trenching and excavation

Penna Construction (A.J. Penna & Son Construction) has provided underground utility excavation services for over six decades, since 1947. Based in Norwalk, Connecticut, it is an approved utility contractor for major utility companies and municipalities in the lower Connecticut region, and serves as an on-call emergency contractor for towns and utility companies in Fairfield County, offering 24-hour emergency services.

backfill and compactionconcreteconduit/vault installationelectric line installation and weldingemergency repairlandscapingmass and rough gradingpavingpotholingpre-construction constructability reviewsurface restorationunderground utility excavationwater utility installation

Cedar Creek Corporation is a certified Women's Business Enterprise (WBE) providing civil construction services throughout California and Nevada. Its expertise includes foundation drilling, limited access power line maintenance and construction, underground utility work, fire and storm restoration, traffic control management, and eco matting. The company emphasizes professionalism, safety, and environmental stewardship.

debris removalerosion controlfoundation drillingHorizontal Directional Drilling (HDD)hydroseeding and revegetationtraffic control managementutility pole setting

Construction Group International LLC (CGI) is a woman-owned small business certified by OMWBE and registered with the City of Seattle and King County. Based in Woodinville, WA, CGI specializes in demolition and abatement services and serves clients across Washington State, including general contractors, building owners, municipalities, school districts, hospitals, consultants, and homeowners.

abatementasbestos abatementdemolitionequipment operationhazardous materials remediationlead-based paint removalmold remediation

Crosby Plumbing is a family-owned, woman-owned plumbing and septic company founded by Mike and Sandy Crosby in 2003. It provides licensed, code-compliant septic, underground, and service plumbing for residential and commercial clients in the Kansas City metro area, with 24/7 emergency dispatch.

drain cleaningemergency dispatchgas line installation and pressure testinghydro jettingleak detectionseptic maintenance and pumpingseptic system installationtrenchless pipe burstingunderground pipe installationvideo inspectionwater heater installation

DJ's Electrical is a powerline industry contractor providing transmission, distribution, substation, inspection, emergency storm response, underground, directional drilling, and tree trimming services. The company installs and maintains transmission lines, steel poles, concrete pole foundations, drill shafts, and river crossings, and offers pole and equipment replacements, reconductors, overhead to underground conversions, new line construction, and tree wire installation. It serves clients including Portland General Electric, Benton PUD, Benton REA, Big

concrete pole foundationsdrill shaftsnew line constructionoverhead to underground conversionspole and equipment replacementspole inspectionsreconductorsriver crossingssite restorationsteel pole installationsubstation construction and expansiontransformer installationtransmission line installation and maintenancetree wire installationunderground cable inspectionunderground conduit installationvault setting

Feyen Zylstra is a national electrical services firm founded in 1980 by Bob Zylstra and Marlin Feyen. The company designs, installs, and maintains electrical and low voltage systems, offering turnkey solutions with a single point of contact. Its expertise lies in the manufacturing, commercial, and healthcare industries, and it serves markets including automotive, food and beverage, life sciences, data centers, and government.

audio visualBIM coordinationdesign & engineeringelectrical constructionheavy equipment riggingHi-Pot testinginfrared thermography testingmegger testingPLC programmingprefabricationpreventive maintenancerobotics integrationstructured cablingVDC

Altstadt Hoffman Plumbing is a licensed, bonded, and insured plumbing company serving Indianapolis, Evansville, and Bloomington, Indiana, and Louisville, Kentucky. It provides residential, commercial, and industrial plumbing, drain cleaning, and leak detection services, and describes itself as the trusted plumbing leader for over 50 years.

24-hour emergency plumbingbackflow testing and repairboiler repair and installationdrain cleaninggas pipingindustrial design and buildmedical gas installationprocess pipingsteam pipingunderground boringunderground leak detectionvideo camera inspectionWater-Jetting