PSA Vendors List | Best PSA Software Vendors | Vendors for PSA Systems

Last reviewed: July 10, 2026

Find vendors for PSA software with our guide to the best PSA system vendors and providers. We compare PSA vendors such as Sage, Workday, Microsoft and more.

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Professional Services Automation Software Vendors

PSA Vendors

Which software vendors provide PSA systems and professional services automation software? Here we discuss some of the best known and most popular vendors for PSA solutions.

We cover some of the most popular PSA software vendors such as SAP, Oracle & Microsoft, as well as lesser known PSA vendors.

What is Professional Services Automation (PSA)?

Professional services automation (PSA) software integrates project management, resource management, time recording, billing and invoicing, and human capital management into a single system. It streamlines the operations of legal, consulting, marketing, IT and other professional services firms by connecting the work you sell with the people who deliver it and the invoices you raise for it. The PSA software market was expected to grow from £550M in 2017 to £950M by 2022, demonstrating that professional services automation tools can provide IT consultancies, marketing agencies and legal firms a competitive edge.

Benefits of PSA Software

By integrating these functions, leaders in professional services firms are able to automate processes and improve key metrics within their businesses. Typically, by correctly implementing and using a professional services automation tool, businesses can improve resource utilisation, improve cash flow and revenues, plus increase profits.

For example, imagine you are running an IT consultancy firm. With a professional services automation system in place, you can create opportunities when a client asks you to bid for an RFP, ensuring you retain enough margin to remain profitable. You can then estimate the costs for your proposal and check you have the right consultants and project managers in place, as well as ensure that any software or hardware necessary can be purchased and paid for. Once you win the business, you can track every step of the project, as well as all costs, and bill the client accurately and on time. According to a survey, a mid-size (173 employees) professional services organisation reported an expected ROI of £18M over five years by adopting a PSA tool.

What PSA Software Includes

PSA tools come in many flavours. Most PSA systems include at least project management, timesheets and billing, however others can offer more robust functionality covering financial management and accounting, customer relationship management (CRM), payroll and human capital management to provide an end-to-end process flow. For a full feature comparison, see our guide to the best professional services automation software.

Who Uses PSA Software

PSA systems are now used by firms in many project-based industries including:

Architecture & Construction
Environmental Consultancy
Information Technology Consultancies, SaaS & Managed Service Providers (MSP)
Marketing, Advertising & Communications
Management Consultancies
Legal & Law Firms

Many of these firms evaluate PSA alongside broader business systems — our professional services ERP hub explains where the two markets overlap.

List of PSA Vendors:

Workday
SAP
Acumatica
FinancialForce
Sage
Microsoft
Oracle
IFS

psa vendors

Best PSA Vendors

Top 10 Professional Services Vendor Report

Get our free in depth comparison of the Top 10 Professional Services Automation solutions available on the market including Netsuite, Acumatica, Oracle, SAP and more.

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Acumatica

PSA Vendors

Acumatica

Acumatica is well suited to organisations in the oil & gas space due to its focus on billing and people centric business processes. As a Cloud PSA solution, Acumatica provides financial management, billing and human resources with a low up front investment.

Microsoft

Microsoft is a household name for its Microsoft Office and 365 product set, but Microsoft is also one of the worlds largest software vendors with business management and PSA products including Microsoft Dynamics and Business Central.

PSA Vendors

Microsoft Business Central

Microsoft Business Central provides small and medium sized businesses with finance and accounting, project management and sales capabilities to allow them to streamline their operations.

PSA Vendors

Microsoft Dynamics 365

Microsoft has heavily invested in its Services Industry Cloud in recent years and this extends the core capabilities of Microsoft Dynamics 365 to add professional services industry specific capabilities to its ERP offering which covers sales, finance, operations, service and more.

SAP

SAP is one the worlds largest business software vendors with over 400,000 customers around the world. SAP provides ERP and professional services automation software to businesses of all sizes.

PSA Vendors

SAP Business One

SAP Business One has been selected as the chosen PSA solution of many small and midsized oil and gas companies. SAP Business One PSA features integrated capabilities for companies including finance, human resources, billing, asset management and CRM and sales order management.

PSA Vendors

SAP Business ByDesign

SAP Business ByDesign is a Cloud software solution which is used by many companies in the professionals services industry. With strong integrated functionality plus localisations in more than 80 countries, SAP Business ByDesign caters for growing professional services companies without huge investment.

PSA Vendors

SAP S/4HANA

SAP S/4HANA is a Cloud solution which can manage projects, finance and accounting, sales and more in one scalable platform which is easily localised in dozens of countries.

Infor

Infor is a software vendor that sells ERP & PSA solutions to manufacturing and other product based companies.

PSA Vendors

Infor CloudSuite Industrial

PSA Vendors

Infor M3

PSA Vendors

PSA Software Requirements Template

Kickstart your professional services automation evaluation using our PSA requirements checklist which comes prepopulated with the top professional services automation system requirements.

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Oracle

Oracle is the second largest software vendor in the world, providing PSA software to hundreds of thousands of organisations in multiple industries. Oracle also provides business applications and software services including HRIS, CRM and more.

Professional Services Automation Vendors

Oracle Netsuite

Oracle Netsuite includes powerful PSA capabilities alongside its ever expanding set of functionality. Netsuite users benefit from project management, commercial projects, human resources, billing and more in one scalable platform.

Professional Services Automation Vendors

Oracle ERP Cloud

Oracle ERP Cloud is used by some of the largest professional services and project based organisations in the world. It's Prima Vera project management solution is considered a world leader in the space.

Odoo

Professional Services Automation Software Vendors

Odoo

Odoon is a Cloud ERP solution which is used by many companies in the oil and gas industry. With strong integrated functionality plus localisations in more than 80 countries, Odoo caters for growing oil and gas companies without huge investment.

Sage

Professional Services Automation Software Vendors

Sage X3

Sage X3 by ERP software vendor Sage is an enterprise resource planning solution suitable for small to medium sized businesses in the manufacturing, professional services and distribution industries. Sage X3 is available both in the Cloud and On-Premise.

Professional Services Automation Software Vendors

Sage Intacct

Sage Intacct is well suited to organisations in the oil & gas space due to its focus on billing and people-centric business processes. As a Cloud ERP solution, Sage Intacct provides financial management, billing and human resources with a low upfront investment.

Workday

Professional Services Automation Software Vendors

Workday

Workday has become a popular choice for large and growing oil and gas organisations looking for ERP capabilities including billing, financial management and best of breed human resources in one place. The vendor focuses on customer satisfaction and a slick user interface.

Unit4

PSA Software Vendors

Unit4

Unit4 is well suited to organisations in the oil & gas space due to its focus on billing and people centric business processes. As a Cloud ERP solution, Acumatica provides financial management, billing and human resources with a low up front investment.

How to Choose a PSA Tool

Choosing PSA software for your firm can be a challenging process. With several solutions available on the market and each vendor fighting for market share, it can be hard to know who to trust and which solution best fits your business. At ERP Research, we help organisations to find new PSA tools every day, and we recommend evaluating PSA tools based on the following criteria:

Functionality: does the software do what your business needs it to?
User Experience: is the solution intuitive and easy to navigate for users?
References: are peers within your sub-sector of a similar profile using the solution?
Budget: does the solution meet your budget and provide a significant ROI?
Roadmap: is the software vendor committed to delivering new functionality in the future?

For a more detailed overview, use our ERP & PSA vendor selection checklist.

Professional Services Automation (PSA) Vendor FAQ

What is a PSA Vendor?

Professional services automation software vendors are companies that develop and publish PSA software products. Examples of PSA vendors include the likes of Sage, FinancialForce, SAP, Workday, Acumatica and Infor.

Which is the best PSA vendor?

The best PSA vendor for your business will be different to the best PSA vendor for another.

There is no one best PSA vendor as many PSA vendors cater to different industries, company sizes and more.

As a rule of thumb, for organisations with large ambitions and more than 200 employees, a larger PSA vendor such as Microsoft, Netsuite, Oracle or SAP will be the best PSA vendor.

For smaller organisations, often a smaller PSA vendor is the best fit such as Acumatica, Odoo, Sage and others.

Who are the major PSA vendors?

The major PSA vendors are Workday, Acumatica, SAP, Oracle, Microsoft, Netsuite and Sage.

What does PSA mean in software?

PSA stands for professional services automation. In software, PSA refers to systems that combine project management, resource planning, time and expense recording, and billing so professional services firms can manage client engagements from opportunity through to invoice in one place.

What is the difference between PSA and ERP?

Enterprise resource planning (ERP) and professional services automation can be both complementary or interchangeable systems. In some cases, niche professional services automation tools are integrated into classic ERP or accounting systems. In others, professional services solutions take on the same core responsibilities as an ERP such as accounting.

Whilst there may be benefits to running a PSA system alongside a traditional ERP system, a truly integrated ERP with PSA functionality provides the greatest level of integration and financial visibility into the business.

ERP Project Resources & Templates

PSA Vendors

ERP & Professional Services Automation Implementation Project Plan Example

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Best PSA Vendors

PSA Requirements Gathering (RFI, RFP) Template Excel

Start your PSA or ERP evaluation process with our RFI & RFP Excel template.

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Vendors for PSA

PSA Project Budget Calculator Template

Calculate the costs of your oil and gas ERP project with our prebuilt budget calculator.

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Compare the vendors mentioned in this article

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