AP automation for mid-sized companies

AP software for mid-market companies tired of chasing approvals

Built for growing finance teams, Rillion uses AI to capture invoices, match them against POs, and route approvals automatically. Get real-time visibility across every entity and location, cut manual data entry, and strengthen vendor relationships with faster, more accurate payments.

Rillion is trusted by finance leaders at 30,000+ mid-sized and large organizations

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Features finance teams dream about

AP automation software that fits how mid-market companies work

AI-native invoice capture

Extract data from all invoice formats with over 95% accuracy and completely eliminate manual entry. The format doesn’t matter. PDFs, email, and scanned paper can all be used for invoice processing.

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Automated coding

Rillion’s AI remembers patterns and suggests the right GL code based on your past entries, becoming more effective over time.

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Accurate 3-way PO matching

Invoices are matched against POs and receipts in seconds so your team catches errors early instead of chasing them after payment.

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Automated approval workflows

Route every invoice to the right approver using your own rules or AI predictions. Approvers get automatic reminders and can approve from desktop or mobile, so invoices don't sit stuck in someone's inbox.

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50+ ERP integrations

Connect directly with NetSuite, Dynamics, Sage, SAP, and more to eliminate double entry and speed up reconciliations.

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Multi-entity management

Manage invoices, approvals, and vendor payments across every entity, branch, or location in one system, while each keeps the local flexibility it needs.

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Built-in audit trails

Every invoice is searchable and traceable, so you're always audit-ready and never waste a moment digging through inboxes or spreadsheets.

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Real-time visibility

Get a live view of your finances. Track supplier costs, departmental budgets, and location-level spend with dashboards built for fast decisions.

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Complete compliance

Role-based approvals and SOC 2-compliant infrastructure protect your data and keep sensitive financial information secure as you scale.

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Key benefits

Reap the rewards of AP automation for mid-market companies

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Process invoices 85% faster

Speed up your entire invoice lifecycle with AI-powered capture and routing. Approve faster, pay on time, and never miss an early-payment discount again.

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Cut mistakes by 97%

Rillion’s fully automated PO matching and sophisticated functionality wipes out human mistakes, avoiding costly disputes and compliance risks.

Flexibility

Grow 100% flexibly

Rillion grows as you do. Our software is highly customizable for multi-entity management and streamlined approvals.

How does AP automation for mid-market companies work?

Capture every invoice with AI

Growing companies receive invoices in every format imaginable, whether it’s paper, PDFs, email attachments, or XML and EDI feeds.

Rillion's AI-native capture uses LLM technology to read these invoices the way a person would, extracting every key detail at both header and line level: supplier data, reference numbers, line items, amounts, and tax information. Unlike template-based OCR, it works from the very first invoice with over 95% accuracy, validates each value against your master data, and flags only the exceptions that need a human eye. That means fewer manual entry errors delaying payments and straining all-important vendor relationships.

Code and route automatically

Once captured, the system acts on the data. AI applies the right GL codes and cost centers, then routes the invoice to the correct approver or exception handler. Busy finance teams can review and approve from any device, while automated reminders keep invoices moving.

Match with purchase orders and contracts

Rillion cross-checks invoices against purchase orders, contracts, and delivery receipts to catch discrepancies before they cost you. When everything matches, the invoice flows straight through to your ERP. If there's a mismatch it's flagged and routed to the right workflow, so your team only spends time on real exceptions.

Pay suppliers securely and on time

With approvals and matches in place, invoices move seamlessly to payment. Virtual cards replace slow, manual check runs, cutting fraud risk and easing staff workload (plus every card payment earns a rebate). A full audit trail archives every transaction, so you're always ready for internal or external review.

Learn and improve continuously

Every cycle makes the system smarter. AI adapts to new invoice formats, improves coding accuracy, and predicts approval workflows more precisely over time. Finance leaders get real-time visibility into spend, vendor performance, and cash flow across every entity and location. Your AP process only gets faster, more accurate, and more strategic over time.

Tired of juggling the AP process by hand?

Mid-market finance teams have enough to worry about, with Rillion AP isn’t one of them.

Smart 3-way matching

Automatically reconcile invoices against POs and delivery receipts, catching price variances, partial shipments, and duplicate charges before they get the chance to cost you.

Real-time spending visibility

Get full control over spend with live visibility into supplier costs, department budgets, and location-level expenses, so nothing eats into margin unnoticed.

Secure & compliant system

Rillion is SOC 2 compliant with role-based access and full audit trails.

50+ ERP integrations

Connect your invoice processing with your ERP system with our 50+ ERP integrations.

Easy to set up

Our customer success team supports you through the onboarding process and Rillion is intuitive to use.

Unlimited users, no extra cost

We price by invoice volume, not per user, so you can add as many approvers and team members as you need without paying more.

Three reasons why mid-market companies trust Rillion for AP automation

1. Manage high volumes of invoices

Our AI-native invoice capture enables you to manage hundreds of invoices a day without adding headcount.

2. Centralize your invoices

Consolidate AP across every entity, branch, or location in a single system for full transparency and easy multi-entity management.

3. Accelerate approvals

Use our intelligent routing and mobile approvals to speed up your payment workflows for a month-end that won’t have you sweating.

Testimonials

What our customers say

"With our contracts being matched to vendor invoices for over 300 locations, Rillion has reduced our manual workload and really optimized our AP operations."

Carrie Self, CPA, Tacala

"95% of electricity invoices are auto-approved now. That’s thousands of invoices each month that no one has to touch."

Timo Aula, Manager of Order to Cash and Purchase to Pay
Read case

"What was important to us was the ease of use and the fact that Rillion’s AI didn’t come with any extra integrations. The AI is built-in, so it learns on its own over time with the help of Rillion’s invoice data, and we don’t have to separately export data to the system. Implementing Rillion AI was the easiest implementation ever!"

Jouko Peltonen, Senior System Manager, Technopolis

"I like that with Rillion you see a pie chart of the expenses. So each month I can see that at a quick glance."

Nikki Milian, Accounting Manager, Smiles First

"What Rillion provides is great for what I need, and it has all the tools that I need in order to process all invoices and get them approved in line with my project managers and my account payables."

Adrian Galvin, VMG Construction
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Ready for the next step?

Automate your mid-market AP process today

Go from disconnected systems, manual invoice processing, and payment chaos to a centralized, easy to use system.

Mid-market companies winning with Rillion AP automation

See how mid-market companies worldwide are improving and automating AP with Rillion’s AI.

Your questions answered

Accounts payable software for mid-market companies FAQs

What is AP automation for mid-market companies?

AP automation uses AI to capture, code, route, and approve invoices automatically, cutting the manual work that slows down growing finance teams.

How is AP automation different from what my ERP already offers?

Most ERPs handle posting but not the heavy lifting before it. Rillion adds smart capture, flexible approval routing, and PO matching, then syncs directly with your ERP.

How long does it take to implement AP automation software?

Most mid-market teams go live in weeks, not months. Our onboarding team handles ERP setup, data validation, and workflow configuration alongside you.

Does AP automation work with my existing ERP?

Yes. Rillion integrates with 50+ ERPs, including NetSuite, Microsoft Dynamics, Sage, and SAP, so you avoid double entry and keep data in sync.

Can AP automation handle multiple entities or locations?

Yes. Rillion centralizes invoices, approvals, and spend visibility across every entity or location while letting each keep its own workflow.

Is AP automation software secure?

Yes. Rillion is SOC 2 compliant and uses role-based access, encryption, and full audit trails to keep every invoice traceable.

What kind of ROI can mid-market companies expect from AP automation?

Teams typically process invoices faster, cut coding errors, and free up staff time for higher-value work. Plus Rillion Pay adds rebate revenue on card payments.