Janesville Construction Company email list
Janesville, WI has 24 construction company in the MapLeads maps index. Use the table below to filter the market, then scrape or export inside MapLeads for full contacts.
Janesville Construction Company market size
The 24 figure is a deduplicated count for construction company in Janesville. 75% website coverage means that share of rows has a website or domain. Figures update when MapLeads refreshes the index.
Businesses
24
Construction Company in Janesville — same business-row filter as the table.
Website coverage
75%
Share of rows in the current filter with a website field (row aggregate).
Reachable pool
18
Rows in this filter with a website field — enrichment pool.
Outreach score
55
0–100 from current-filter volume and website coverage (query-time on rows).
Outreach calculator
Janesville construction company — start from the 18 operators with a website field (24 total in this cut). Adjust your average order value and close rate to size pipeline.
Formula: reachable pool (rows with a website field) × close rate × average order value. This is a planning estimate, not a forecast — actual conversion depends on offer, list quality, and follow-up.
| Business | Industry | Location | Phone | Website |
|---|---|---|---|---|
| Capital Circle Industrial for Lease* | Construction company | Janesville, WI | +1 608 *** **51 | flexbldg.com |
| JG Innovations, Inc. | Steel fabricator; Con* | Janesville, WI | +1 608 *** **10 | jgius.com |
| Kincade Flooring & Construction/ Ki* | Construction company;* | Janesville, WI | +1 608 *** **49 | — |
| Aquatic Innovators LLC | Pond contractor; Cons* | Janesville, WI | +1 608 *** **40 | aquaticinnovators.com |
| Custom Components & Buildings | Metal construction co* | Janesville, WI | +1 608 *** **36 | customcompbldg.com |
| Advanced Construction of Janesville | Construction company;* | Janesville, WI | +1 608 *** **94 | advancedconstructiono* |
| Center Construction, L.L.C. | Concrete contractor; * | Janesville, WI | +1 608 *** **92 | centerconstructionllc* |
| Rock Road Companies, Inc. | Paving contractor; Ro* | Janesville, WI | +1 608 *** **44 | rockroads.com |
| JP Cullen | Construction company;* | Janesville, WI | +1 608 *** **01 | jpcullen.com |
| Richards Construction | Custom home builder; * | Janesville, WI | +1 608 *** **51 | richardsconstruction.* |
| MBM Masonry & Construction | Construction company | Janesville, WI | +1 608 *** **80 | — |
| Diversified Construction of Wiscons* | Handyman/Handywoman/H* | Janesville, WI | +1 608 *** **10 | diversifiedconstructi* |
| The State Group Industrial USA Ltd | Electrician; Electric* | Janesville, WI | +1 608 *** **85 | stategroup.com |
| Connell Construction | General contractor; B* | Janesville, WI | +1 608 *** **63 | connellconstructionll* |
| Avondale Roofing | Roofing contractor; C* | Janesville, WI | +1 855 *** **63 | avondaleroofing.com |
| Progressive Construction Services, * | Construction company | Janesville, WI | +1 608 *** **61 | pcsgov.com |
| Legan Construction & Remodeling | Construction company;* | Janesville, WI | +1 608 *** **00 | leganconstruction.com |
| Amwood Homes, Inc. | Construction company;* | Janesville, WI | +1 866 *** **10 | amwoodhomes.com |
| Post Builders | Construction company | Janesville, WI | +1 608 *** **62 | postbuilderswi.com |
| Jway General Commercial Contracting | General contractor; C* | Janesville, WI | +1 608 *** **60 | — |
Page 1 of 2 · 24 rows
Pull a live list for construction company in Janesville
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Construction Company in Janesville
Janesville, WI has 24 construction company businesses in the MapLeads maps index, making construction company the 15th largest vertical in the city (0.8% of Janesville's 3,188 businesses).
75.0% of those construction company rows carry a website — the enrichment pool for an email campaign in Janesville. Counts refresh with each index update.
The construction company market
Where the contractor category skews toward residential trades, construction companies here more often bid commercial, multi-family, or larger-scale residential projects that require bonding and a project management structure beyond a one-person crew. Decision-making sits with an owner or project executive who is juggling multiple simultaneous jobs rather than working tools on-site full time.
Janesville holds 0.0% of the 109,593 construction company businesses MapLeads tracks nationwide; within WI, Milwaukee leads the vertical at 95.
Janesville as a market
Janesville overall holds 3,188 businesses. Its largest verticals are Contractor (170), Doctor (153), Restaurant (149) — construction company sits further down the mix at 15th.
How to use this list
- Start with the 24 Janesville construction company rows below, then expand to nearby cities if volume runs short.
- Prefer rows with a website (75.0% of this market) for enrichment before cold email.
- Re-pull this city × industry cut after campaigns or quarterly — not the full national file every time.
FAQ: Janesville Construction Company email list
How many construction company businesses are in Janesville?
Janesville, WI has 24 construction company businesses in the MapLeads maps index — 0.8% of the city's 3,188 total, with 75.0% carrying a website. Counts refresh with each index update.
Does "construction-company" overlap with the contractor list, and are the same businesses double-counted across both?
A business can carry both categories if it advertises itself that way on Maps, since each list is pulled independently by its own category slug; comparing business names across the two lists is the way to spot overlap before combining them.
How does Janesville compare with other WI cities for construction company?
Milwaukee leads WI with 95 construction company businesses; Janesville holds 24. Both city markets are linked below.