How to shortlist warehouse automation vendors

A structured process for moving from an open technology market to a shortlist of vendors who are genuinely suitable for your operation, without vendor-led bias.

8 min read · Vendor-agnostic

The shortlisting problem

The automation vendor market is large, fragmented, and actively marketed. Buyers who begin vendor engagement without a clear shortlisting process typically end up with a vendor-led evaluation rather than a buyer-led one. The result is a proposal comparison rather than a structured selection.

A structured shortlisting process defines your requirements first, identifies the technology category that matches your operation, evaluates the market independently, and arrives at a shortlist of two to three vendors who are genuinely suited to your context before any RFP is issued.

The target outcome of shortlisting

Two to three vendors who have been evaluated against your specific requirements, whose reference sites have been verified, and who have been informed of your evaluation criteria before they prepare their proposals. A shortlist is not a preferred vendor list. It is a structured set of qualified candidates for a competitive evaluation.

The shortlisting process in six steps

01 Define your technology category

Before evaluating vendors, confirm which automation category fits your operation. AMR, ASRS, GTP picking, automated packing, and conveyor systems have different vendor sets and different evaluation criteria. Evaluating across categories simultaneously creates confusion. Select the primary category first.

02 Document your requirements

Define your minimum technical requirements: throughput, payload, load type, floor plan constraints, WMS system, integration requirements, shift patterns, and safety requirements. These become the filter criteria for the longlist.

03 Build a longlist from independent sources

Research the vendor market independently: industry reports, trade association directories, and peer references from operations in similar sectors. Aim for 8-12 vendors at longlist stage. Do not rely solely on vendors who have approached you.

04 Apply minimum qualification criteria

Reduce the longlist to 4-6 vendors by applying minimum criteria: demonstrated installations in your sector, WMS integration track record with your system (or equivalent), minimum fleet size deployed, regional support capability, and financial stability indicators.

05 Conduct reference verification

For the 4-6 vendors remaining, contact reference sites independently. Verify the performance claims in vendor marketing materials against actual operational outcomes. This step alone typically reduces the list to 2-4 credible candidates.

06 Issue an RFI before an RFP

Issue a Request for Information to the 4-6 vendors before issuing an RFP. The RFI response quality reveals which vendors understand your requirements, have relevant experience, and can produce structured, professional responses. Use RFI quality as an additional filter before committing to a full RFP process.

What to ask reference sites

Reference verification is the most reliable source of information about vendor performance. Speak to operations managers at similar operations, not marketing contacts provided by the vendor.

Structure reference calls around specific performance questions rather than general satisfaction. The goal is to understand what the vendor promised, what they delivered, and where gaps exist.

What throughput are you achieving versus what was in the contract?
How long did implementation actually take?
What integration issues arose and how long did they take to resolve?
What is your actual system uptime?
Is vendor support responsive when you need it?
What would you have done differently in the procurement process?
Would you select this vendor again?

Red flags during shortlisting

References only in different sectors or geographies

A reference network that only shows implementations in unrelated industries or remote geographies cannot validate performance in your specific context. References should be comparable in sector, WMS, and operational profile.

Unable to provide WMS integration documentation

Any vendor shortlisted for your operation should be able to provide API documentation and, ideally, integration architecture documentation for your WMS. Inability to provide this at RFI stage is a significant concern.

Excessive pressure to accelerate the process

Legitimate vendors compete on capability and fit. Pressure to skip reference verification, shorten evaluation timelines, or commit to intent before the RFP stage is a commercial practice, not a sign of operational confidence.

Vague financials or unclear support model

If total cost of ownership, support SLA, and maintenance terms cannot be clearly articulated at RFI stage, they will be more difficult to negotiate at contract stage. Require transparency from the start.

RFP readiness checklist

Before issuing an RFP, confirm that the following elements are in place. An RFP issued without these foundations will produce proposals that are difficult to compare meaningfully.

Documented operational baseline (throughput, labour cost, space)
Defined minimum technical requirements
Independent business case with assumption documentation
Shortlist of 2-3 qualified vendors verified through reference check
Defined evaluation criteria and weightings for the RFP scoring
Clear timeline with milestones communicated to vendors
Internal project owner with budget authority confirmed

Issue the RFP to a maximum of three vendors. A larger RFP process requires disproportionate internal resource to evaluate fairly and produces longer vendor response lead times.

Vendor neutrality in evaluation

A structured shortlisting process protects the buyer from vendor-led bias. When requirements are defined before vendor engagement, the evaluation criteria cannot be shaped by the vendor with the strongest marketing presence or earliest access to your team.

Vendor neutrality is not about refusing to engage with vendors who approach you. It is about ensuring that all shortlisted vendors are evaluated on the same criteria, that no vendor has an information advantage, and that the evaluation is documented well enough to withstand internal audit or legal review.

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