| Business | Phone |
| Ambrosini & Sons Electric 2 W 3rd St, Eureka 95501 | (707) 442-1170 |
| Colburn Electric 1402 Union St # B, Eureka 95501 | (707) 445-8474 |
| Kneaper Electric 2901 Hubbard Ln, Eureka 95501 | (707) 445-5465 |
| Parker Electric 638 W Washington St, Eureka 95501 | (707) 443-1651 |
| An Electrician Inc Eureka 95503 | (707) 834-6596 |
| Bailey Electric 4380 Excelsior Rd, Eureka 95503 | (707) 445-9719 |
| Chris Lehto Electric Eureka 95501 | (707) 443-3835 |
| Colburn Electric 304 C St, Eureka 95501 | (707) 445-8474 |
| Gellman Electrical 710 E St, Eureka 95501 | (707) 445-2661 |
| Solarwinds Northernlights Eureka 95501 | (707) 498-2804 |
| Sawyer Electric 2078 Quaker St, Eureka 95501 | (707) 445-4689 |
| Pro Electric Po Box 1314, Eureka 95502 | (707) 444-8234 |
| Northcoast Lighting & Electric 2975 Pigeon Point Rd, Eureka 95503 | (707) 269-0724 |
| Goodman Electric 4140 Williams St, Eureka 95503 | (707) 268-0844 |
| Humboldt Bay Instrument 6063 Celilo St, Eureka 95503 | (707) 445-1109 |
| J & M Electric 7785 Zanes Rd, Eureka 95503 | (707) 443-8108 |
| Johnson's Auto Elec & Truck 810 W Del Norte St, Eureka 95501 | (707) 444-8195 |
| Katri Electric 3005 Q St, Eureka 95501 | (707) 444-0296 |