If you’ve started evaluating subcontractor prequalification platforms, you’ve probably already noticed the same three or four names showing up in every search result: ISNetworld, Avetta, Procore Prequalification, and a handful of niche tools. What those search results don’t always make clear is a fundamental difference in how these platforms are structured, and more specifically, who pays.
That distinction matters more than most feature-comparison charts will tell you. When a prequalification platform charges your subcontractors hundreds or thousands of dollars per year just to register, it changes everything: your bidder pool shrinks, your subs build those fees into their bids, and smaller trade partners (including the MBE/WBE/DBE firms you may need on your projects) can get priced out entirely.
This comparison breaks down the differences between Billy, ISNetworld, and Avetta from the perspective that matters most to general contractors: what does each platform actually do, what does it cost, and what does the experience look like for your subcontractors?
$875+/year is what ISNetworld charges each subcontractor
That’s per sub, per year, in addition to a one-time setup fee. Avetta follows a similar model with annual fees based on company size and number of client connections. Billy charges subcontractors $0.
What’s Inside
- The Pricing Model Problem Nobody Talks About
- Feature Comparison: Billy vs. ISNetworld vs. Avetta
- ISNetworld: The Heavyweight (And Its Tradeoffs)
- Avetta: The Flexible Middle (With Hidden Complexity)
- Billy: Built for GCs, Free for Subs
- Which Platform Fits Your GC?
- Switching from ISNetworld or Avetta: What to Expect
The Pricing Model Problem Nobody Talks About
ISNetworld and Avetta both use what the industry calls a “contractor-paid” model. That means your subcontractors, not you as the GC, pay for access to the platform. ISNetworld charges an annual subscription starting at $875/year (scaling up based on workforce size) plus a one-time setup fee. Avetta follows a similar tiered structure with registration fees and annual membership fees that vary by the number of client connections.
On the surface, this seems like a win for the GC. Someone else is picking up the tab. But dig into the second and third-order effects, and the picture changes.
01
Smaller Bidder Pools
Small and mid-size subs, especially minority-owned and women-owned firms, often can’t justify paying $800 to $1,500 per platform per year across every GC they want to work with. They self-select out of your bid lists before you even know they exist.
02
Inflated Bid Prices
Subcontractors who do pay treat platform fees as overhead. Those costs get distributed across their bids. You may not see a line item for “ISNetworld subscription,” but it’s embedded in the numbers. GC-paid models eliminate this markup entirely.
03
Sub Resentment and Friction
User reviews on platforms like Capterra and Software Advice are packed with subcontractor frustration. Common complaints: being forced to pay for access, clunky interfaces, difficulty reaching support, and feeling like the platform serves the hiring client, not them.
Kelsey, a compliance manager at a Southeast GC we work with, called out a specific example during onboarding: one of their competitors required subs to register through VETA at roughly $1,500 per sub. “Our best subs told us flat out: if you make us pay to bid on your work, we’ll bid on someone else’s.”
Feature Comparison: Billy vs. ISNetworld vs. Avetta
Here’s how the three platforms stack up across the features that matter most to general contractors in commercial construction:
| Feature | Billy | ISNetworld | Avetta |
|---|---|---|---|
| Cost to Subcontractors | $0 (Free) | $875+/year + setup | $249 setup + $799+/year |
| Sub Account Required? | No | Yes | Yes |
| Custom Prequalification Forms | ✓ Fully customizable | Configurable per client | Modular requirements |
| Procore Integration | ✓ Native (side panel) | No native integration | No native integration |
| COI Tracking Included | ✓ Built-in | Yes (insurance monitoring) | Yes (insurance monitoring) |
| Built for Construction GCs | ✓ Construction-only | Multi-industry (oil & gas focus) | Multi-industry (supply chain focus) |
| Vendor Network Size | Your vendor pool | 90,000+ contractors | 125,000+ contractors |
| ERP Integrations | Sage, Viewpoint, CMiC, JD Edwards | Limited | Limited |
| Best For | Regional & mid-market GCs | Oil & gas, heavy industrial | Global supply chain ops |
ISNetworld: The Heavyweight (And Its Tradeoffs)
ISNetworld is the largest player in the contractor prequalification space. ISN’s platform serves over 900 hiring clients and maintains a network of more than 90,000 contractor subscribers. The platform’s strength is depth: their RAVS verification team reviews safety programs, insurance certificates, and compliance documentation against detailed regulatory standards.
For hiring clients in oil and gas, petrochemical, and heavy industrial where a single safety incident can result in catastrophic outcomes, that level of verification is worth the investment. ISNetworld was built for that world, and it shows.
Where ISNetworld creates friction for GCs:
The subcontractor burden is real.
Subcontractors pay the subscription, which starts at $875/year and scales with workforce size. Setup fees apply for new accounts, and reinstatement fees kick in if a subscription lapses. For a small electrical contractor working with five different GCs who each use a different platform, the combined annual cost across ISNetworld, Avetta, and other platforms can easily exceed $5,000 before they’ve bid on a single job.
The process is designed for compliance teams, not preconstruction.
ISNetworld’s questionnaires can require 8 to 40 safety programs to be uploaded and reviewed. The RAVS process can take weeks. If your goal is to prequalify a sub before bid day, ISNetworld’s timeline may not match your procurement cycle. User reviews consistently flag the complexity of navigation, difficulty reaching support, and the volume of required documentation.
No native Procore or Autodesk integration.
ISNetworld does not offer an API for direct integration with construction project management platforms. If your teams live in Procore, vendor compliance data from ISNetworld sits in a completely separate system. That means manual checks, duplicate effort, and compliance gaps that fall through the cracks.
Avetta: The Flexible Middle (With Hidden Complexity)
Avetta positions itself as a more modern, flexible alternative to ISNetworld. With 500+ clients and over 125,000 contractors in their network, Avetta serves a broad range of industries including construction, manufacturing, utilities, and telecommunications. The platform’s modular approach lets hiring clients build custom compliance requirements for their vendor base.
Avetta’s edge over ISNetworld is flexibility. Hiring clients can configure prequalification workflows by risk level, location, and scope, and the platform offers multiple subscription tiers for contractors with varying levels of verification depth.
Where Avetta creates friction for GCs:
Subcontractors still pay.
Like ISNetworld, Avetta charges contractors for access. Registration fees, annual membership fees, and additional fees for connecting with more clients add up. The pricing isn’t published publicly, which makes comparison difficult, but user reviews and third-party sources indicate a one-time registration fee starting around $249 plus annual membership fees starting around $799 for a single-client connection. Multiple GC relationships increase the cost.
The “simple onboarding” can still take 30 to 45 days.
Despite marketing that emphasizes streamlined processes, Avetta’s own documentation suggests the full registration and verification process takes a month or more for well-prepared contractors. That’s better than ISNetworld’s timeline in some cases, but it’s still a significant gap when you need a sub prequalified before a bid opening next week.
Supply chain DNA, not construction DNA.
Avetta’s platform is designed around supply chain risk management for large enterprises. Features like sustainability assessments, ESG reporting, and global supply chain monitoring are valuable for corporations managing thousands of vendors worldwide. For a GC managing 200 trade partners across the Southeast, those features add complexity without adding value.
Billy: Built for GCs, Free for Subs
Billy takes a fundamentally different approach. Instead of building a platform that serves every industry and charges subcontractors for access, Billy was built exclusively for construction general contractors who need a practical, integrated prequalification and compliance tool.
What Makes Billy Different
Subcontractors never pay. Ever.
No account creation. No login portals. No annual fees. Subs receive a branded link or visit a form embedded on your website, fill out the prequalification questionnaire, upload their documents, and submit. Your team gets notified instantly. Completion rates go up because the friction goes down.
Your form, your rules.
Billy’s prequalification forms are fully customizable. Ask for what you need. Skip what you don’t. Update requirements without waiting for a platform support ticket. If your firm cares about bonding capacity but not cybersecurity, your form should reflect that.
Deep integration with the tools GCs actually use.
Billy integrates natively with Procore through an embedded side panel, so project teams can view compliance status directly from the vendor directory, project schedule, budget, commitments, and purchase orders. Billy also connects with Autodesk, Sage 300, Viewpoint Vista, CMiC, JD Edwards, and DocuSign.
COI tracking, prequalification, and compliance in one platform.
ISNetworld and Avetta focus on prequalification. Billy bundles prequalification with automated COI tracking, W9 collection, endorsement verification, business license monitoring, and renewal reminders. One platform for all your vendor compliance needs.
Which Platform Fits Your GC?
Not every platform is wrong for every company. The right choice depends on your industry, scale, and priorities. Here’s a straightforward framework:
Choose ISNetworld if…
You’re a hiring client in oil and gas, petrochemical, or heavy industrial. Your vendors already have ISN accounts. You need RAVS-level safety program verification. Your projects carry extreme hazard risk, and your clients or owners contractually require ISN compliance.
Choose Avetta if…
You’re a large enterprise managing a global supply chain across multiple industries. You need sustainability and ESG reporting built into your vendor qualification process. Your organization has the internal resources to manage a complex platform with multiple compliance tiers.
Choose Billy if…
You’re a general contractor in commercial construction (residential, multifamily, institutional, mixed-use). You want your subs to have a simple, free submission process. You use Procore or Autodesk and need prequalification data to live inside your existing project management workflow. You need COI tracking and prequalification in one tool instead of paying for separate platforms. You’re managing 100 to 1,000 trade partners and want to right-size your compliance tooling without enterprise overhead.
Switching from ISNetworld or Avetta: What to Expect
If you’re currently on ISNetworld or Avetta and considering a move, here’s what the transition typically looks like for GCs who’ve made the switch to Billy:
Week 1: Setup and Form Configuration
Billy’s team works with you to configure your prequalification form, set up approval workflows, and connect your Procore or Autodesk environment. Most GCs are live within a few business days.
Week 2: Vendor Migration
Your existing vendor data imports into Billy. Subcontractors receive branded invitations to submit their prequalification information through your new form. No registration required on their end.
Weeks 3 and 4: Go Live
New subs coming in through your bid process use the Billy form. Existing compliance data (COIs, endorsements, licenses) transitions to Billy’s automated tracking system with renewal reminders and expiration alerts active from day one.
Ongoing: Your Subs Thank You
The most common feedback GCs get from their subs after switching to Billy: “That was so much easier.” No accounts, no fees, no complex portals. Just a form that takes 15 minutes and a compliance relationship that runs on autopilot.
Stop charging your subs for the privilege of working with you.
See how Billy handles prequalification, COI tracking, and vendor compliance in one platform.
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