Your agency sources across multiple spend categories. You might put out RFPs for construction, IT, professional services, maintenance and repair, commodities, or specialized services. The mix varies by agency type and size, and each category brings different response levels and different risks.
If you’re treating every category the same way, by simply posting solicitations on your website or in the newspaper, you’re managing sourcing risk with a blanket approach in a situation that requires precision. Some categories have a deep network of potential vendors who will reliably respond, while others are structurally prone to limited options, low participation, or incumbent concentration.
Knowing which of your categories falls into which group is the starting point to improving your vendor market. You can’t address sourcing risk you don’t understand, and you can’t understand it if your solicitation history, vendor data, and participation records aren’t organized for easy analysis.
Factors largely outside your control often shape spend categories. The number of qualified suppliers in your region, the complexity and specialization of the work, the margins on government contracts compared to private sector projects, and the level of regulatory and certification requirements can all limit who can and will participate in a solicitation.
Some categories are deep markets, like construction work in mid-sized metropolitan areas or commodity purchasing in well-supplied categories. These carry low sourcing risk because the vendor market can absorb normal fluctuations without leaving you short on competition.
Other categories, however, are shallow markets by nature. Highly specialized or niche services, categories with significant licensing or certification requirements, and categories in which the private sector consistently provides better margins than government contracts all lead to a structurally smaller vendor pool and more fragile competition.
The middle ground carries the most risk. This is a category that used to be a deep market with plentiful responses but has slowly, quietly become shallow. Your agency did nothing wrong, but the vendor market shifted through consolidation, retirements, capacity movements, or technology changes. You might not realize it, though, until the next solicitation comes back with two responses instead of six.
When assessing the sourcing risk in a specific spend category, four dimensions determine your agency’s vulnerability.
How many vendors are actively competing for contracts in this category? If two or three vendors are consistently winning the majority of awards, your agency is dependent on a narrow supplier base. If one of those vendors exits, changes their pricing, or loses capacity, your sourcing options will shrink immediately.
You should be able to answer this question for every major spend category at any point. That requires your award history and vendor participation data to be accessible and organized by category, not scattered across spreadsheets, filing cabinets, and email records.
How many qualified vendors are registered in this category, and how many are actually engaging with your solicitation? This is the difference between a nominal vendor pool and an effective one. If a category has 40 registered vendors but consistently produces four or five submissions, you have a market depth problem. The gap between these two numbers is worth investigating before the next solicitation. To see it clearly, you need a system that tracks engagement at the vendor level, not just at the solicitation level.
How significant is this category to your agency’s operations? A category that supports essential services, high-value contracts, or time-sensitive projects carries higher risk than one where delays or limited competition have manageable consequences. Criticality does not change the vendor market, but it changes how quickly you need to act when participation signals start moving in the wrong direction.
If competition in this category falls short, what are your options? Can the requirement be met through a cooperative purchasing agreement or a piggy-backable contract? Categories where a direct competitive solicitation is the only viable path will carry more risk than ones where cooperative procurement provides a fallback. You should know your substitution options for every highly critical, low-depth category before you need them, before time pressure limits your analysis and plans.
Your agency already has the data you need to produce a meaningful category risk map, including solicitation history, vendor registration records, submission logs, and award history. But is that data organized in a way that makes analysis practical and possible?
You should be able to pull the following for each primary spend category:
How many vendors were notified on each of the last three solicitations in this category, and how many submitted? That ratio is your participation rate, and it is the single most useful indicator of vendor market health in any category. If you cannot produce this number for a given category in a few minutes, that’s the first problem to solve, because an analysis you can’t run consistently won’t get run at all.
How many different vendors have won awards in this category over the past two years? If the same one or two vendors are winning repeatedly, your competitive pool may be narrower than your registration numbers suggest. Award history concentrated in a small number of vendors is a supplier concentration signal worth investigating.
Have you have used sole-source authority in this category in the past 24 months, and, if so, how many times? Recurring sole-source awards in the same category – those that are by necessity, not by design – are almost always a vendor pool development problem, not a genuine market limitation. They are also the clearest signal that the category needs focused attention.
Once you have this picture across your top 10 or 15 spend categories, group them by risk level (high, medium, low) based on the four dimensions above. The categories rated high on criticality and low on market depth or substitutability are where your sourcing is most vulnerable and where vendor pool development should be focused first.
A few category types carry more sourcing risk than most agencies expect.
General construction in most markets draws adequate competition. But specialized subcategories, like utility infrastructure, environmental remediation, and certain types of vertical construction are often served by a much smaller pool of qualified contractors.
You should know specifically which construction subcategories have thin participation histories in your solicitation record. Those are the RFPs most likely to require rebids or sole-source workarounds when a key contractor exits.
Many vendors who register under IT categories are hardware or commodity suppliers, not services firms. The actual pool of vendors who are qualified for a specific technology engagement like a system implementation, custom development, or cybersecurity consult is often two or three firms in most regional markets.
Audit your IT vendor registrations to understand how many are relevant to the services solicitations you run, rather than assuming category registration counts reflect a usable pool.
HVAC, electrical, elevator, and other maintenance categories are frequently served by a limited number of local vendors. When incumbent relationships become established in those categories, the competitive pool can narrow without anyone noticing because the incumbent keeps performing and your agency keeps renewing without testing the market.
You should be running competitive solicitations in these categories on a regular cycle and tracking whether the number of responses is holding steady or declining over time.
Many qualified firms in planning, engineering, financial consulting, and organizational development categories do not actively monitor general procurement portals. They find opportunities through relationships and targeted outreach. If your solicitation notification process doesn’t reach these firms because they’re not registered in your vendor portal, your participation in these categories will consistently underperform the available market.
The solution is a vendor portal that makes registration frictionless enough that qualified firms will register when a relevant opportunity is brought to their attention, as well as a connected network of available vendors used by other similar or regional agencies to reach out to when new categories or requirements arise.
Once you’ve identified your highest-risk categories, it’s time to act on them.
For categories with high supplier concentration, work to expand the registered vendor pool before the next solicitation. The most effective approach is to identify vendors in this category who are active with other similar agencies and invite them to register with you.
If you’re using a digital procurement platform like PlanetBids, you can access the entire vendor network based on region, keyword, or category and invite vendors to respond to specific solicitations or to register with your agency for any future projects. A vendor who is already familiar with your portal format and already active in public procurement is far more likely to register and interact than one approaching government work for the first time.
For categories with low market depth, diagnose whether it’s a genuinely shallow market or a registration and notification gap. If qualified vendors exist but are not in your portal, make registration easier to find and complete.
The single most effective change you can make is ensuring that your vendor portal is easy to navigate and that registration is straightforward enough that a vendor without dedicated business development staff can complete it without assistance. If registration requires significant effort, in-person meetings, or paper forms, qualified vendors may not bother, and your agency will absorb higher costs in every solicitation in that category.
For categories where substitutions aren’t readily available, identify and document cooperative purchasing options now, while there’s no immediate pressure. Knowing which piggy-backable contracts, cooperative agreements, or alternate procurement methods are available in your high-risk categories means that when a competitive solicitation falls short, you can make a decision rather than scrambling for a contract.
For highly critical categories, review participation data after every solicitation. If you notice a declining trend across three solicitations, it’s time to act. Waiting any longer means you’ve already lost the time you needed to act.
PlanetBids' end-to-end procurement lifecycle solution centralizes and highlights your vendor participation and category response rates to help you easily identify and quickly act on potential risk areas. With an easy-to-use vendor portal and a network of available vendors searchable by location, category type, keyword, or certification, agencies can easily manage and expand their vendor networks to ensure that all solicitations receive the most responses and best competition available. See how it works today by scheduling a customized demo.