There's no single best AP outsourcing company. Large finance BPO firms like Genpact, WNS (now part of Capgemini), Infosys BPM, and Accenture fit big, complex operations. Corcentric pairs managed AP with its own software and payments. GEP fits companies buying AP as part of a wider procurement program. If you want to keep AP in-house and just cut the manual work, AP automation software is the other route.
AP Outsourcing Companies at a Glance
Use this table to build a shortlist. Then confirm current scope, systems, pricing, and contract terms with each company directly, because offerings change.
| Company | Type | Who does the work | Usual fit |
|---|---|---|---|
| Quick Payable (alternative) | AP automation software inside Salesforce | Your team, with software doing the repeat steps | Salesforce teams that want to keep AP in-house |
| Genpact | Finance and accounting BPO with its own AP software | Provider staff plus AI tools | Large enterprises |
| WNS (Capgemini) | Finance and accounting BPO, including procure-to-pay | Provider staff plus automation | Mid-market to enterprise |
| Infosys BPM | Procure-to-pay and finance outsourcing | Provider staff plus automation | Companies wanting broad P2P coverage |
| Accenture | Finance operations within larger transformation programs | Provider staff plus technology | Large enterprises with wider change goals |
| Corcentric | Managed AP plus its own AP software and payments | Provider team on provider technology | Mid-market to large companies wanting one vendor for AP and payments |
| GEP | Source-to-pay technology and managed services | Provider staff plus GEP platform | Companies buying AP as part of a procurement program |
AP Outsourcing Company Profiles
We start with Quick Payable because many teams searching for outsourcing actually need automation. If you're sure you need outside staff, skip to Genpact.
Quick Payable: Salesforce-Native AP Automation
Quick Payable doesn't supply AP staff. It gives your own team software that does the repeat AP work inside Salesforce, so you get much of the capacity you'd outsource for without handing control, data, or vendor relationships to another company.
What it does: AI OCR reads PDF, PNG, and scanned invoices. Invoices are checked against POs with 2-way and 3-way matching, and likely duplicates are flagged before approval. Multi-level approvals route by vendor, amount, department, or entity. It also handles vendor GL coding, multi-entity AP, export to your ERP or accounting system, dashboards, and a full audit trail. See the full Quick Payable feature list.
Why teams choose it over outsourcing
- AP data stays in your Salesforce org, not a provider's system
- Your approvers, your rules, your vendor relationships
- Flat per-user pricing instead of per-invoice and exception fees
- No transition contract or exit fees to plan around
- Built by Differenz System, ISO 27001:2022 certified
When it's not the right fit
- You don't use Salesforce
- You have no one in-house to approve and review invoices
- You need a provider to run vendor calls and payments for you
1. Genpact
Genpact is a large finance and accounting services firm with AP teams in many countries. In June 2025 it released the Genpact AP Suite, an agentic AI product set built on Microsoft Azure with four modules: AP Capture, AP Advance, AP Trace, and AP Assist. That means you can buy AP as a people-plus-software service from one company.
2. WNS (Part of Capgemini)
WNS provides finance and accounting outsourcing, including AP and procure-to-pay. Capgemini completed its $3.3 billion acquisition of WNS on October 17, 2025, so WNS now operates within the Capgemini group. At the time, WNS reported more than 66,000 people across 65 delivery centers.
3. Infosys BPM
Infosys BPM, the business process arm of Infosys, offers procure-to-pay outsourcing that covers invoice processing, vendor queries, vendor master data, and payment support. It suits buyers who want the whole P2P chain handled, not just invoice entry.
4. Accenture
Accenture runs finance operations for large organizations, with AP work like PO and non-PO invoice processing, matching, payments, and reconciliation. AP is usually part of a wider finance or transformation engagement, not a standalone purchase.
5. Corcentric
Corcentric sells managed AP that combines its own AP automation software, a payments network, and a team that runs the process. It also markets payment-funded pricing, where rebates from electronic payments help offset the cost, so it's worth asking how that works for your payment mix.
6. GEP
GEP focuses on source-to-pay technology and managed services, and AP usually comes inside a larger procurement program. If you mainly need invoice processing, confirm the specific AP tasks in scope before you go deep with a procurement-led proposal.
How AP Outsourcing Provider Types Differ
Most providers sit somewhere between two choices: who does the work, and how much of finance they cover. This map shows where each type usually lands.
Which Type of Provider Fits Your Situation?
| Your situation | Provider type to look at | What matters most |
|---|---|---|
| Large, multi-country finance operation | Enterprise finance BPO | Global delivery, controls, ERP fit |
| AP plus purchasing and supplier management | Procure-to-pay or source-to-pay provider | Procurement integration and payment ownership |
| Want staff and software from one vendor | Managed AP provider | Exception handling, reporting, exit terms |
| Need extra hands for a backlog or busy season | Virtual AP or project support | Flexibility and turnaround time |
| Want to keep AP in-house with less manual work | AP automation software | Invoice capture, matching, approvals, and visibility |
Not sure outsourcing is right at all? Our guide to accounts payable outsourcing covers when it makes sense, what it costs, and what to keep in-house.
How to Score AP Outsourcing Companies
Give each provider the same scope and volume, then score them on weighted criteria. Weights force you to decide what matters before the sales demos start.
| Criteria | What you're checking | Weight | Provider A | Provider B |
|---|---|---|---|---|
| Service scope | Covers the tasks you actually need | 25% | 4 | 3 |
| Controls and security | Vendor change checks, payment separation, SOC 1 and SOC 2 reports | 20% | 3 | 5 |
| System fit | Works with your ERP or accounting system | 20% | 5 | 4 |
| Visibility and reporting | Real-time status, not just a monthly report | 15% | 3 | 4 |
| Total cost | All-in monthly cost at your volume | 10% | 4 | 3 |
| Transition and exit | Onboarding plan and how you get your data back | 10% | 2 | 4 |
| Weighted score | 100% | 3.65 | 3.85 | |
In this example, Provider A wins on scope, systems, and price. Provider B still comes out ahead because it's stronger on controls and exit terms, which carry real weight. Adjust the weights to match your own risks.
How AP Outsourcing Companies Charge
Most providers don't publish prices. Quotes usually follow one of these models: per invoice, per transaction, per dedicated employee (FTE), a monthly retainer for a set volume, or a mix with a base fee plus extras.
The headline rate can mislead. Here's a hypothetical comparison at 2,000 invoices a month with a 15% exception rate.
To compare quotes fairly, ask every provider to price the same list: implementation, data migration, integrations, PO and non-PO invoices, exceptions, vendor support, payment support, reporting, extra entities, volume changes, and exit support. Then add the time your own staff will still spend on approvals and oversight. To see what AP costs you today, use the AP cost calculator.
Questions to Ask AP Outsourcing Companies
Ask these in writing and compare the answers side by side.
| Area | Questions |
|---|---|
| Scope | What's in the base fee? What stays with our team? How do you handle non-PO invoices and vendor calls? |
| Technology | Which ERPs do you support natively? How do you catch duplicates? Can we see invoice status in real time? |
| Controls | Who can change vendor bank details, and how is each change verified? Who prepares and who releases payments? |
| Security | Can we see your SOC 1 Type II and SOC 2 Type II reports? Where is our data stored? Do you use subcontractors? |
| Service levels | What cycle time and accuracy do you commit to? What happens when you miss them? |
| Transition | How long does onboarding take for a company our size? How are open invoices handled during the switch? |
| Exit | How do we get our data and open items back if we leave, and what does that cost? |
Red Flags When Comparing AP Providers
- Vague scope. The proposal doesn't say which tasks are theirs and which are yours.
- Fuzzy payment authority. They can't say clearly who approves, prepares, and releases payments.
- No audit reports. They won't share a SOC 1 or SOC 2 report, or the report is years old.
- Canned demos. They can't walk through invoices and exceptions that look like yours.
- Speed claims with no SLA. Promises about turnaround that aren't tied to a measured target and a penalty.
- Hidden fees. Exceptions, rush payments, and reports priced separately and buried in an appendix.
- No exit plan. No clear process for returning your data, vendor records, and open invoices.
How to Run the Selection
- Write your scope. List every AP task and mark it yours, theirs, or shared. Documented accounts payable procedures make this much faster.
- Measure today's workload. Invoice volume, vendors, exception rate, cycle time, and cost per invoice.
- Decide what stays in-house. At minimum, vendor bank changes, approval authority, and payment release.
- Shortlist by type. Use the map and fit table above to pick three or four providers.
- Send the same brief to each. Same volume, scope, systems, and reporting needs, so quotes are comparable.
- Score with weights. Use the scorecard and normalize every quote to an all-in monthly cost.
- Test with real invoices. Have finalists process a sample of your normal invoices and exceptions.
- Pilot before full rollout. Start with one entity or vendor group, then expand.
If the scoring shows your real gap is manual work, not people, put AP automation software on the shortlist too. Our guide to accounts payable automation explains how it compares.
Frequently Asked Questions
There isn't one best provider. Enterprise BPO firms fit large, complex operations. Managed AP providers fit companies that want staff and software from one vendor. The best choice is the one that scores highest against your own weighted criteria.
Most don't publish prices. Quotes are per invoice, per FTE, a monthly retainer, or a mix. Compare the all-in monthly cost at your volume, including exceptions, setup, and extras.
Yes. Smaller firms and virtual AP providers offer remote staff for lower volumes. Many large BPO firms have minimum contract sizes that won't suit a small company, so ask about minimums early.
The terms overlap. Managed AP usually means a provider runs defined parts of AP on its own technology under service levels. Outsourcing can also mean staff working in your systems. Compare the written scope, not the label.
Yes. Some teams use automation software for capture, matching, and approvals, and an outside team for vendor calls or exception work. It works when roles, system access, and payment authority are clearly split.
No. Quick Payable is Salesforce-native AP automation software. It's an alternative for teams that want to keep AP in-house and cut manual work. If you need outside staff to do the work, choose a provider that offers that service.
Shyam Agarwal is a technology professional with 12+ years of experience in Salesforce consulting, development, and administration. He writes about accounts payable, AP automation, and Salesforce, drawing on his experience delivering scalable technology solutions that support business needs and improve operational efficiency.