Decide whether you need job tracking or full MES first
Some tools on this list are narrow: barcode-based labor and job tracking, nothing else. Shop Floor Insight and Standard Time fit here, both aimed at smaller operations that need WIP visibility without a full manufacturing operations management deployment. Others, like Siemens Opcenter Execution and MPDV HYDRA X, are modular MES/MOM suites where job tracking is one module among several (quality, scheduling, logistics). If you buy the suite for job tracking alone, you're paying for modules you may not use yet. Decide which category you're in before you take a single demo call.
Match deployment model to your IT constraints
Deployment is documented for most vendors here: cloud-only (Tulip, Autodesk Fusion Operations, Plex, L2L, QAD Redzone, 42Q, Shop Floor Insight, Pico MES), hybrid (Epicor Advanced MES, MPDV HYDRA X, Siemens Opcenter Execution, Aegis FactoryLogix, Critical Manufacturing, iTAC.MOM.Suite, Standard Time). None on this list is documented as on-premise only. If your plant has no reliable floor-level internet or a policy against cloud-hosted production data, hybrid options give you a fallback; cloud-only vendors don't.
TODO(editor): verify whether any cloud-only vendor here (Tulip, Plex, QAD Redzone, 42Q) offers an on-prem or edge component not captured in the listing before stating flatly that none do.
Size the vendor to your company, not the other way around
Target company size is stated for eight of the fifteen: smb (Autodesk Fusion Operations, Shop Floor Insight, Standard Time, Pico MES), mid (Epicor Advanced MES, Plex, L2L, QAD Redzone, 42Q, MPDV HYDRA X, Aegis FactoryLogix), enterprise (Siemens Opcenter Execution, Critical Manufacturing, iTAC.MOM.Suite). A 20-person shop evaluating Critical Manufacturing or iTAC is likely to hit implementation and support costs sized for a semiconductor fab, not a job shop. Conversely, a 500-person plant outgrowing Standard Time's per-user pricing should expect that model to get expensive fast, though the listing gives no seat-count threshold to calculate where.
No-code platforms like Tulip are built so operations staff, not IT, build and edit shop floor apps. Full MES suites (Siemens Opcenter, MPDV HYDRA X, iTAC.MOM.Suite) typically need a dedicated administrator or integrator, though none of these listings detail admin staffing requirements directly. If you don't have a person who can own MES configuration, weigh that against a narrower job-tracking tool that needs less care.
TODO(editor): confirm with each MES vendor (Siemens, MPDV, iTAC, Critical Manufacturing) whether implementation typically requires a systems integrator, and note that in the comparison rather than inferring it.
Check what it has to talk to before you sign
ERP and PLM integration is mentioned for several vendors (Epicor's Data Exchange module, Aegis FactoryLogix's ERP/PLM connectivity, MPDV's MIP integration platform) but described only in general terms, without naming the specific systems each supports. iTAC's listing states no integration details are given at all. If your shop floor tool has to talk to a specific ERP, get that confirmed in writing before you evaluate anything else, because
