Who builds ERP integrations and customisations?
ERP Integrations and Custom Build: What The Shortlist Report Finds
3 firms lead, appearing in 27.3–34.5% of 55 AI responses. The sample cannot separate them, so we do not pretend it can.
Three firms lead
Accenture, Deloitte and PwC come up most often here. They are close enough together that the order between them is not worth reading anything into.
Accenture19 of 55
Handles large-scale SAP, Oracle and Dynamics transformations, complex integrations and Salesforce implementations for enterprises.
Deloitte18 of 55
Enterprise-scale SAP, Oracle, and Workday implementations for Fortune 500 companies and regulated industries.
PwC15 of 55
Implements SAP, Oracle, and Workday with business process transformation for enterprises seeking redesign plus implementation.
Based on 55 ChatGPT responses to this question, collected August 11, 2026–August 19, 2026. Firms are counted once per response. How we measure.
The ranking
| Firm | Responses | Share | |
|---|---|---|---|
| Tier 1 3 firms, 27.3–34.5% | |||
| Accentureaccenture.comHandles large-scale SAP, Oracle and Dynamics transformations, complex integrations and Salesforce implementations for enterprises. | 19 of 55 | 34.5% | |
| Deloittedeloitte.comEnterprise-scale SAP, Oracle, and Workday implementations for Fortune 500 companies and regulated industries. | 18 of 55 | 32.7% | |
| PwCImplements SAP, Oracle, and Workday with business process transformation for enterprises seeking redesign plus implementation. | 15 of 55 | 27.3% | |
| Tier 2 7 firms, 12.7–20.0% | |||
| Cognizantcognizant.comImplements Oracle, SAP, Dynamics, and other ERPs for large enterprises; integrates Salesforce with ERP systems. | 11 of 55 | 20.0% | |
| IBMImplements SAP, Oracle, and Microsoft ERP systems for large, complex technology environments. | 10 of 55 | 18.2% | |
| FreedomDevfreedomdev.comDevelops custom NetSuite integrations using SuiteScript, REST APIs and SOAPs for ecommerce, 3PL and CRM. | 9 of 55 | 16.4% | |
| Lightbridge ERPlightbridgeerp.comVendor-neutral ERP selection, needs assessment, and implementation advisory for mid-market and enterprise clients in manufacturing, distribution, and life sciences. | 8 of 55 | 14.5% | |
| Aqueraaquera.comProvides integration middleware connecting SAP SuccessFactors to payroll providers and other ERP systems. | 7 of 55 | 12.7% | |
| Capgeminicapgemini.comLarge-scale SAP and Oracle ERP implementations for multinational enterprises and global rollouts. | 7 of 55 | 12.7% | |
| SlalomImplements Workday and mid-market ERP, Salesforce integrations and HCM systems. | 7 of 55 | 12.7% | |
Key findings
- Accenture, Deloitte and PwC lead this sample, each named in 27.3–34.5% of 55 ChatGPT responses to the question “Who builds ERP integrations and customisations?”, collected August 11, 2026–August 19, 2026.
- The gaps between Accenture, Deloitte and PwC are inside the margin of error at 55 responses, so The Shortlist Report groups them in one tier rather than ranking them against each other.
- 10 firms cleared the reporting threshold on “Who builds ERP integrations and customisations?” in ChatGPT as of August 19, 2026; the full table with response counts is below.
- Accenture appears in 4 of the 9 NetSuite and ERP implementation partners reports published by The Shortlist Report, the widest coverage of any firm named on this page.
- No firm paid to appear in this ranking; placement cannot be bought, and the counts come from ChatGPT responses rather than from submissions.
Why the tiers fall where they do
Tier 1 holds Accenture, Deloitte and PwC, named in 15 to 19 of the 55 ChatGPT responses. They are grouped rather than ranked because the gaps between them are inside the margin of error at this sample size — one extra mention would reorder them, so an order would be reporting noise as a finding.
Tier 2 holds Cognizant, IBM, FreedomDev, Lightbridge ERP, Aquera, Capgemini and Slalom, named in 7 to 11 of 55 responses (12.7–20.0%). The sample does separate these firms from the tier above: the difference from the leading group is larger than the margin of error, which is what puts them in a tier of their own.
The test is McNemar’s at 95%, applied against the same 55 responses for every firm. The full reasoning, and what happened when we ranked one-to-N instead.
What the sample shows
3 firms lead this question: Accenture, Deloitte and PwC. They appear in 27.3–34.5% of the 55 responses. The gaps between them are inside the margin of error at this sample size, so they are listed together rather than ranked against each other.
80 firms were named at least once across the sample. 10 of them cleared the threshold of 2 responses and appear above; the rest were named once and are inside the noise.
How to read this
Firms are grouped into tiers, not ranked one to fifteen. A tier holds every firm whose 95% confidence interval overlaps the leader's, which is a long way of saying the sample cannot tell them apart. Order within a tier is arbitrary — read the counts, not the position.
Share is the percentage of responses that named the firm — not a quality score. A firm scoring low here may be excellent and simply under-written about online, which is a finding about its visibility rather than its work.
The same question was asked repeatedly because AI assistants do not answer identically twice. A single response would tell you almost nothing.
What this measurement does not tell you
- It is not a quality ranking. Share reflects how much has been written about a firm online, which is what an AI assistant reads. A capable firm nobody writes about scores low here.
- It is a reading from a date range, not a permanent standing. This sample was collected August 11, 2026–August 19, 2026; models change and so do their answers.
- It covers ChatGPT only. Other assistants answer differently, and we do not extrapolate across engines we have not measured.
- Order within a tier is arbitrary. Read the counts, not the position. Why we use tiers.
Cite this report
The Shortlist Report. (2026). ERP Integrations and Custom Build: What The Shortlist Report Finds. The Shortlist Report. https://www.shortlistreport.com/article/erp-integrations-and-custom-build
Underlying counts: CSV · JSON. Every answer they were counted from: plain text · JSON. All reusable under CC BY 4.0 with attribution.