---
title: ONX Reviews
meta_title: 'ONX Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how ONX works for a business like yours.
date_modified: '2026-09-25'
parent_category:
  name: ERP
  url: https://www.g2.com/categories/erp
---


# ONX Reviews
**Vendor:** Optimal Nexus  
**Category:** [Professional Services Automation Software](https://www.g2.com/categories/professional-services-automation)
## About ONX
ONX is one system to run a people business: BPOs, consultancies, MSPs and staffing firms. ONX Core, with conversations, meetings, commitments, Decision Rooms and organisational memory, sits under every plan. Start with one outcome (Grow, Workforce or Run) and grow into the full operating system. Built in the UK, EU-hosted.






- [View ONX pricing details and edition comparison](https://www.g2.com/products/onx/reviews?section=pricing&secure%5Bexpires_at%5D=2026-09-25+06%3A18%3A30+-0500&secure%5Bsession_id%5D=4d52fa95-eb96-49a8-bc3e-4a90840bb553&secure%5Btoken%5D=0dbd5718c2c22d07cb1695ec96ac412a426ccfd4b7350442c805b1ab074ea056&format=llm_user)

## ONX Features
**Customer Management**
- Customer Profiles
- Sales
- Marketing
- Client Portal

**Project Management**
- Project Planning
- Project Tracking
- Resource Definition
- Resource Management
- Resource Allocation & Planning
- Progress Tracking
- Project Time Tracking
- Project Management

**Accounting**
- Revenue Recognition
- Invoice Management
- Payments
- Project Accounting
- Budget Tracking
- Time & Expense Tracking
- Activity Tracking
- Billable Items Tracking
- Document Management
- Multiple Projects

**Portfolio Management**
- Portfolio Definition
- Portfolio Performance
- Risk
- Portfolio Mix

**Analytics**
- Forecasting
- Reporting
- KPIs
- Real-Time Reporting

**Administration**
- Standard Integrations
- Workflow
- Access Management
- Email Management
- Workflow Management
- Task Management
- Portfolio Management
- Calendar Management
- Timesheet Management
- Accounting Integration
- Third-Party Integrations

**Platform**
- APIs
- Internationalization
- Performance and Reliability
- Mobile
- Offline Access

**Generative AI**
- AI Text Generation
- AI Text Summarization
- Proposal Generation
- Generative AI

**Artificial Intelligence - Professional Services Automation**
- Predictive Forecasting
- Smart task suggestions
- Automated workflows

**Agentic AI - Professional Services Automation**
- Adaptive Learning
- Proactive Assistance

**Additional Functionality**
- Activity Dashboard
- Gantt/Timeline View
- Quotes/Estimates
- Collaboration Tools
- Customizable Fields
- CRM
- AI Copilot
- Customizable Reports
- Performance Metrics
- Access Controls/Permissions
- Billing & Invoicing
- Approval Process Control
- Reporting & Statistics
- Project Templates
- Task Scheduling
- Real-Time Data
- Document Storage
- Drag & Drop

## Top ONX Alternatives
  - [Wrike](https://www.g2.com/products/wrike/reviews) - 4.2/5.0 (4,457 reviews)
  - [Keka](https://www.g2.com/products/keka/reviews) - 4.4/5.0 (2,147 reviews)
  - [BigTime](https://www.g2.com/products/bigtime/reviews) - 4.4/5.0 (1,749 reviews)