The platforms below are established, verifiable products already used across the construction industry — not general payroll tools with a construction label added on. Each is compared here on the same three factors that matter most for contractors: certified payroll and prevailing wage handling, union support, and job costing integration.

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1. ADP Workforce Now for Construction

ADP Workforce Now for Construction pairs ADP's general HCM platform with construction-specific add-ons through a dedicated Construction Center of Excellence team. It natively supports prevailing wage rate application, union contract wages and benefits, and certified payroll report generation for government-funded projects, alongside standard payroll, tax filing, and HR functions.

• Certified payroll: Generates certified payroll and union reports natively for federal, state, and local compliance.
• Union support: Manages and assigns union contract wages and benefits directly.
• Job costing: Captures accurate hours across multiple job sites and states for labor cost tracking; deeper job-site time and labor allocation is available through ADP Marketplace integrations.

Best for: Mid-size to large contractors (roughly 50–1,500+ employees) that want an all-in-one HCM platform with dedicated construction industry support. See our full ADP Workforce Now in-depth review.

2. Foundation Software (Payroll Module)

Foundation Software is a construction accounting platform built specifically for contractors, with payroll processing tied directly into its job costing engine. It handles multiple jobs, localities, pay rates, and trades on a single timecard, and automates certified payroll reporting including WH-347 form generation for Davis-Bacon compliance.

• Certified payroll: Automates wage, fringe, and deduction calculations across employee classifications, with WH-347 generation built in.
• Union support: Handles union compliance and multi-rate, multi-trade payroll natively.
• Job costing: Posts labor cost and job cost simultaneously from a single transaction, so payroll and job costing stay tied out without re-entry.

Best for: Small to mid-size labor-intensive contractors (roughly 10–1,500 employees) that want accounting and payroll unified in one system. See our full Foundation Software review.

3. Payroll4Construction

Payroll4Construction is a payroll processing service built exclusively for the construction industry and operated by Foundation Software. Contractors submit timecards and Payroll4Construction's team runs payroll and produces certified payroll reports, handling union wages, prevailing wage, and multi-state payroll as its core specialty rather than an add-on.

• Certified payroll: Produces certified payroll reports in required federal and state formats as a standard part of the service.
• Union support: Applies correct union wages automatically, including home/away fringe and deduction logic when workers move between union halls.
• Job costing: Integrates with major construction accounting platforms to feed labor cost data back for job costing and cash flow visibility.

Best for: Contractors whose main challenge is union tracking and prevailing wage compliance and who want a service-based, fully outsourced payroll model. See our full Payroll4Construction review.

4. Sage 100 Contractor

Sage 100 Contractor (formerly Sage Master Builder) is construction management software covering estimating, job costing, project management, and payroll in one system. Certified payroll, prevailing wage, and union payroll are built-in modules rather than third-party add-ons, which is a common reason contractors move to it from general accounting software.

• Certified payroll: Automatically generates certified payroll reports required under Davis-Bacon and similar state programs.
• Union support: Tracks and calculates union-specific wages, deductions, and benefits, including cash-equivalent prevailing wage benefits for non-union crews on Davis-Bacon jobs.
• Job costing: Task-level job costing across labor, materials, and equipment with construction-specific cost codes.

Best for: Contractors in roughly the $5–20 million revenue range doing commercial, AIA-billed, or government work who have outgrown general accounting software. See our full Sage 100 Contractor review.

5. CMiC Enterprise

CMiC is a full construction ERP combining general ledger, job costing, project management, and payroll/HR in one native platform, aimed at large contractors managing complex, multi-entity project portfolios. Its human resources module is built to handle payroll and employee data alongside project financials rather than as a bolted-on module.

• Certified payroll: Supported as part of its integrated financial and HR management functionality for government and large commercial work.
• Union support: Handled within its native HR and payroll modules alongside broader workforce management.
• Job costing: Deep, native job costing tied directly to the general ledger, a core strength of CMiC's ERP architecture.

Best for: Large contractors seeking full ERP consolidation — accounting, HR, payroll, and project controls in a single system. See our full CMiC Enterprise review.

6. Viewpoint Vista

Viewpoint Vista (Trimble Construction One) is an accounting-first construction ERP with strong human resources and payroll management, often positioned as a mid-market alternative to CMiC for contractors who want ERP-level consolidation without the largest enterprise footprint.

• Certified payroll: Available natively, and commonly extended through certified-payroll and union-reporting integrations for contractors that also run a separate HCM system alongside Vista.
• Union support: Included as part of its human resources and payroll management functionality.
• Job costing: Tightly integrated with accounting and project data, a core strength of the platform.

Best for: Mid-size to large contractors that want a fully integrated accounting-first ERP with strong usability. See our full Viewpoint Vista review.

7. Gusto

Gusto is a general small-business payroll platform, not a construction-specific one. It handles standard payroll, tax filing, benefits, and basic project-cost reporting well, but it does not include native certified payroll reporting, prevailing wage calculation, or union fringe management — contractors who need those typically pair Gusto with a certified-payroll add-on or move to a construction-specific platform once government or union work becomes regular.

• Certified payroll: Not native; requires a third-party add-on or export to a certified payroll tool.
• Union support: Not a built-in feature.
• Job costing: Basic project-cost reporting only, not full construction job costing.

Best for: Small residential contractors and specialty trades with simple payroll needs and no current certified payroll or union obligations. See our full Gusto review.

Quick Comparison

Platform	Certified Payroll	Union Support	Best Fit
ADP Workforce Now	Native	Native	Mid-large, all-in-one HCM
Foundation Software	Native (WH-347)	Native	Small-mid, accounting + payroll unified
Payroll4Construction	Core specialty	Core specialty	Outsourced, union/prevailing wage heavy
Sage 100 Contractor	Native	Native	$5–20M revenue, AIA/government work
CMiC Enterprise	Supported	Native	Large, full ERP consolidation
Viewpoint Vista	Native/extended	Native	Mid-large, accounting-first ERP
Gusto	Not native	Not native	Small contractors, simple payroll