations and service restoration as well as project management. NorAm also provides network planning and systems design, construction, installation, maintenance and service and maintenance of phone systems. NorAm provides fiber optic services in the western United States and network planning and system design nationwide

North Sky Communications

120 N.E. 136^th Avenue - Vancouver, Washington 98684

Tel: 360 254-6920 Fax: 350 254-5097

North Sky specializes in the installation and maintenance of cable television systems. North Sky also installs and maintains communication systems and telephone lines. North Sky operates in the northwestern United States.

Northern Line Layers, Inc.

6780 Trade Center Ave. – Billings, Montana 59101

Mail: P.O. Box 80290 - Billings, Montana 59108-0290

Tel: 406 652-1759 Fax: 406 656-5172

Northern Line Layers is a communication and utility line contractor based in Billings, MT, which operates in the northwestern United States but is licensed to do business in 49 states. Northern Line Layers also operates one of a select few large rail mounted cable plows, and will provide turn key communications services from permitting to testing. Its division, Bonneville Construction, installs telecommunications and cable systems, and network, technical and broadband services.

Pac West Construction

1555 E. St. Gertrude Place – Santa Ana, California 92705

Tel: 714-430-6020 Fax: 714-430-6040

Pac West is engaged principally in the installation and maintenance of telecommunication cable systems.

PAR Electric Contractors, Inc. (Founding Company)

1440 Iron Street - North Kansas City, Missouri 64116

Tel: 816.474.9340 Fax: 816.471.3569

PAR provides full electric infrastructure contracting services, including installation of electrical transmission and distribution, both underground and above ground, and construction of electric substations. Par also provides emergency electrical restoration services and other routine electrical system maintenance services. Par operates throughout the United States

P.D.G. Electric Company

4421 12^th Street Court East – Bradenton, Florida 32403-3611

Tel: 941 756-1311 Fax: 941 756-3594

P.D.G. Electric is an electrical contractor specializing in both cable installation and traffic control systems. PDG was the first in the State of Florida to design and install the interconnection of signal and voice communications utilizing laser and fiber optic technology. PDG operates in Florida.

Potelco, Inc. (Founding Company)

14103 Eighth Street East – Sumner, Washington 98390

Tel: 253.863.0484 Fax: 253.863.1813

Potelco provides electric and telecommunication infrastructure contracting services, including installation of overhead and underground lines and facilities for the power, telecommunications and cable television industries. Potelco also provides electrical and telecommunication installation, maintenance and repair services to various markets. Potelco also operates Kingston Contracting, Inc., which provides electrical services required for transportation industry, light rail, heavy rail, signaling and communications. Potelco operates primarily in the Northwestern United States.

Ranger Directional, Inc.

205 Glaser Drive – Lafayette, Louisiana 70508

Tel: 318 837-5447 Fax: 318 837-2409

Ranger provides horizontal directional drilling installations of conduit and casings beneath rivers, roadways, environmentally sensitive areas and other surface obstructions for the petrochemical, cable, telecommunications and utility industries.

The Ryan Company, Inc.

60 Reservoir Park - Rockland, Massachusetts 02370

Tel: 781 878-2800 Fax: 781 871-5078

The Ryan Company supplies electric power contracting services and maintenance and repair services for government entities throughout the United States.

Seaward Corporation

1 Route 236 – Kittery, Maine 03904

P.O. Box 1177 – Portsmouth, NH 03802-1177

Tel: 207 439-5900 Fax: 207 439-5917

Seaward is a provider of electric utility and other construction services to customers throughout the U.S.

Spalj Construction Company

Couny Road 12 – P.O. Box 428 - Deerwood, Minnesota 56444

Tel: 218.546.6022 Fax: 218.546.8243

Spalj is a contractor specializing in network installation for national telecommunication and power service providers. Since its inception in 1956, Spalj has completed projects involving direct plowing, directional boring, trenching, cable pulling, rock cutting, and aerial construction. Spalj is a highly regarded construction company serving the network installation needs of major wireline communications companies on a national scale. Spalj provides telecommunication services throughout the United States. Spalj also provides cable splicing and specialty directional boring services to its customers through its Smith Contracting, and Wilson Roadbores operating companies and trenching services through Thorstad Brothers Tiling..

Sumter Builders, Inc.

1151 North Pike West – Sumter, South Carolina 29153

Tel: 803.469.8585 Fax: 803.469.4600

Sumter is an electric utility contractor which constructs and maintains distribution systems, transmission systems and sub-stations for electric utilities in the Southeastern United States. Sumter operates primarily in South and North Carolina and Georgia.

Telecom Network Specialists

5808 Lake Washington Blvd., Ste. 215 - Kirkland, Washington 98033

Tel: 425.827.3727 Fax: 425.827.5113

Telecom offers a wide range of professional contract services in engineering, installation, maintenance, test and turn-up of communications equipment. With extensive technical capabilities, Telecom provides service throughout the telecommunications industry to manufacturers, long distance network companies, and telephone operating companies. Additionally, Telecom offers system integration customized to meet each customer’s rack & stack assembly requirements. Telecom’s engineering services focus on transmission equipment, its infrastructure and peripheral support systems, while the operations department offers extended staging and inventory control through its distribution alliances. To provide these nationwide services in a timely manner, a full range of project management services is available. Telecom has achieved ISO 9002-94 registration and continues as the leader in quality standards for installation of telecommunications equipment.

Tom Allen Construction Company

6218 Miller Drive – Edwardsville, Illinois 62025

Tel: 618 656-3059 Fax: 618 656-8021

Tom Allen Construction Company specializes in underground utility installations, including gas pipelines. Tom Allen also has an extensive background in sheeting, bracing, dewatering, manhole rebuilds, conduit repairs, boring, duct rodding and cable pulling. Specialty Drilling Technology, Inc., related to Tom Allen Company, is a specialty contractor that provides directional boring services primarily to the telecommunication industry. Tom Allen operates throughout the U.S. but primarily in the Midwest.

TRANS TECH Electric, Inc. (Founding Company)

4601 Cleveland Road - South Bend, Indiana 46619

Tel: 219.272.9673 Fax: 219.271.0144

TRANS TECH installs, maintains and repairs traffic signals, signage, highway control systems components, highway and airport lighting and fiber optics for states, DOTs and other governmental entities. TRANS TECH also performs traditional electrical contracting services for private and public entities in various markets. TRANS TECH operates primarily in Indiana and the adjoining states.

Trawick Construction Company, Inc.

1555 South Blvd., P.O. Box 1037 – Chipley, Florida 32428

Tel: 850 638-0429 Fax: 850 638-8373

Trawick provides services to the telecommunications industry including aerial cable installation, buried cable construction, conventional and directional boring and bridge attachment work. Trawick operates throughout the southeastern United States.

TTM, Inc.

1722 Toal St. - Charlotte, North Carolina 28206

Tel: 704 335-1624 Fax: 704 335-1626

TTM is a telecommunications contractor specializing in networking and communications solutions. TTM provides voice/data wiring, networking, servers, fiber and copper cabling, all supporting premises facilities. TTM operates in the southeastern United States.

Underground Construction Co., Inc.

5145 Industrial Way - P.O. Box 2000 - Benicia, California 94510

Tel: 707.746.8800 Fax: 707.746.1314

Underground installs and maintains utility and industrial conduits, pipelines, airport fueling systems and other specialized heavy engineering projects. Through its division, Hudson & Poncetta, Underground provides utility services including installation and maintenance for the telecommunications industry. Underground operates throughout the United States.

Utilco, Inc.

905 Omega-Ty Ty Road – Tifton, Georgia 31794

P.O. Box 1663 – Tifton, Georgia 31793

Tel: 912 386-2089 Fax: 912 386-5159

Utilco provides specialty electrical services including installation of transmission and distribution lines, and emergency repair. In addition, Utilco utilizes patented inventions that perform railroad services such as advanced brush clearing and emergency repair.

VCI Telecom, Inc.

Mail: P.O. Box 3809 – Rancho Cucamonga, California 91729

10575 Banana Avenue – Fontana, California 92337

Tel: 909 -.823.7570 Fax: 909.823.7303

VCI provides telecom infrastructure services, specializing in aerial and underground placement, underground conduit construction, splicing and testing of fiber optic copper and coax cable. VCI operates primarily in California, concentrating in Southern California.

Wade D. Taylor, Inc.

155 Sylvan Rd.t – Athens, Georgia 30606

Tel: 706-549-6680 Fax: 706-549-6681

Wade D. Taylor performs gas pipeline installation and maintenance services for utilities.

R.A. Waffensmith & Co., Inc.

2042 North Kelty Road - P.O. Box 888 – Franktown, Colorado 80116

Tel: 303 688-1995 Fax: 303 688-9807

Waffensmith is an electric utility contractor specializing in electrical power line installation and maintenance. Waffensmith operates in the southwestern United States.

West Coast Communications, Inc.

1935 West Eleventh Street, Suite L - Upland, California 91786

Tel: 909 949-1350 Fax: 909 949-6850

West Coast Communications specializes in the construction and installation of cable television systems in the western United States.

World Fiber, Inc.

5670 Howard Gap Rd. – Flat Rock, North Carolina

P.O. Box 705 – Hendersonville, NC 28793

Tel: 828 697-5655 Fax: 828 696-9663

World Fiber provides specialized construction, installation, and maintenance services of broadband networks for the cable T.V. industry. World Fiber operates in the south central and eastern United States.