Lot Bundling

Lot bundling sits at the opposite end of the spectrum from lot division. Where division breaks a contract into smaller, more accessible parts, bundling consolidates requirements into a larger package. Both approaches are legitimate tools in procurement design, but they carry very different implications for competition, market access, and delivery risk.

What is lot bundling?

Lot bundling occurs when a contracting authority groups multiple service lines, product categories, or geographic areas into a single lot rather than separating them. The result is a larger, more complex requirement that typically demands broader capability from bidders.

Bundling can happen at the design stage, where the buyer deliberately combines requirements before the procedure is launched, or it can emerge through the lot allocation strategy, where rules limiting how many lots a single tenderer can win are used alongside an option for combined-lot bids.

In the context of EU procurement, Directive 2014/24/EU does not prohibit bundling, but the European Commission has flagged aggressive bundling as a factor that reduces SME participation. Buyers who bundle extensively may face challenge if the bundling cannot be justified by genuine delivery or efficiency reasons. The requirement to consider lot division and explain non-division creates an indirect constraint on bundling at the procedure design stage.

Why lot bundling matters for bidders

Bundled lots create a different competitive landscape. When lots are bundled, the pool of capable bidders narrows, often to larger firms or established consortia. A specialist firm that could compete for an individual service line may not have the capacity, financial standing, or management overhead required to deliver a bundled package.

For larger suppliers, bundled tenders can be advantageous: less administrative duplication, greater contract value, and the ability to leverage economies of scale in delivery. For SMEs and specialists, the response is usually to seek consortium or subcontracting arrangements, which introduce their own coordination costs and risk allocation questions.

When reviewing a multi-lot tender, bidders should assess whether certain lots are written in a way that effectively bundles them by requiring common infrastructure, shared management teams, or interdependent deliverables. This de facto bundling may not be labelled as such but has the same effect on who can compete.

Example

A national health authority in Sweden procures medical equipment servicing across three hospital regions. Instead of three separate lots by region, it issues a single bundled lot requiring the successful supplier to maintain all hospitals across all three regions under one contract. The bundled structure favours suppliers with national field service networks and excludes regional specialists who could competently serve one area but lack the footprint for all three.

Frequently Asked Questions

Is lot bundling the same as aggregation?

They are related but distinct. Aggregation refers to combining the purchasing needs of multiple contracting authorities into a single procedure, often through a central purchasing body or framework. Lot bundling refers to combining requirements within a single authority's procurement into fewer, larger lots. Both can have the effect of raising the capability threshold for participation.

Can bundling be challenged legally?

Yes. If a bidder can demonstrate that bundling was unnecessary, had no efficiency justification, and effectively excluded a capable supplier from competing, this can form the basis of a procurement challenge. In practice, challenges on bundling grounds are more common in post-award debrief contexts than as formal legal actions, but the risk is real for buyers who bundle without documented rationale.

How should I respond to a bundled tender as an SME?

The most common approach is to form a consortium with partners who cover the parts of the bundle outside your core capability. Alternatively, if subcontracting is permitted, you may prime the contract and subcontract specific service lines. In either case, read the tender documents carefully for any restrictions on consortium structures or subcontracting ratios, which some buyers impose to manage delivery risk.