Company lists · Data refreshed September 2026

Top 25 Ap software companies worldwide

RevenueBase identified 473 ap software companies worldwide as of September 2026 and tracks 18,052 professional contacts across them, including 6,539 with verified work emails. The United States is the largest market and London the largest hub.

This list covers ap software companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for ap software companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
473Companies
18,052Contacts tracked
6,539Verified emails
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The 25 largest ap software companies worldwide

Ranked by team size
Top 25 of 473 ap software companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to ap software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceCharlotte, NC, United StatesHQ checked Sep 21, 20261,001-5,0001,810 contacts →

Partial evidence

“AvidXchange is the AI-powered accounts payable (AP) and payments solution built for mid-market businesses.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceNashville, TN, United StatesHQ checked Sep 21, 2026501-1,000833 contacts →

Indirect evidence

“If you’re a finance pro ready to transform accounts receivable, or a bold thinker looking to do meaningful work, Billtrust is where you belong.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceLinköping, SwedenHQ checked Sep 21, 2026501-1,000784 contacts →

Partial evidence

“Medius links invoice capture, processing, and payment to replace the worry and wondering of managing AP with calm and confidence.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 21, 2026201-500418 contacts →

Indirect evidence

“We’re hiring!”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceSão Carlos, BrazilHQ checked Sep 21, 2026201-500389 contacts →

Indirect evidence

“A Qive é a plataforma líder do contas a pagar para empresas que focam em consistência, governança e escala em sua gestão financeira.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidencePlano, TX, United StatesHQ checked Sep 21, 2026201-500359 contacts →

Indirect evidence

“Payments shouldn’t live outside your business systems.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 2026501-1,000359 contacts →

Strong evidence

“Leading AP automation software | Reduce processing cost by 90%| For large and mid-sized companies | Our customers include DHL, Danone, HSBC, Kuehne + Nagel, and Air France KLM.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceMountain View, CA, United StatesHQ checked Sep 21, 2026201-500343 contacts →

Indirect evidence

“Stampli helps finance teams achieve stress-free finance by through a Procure-to-Pay solution that works for you.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 21, 2026501-1,000304 contacts →

Partial evidence

“Here at Aptitude, we provide software solutions to enable deliver fully autonomous finance so our customers can drive growth, efficiency and sustainability.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceEspoo, FinlandHQ checked Sep 21, 20265,001-10,000300 contacts →

Partial evidence

“As part of GEP, a global leader in AI-driven procurement and supply chain solutions, we deliver e-invoicing, O2C and P2P messaging, AP automation and advanced procurement…”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidencePlano, TX, United StatesHQ checked Sep 21, 2026501-1,000298 contacts →

Partial evidence

“At Circulus, we provide Product and Service Offerings designed to Optimize, Augment, and Automate AP Processes.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceBielefeld, GermanyHQ checked Sep 21, 2026201-500216 contacts →

Partial evidence

“Diamant Software GmbH & Co.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceAhrensburg, GermanyHQ checked Sep 21, 2026201-500208 contacts →

Indirect evidence

“xSuite delivers Agentic Accounts Payable Automation for SAP-Driven Enterprises.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceDenver, CO, United StatesHQ checked Sep 21, 2026201-500182 contacts →

Partial evidence

“Traild is a deeply integrated Accounts Payable solution focused on twin issues, AP efficiency and Financial Control.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceStockholm, SwedenHQ checked Sep 21, 202651-200180 contacts →

Partial evidence

“We’re on a mission to simplify AP and payment processes and make them (actually) enjoyable.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceVancouver, BC, CanadaHQ checked Sep 21, 202651-200175 contacts →

Indirect evidence

“Procurify is the agentic procurement platform for finance and operations teams that understands your vendors, budgets, and policies.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceMiami, FL, United StatesHQ checked Sep 21, 202651-200172 contacts →

Indirect evidence

“PairSoft, one of the strongest financial automation platforms for mid-market and enterprise organizations, comprises a product lineup that natively integrates with Microsoft…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceEcht, NetherlandsHQ checked Sep 21, 202651-200160 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceLondon, United KingdomHQ checked Sep 21, 202651-200150 contacts →

Strong evidence

“ApprovalMax is AP approval software for finance teams using Xero, QuickBooks Online, and NetSuite.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceWitney, United KingdomHQ checked Sep 21, 202651-200130 contacts →

Indirect evidence

“Webexpenses is a leading provider of Expense Management, Invoice Processing, and Payments solutions, helping businesses of all sizes across 70+ countries streamline processes and…”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 21, 202651-200124 contacts →

Indirect evidence

“Since 1994, DataServ has delivered Accounts Payable invoice automation solutions that enable accounting teams to eliminate data entry, increase accuracy, and focus on higher-value…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceVienna, AustriaHQ checked Sep 21, 202651-200120 contacts →

Partial evidence

“Enterprise AP Automation for Complex, Global Finance Operations Most AP automation handles the easy invoices.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceBerlin, GermanyHQ checked Sep 21, 202651-200118 contacts →

Indirect evidence

“With Candis, you'll realize how relaxed invoice management can be.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceStavanger, NorwayHQ checked Sep 21, 202651-200115 contacts →

Indirect evidence

“Eye-share helps mid-sized and enterprise companies take control of their accounts payable and purchase-to-pay processes through AI-powered automation.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceFalls Church, VA, United StatesHQ checked Sep 21, 202651-200108 contacts →

Partial evidence

“Nexus, a Bottomline Technologies company, provides the only AP & Payments Automation Platform built specifically for Real Estate.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 473 ap software companies worldwide

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Ap software companies worldwide at a glance

As of Sep 21, 2026
36.2%Verified-email coverage
38.2Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
182
11-50
174
51-200
82
201-500
13
501-1,000
9
1,001-5,000
8
5,001-10,000
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ap software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for ap software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “ap software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ap software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among ap software companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 6,539 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Ap software companies by location

2 lists · largest first

Every Ap software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ap software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many ap software companies are there worldwide?

RevenueBase identified 473 ap software companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Avidxchange, INC, headquartered in Charlotte, tops this list with the largest team on record.

Which country has the most ap software companies?

The United States leads with 139 companies, followed by Brazil (34). Every ap software companies list by country and city is linked on this page.

Which city has the most ap software companies?

London leads with 9 headquartered companies, followed by Toronto (9) and Madrid (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,539 verified decision-maker contacts tracked across these 473 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.