You’re approved on a national framework worth £2M+ in potential revenue. But are you missing 60% of the call-offs published under it? This is the reality for many mid-sized defence and security suppliers across the UK: they’ve invested significant time and resources securing framework approval, only to discover that the real revenue opportunity, winning individual call-off contracts, remains frustratingly out of reach. Framework agreements set out the provisions under which future contracts for the supply of goods, services, and/or works are to be awarded, and are established by a contracting authority.
Call-off opportunities under national frameworks are often not advertised as widely as the original framework tender, making them difficult to track without the right tools and procurement intelligence. Deadlines are short (typically 2–4 weeks), and by the time many suppliers spot an opportunity, competitors have already begun developing their bids. Frameworks must follow strict procurement regulations and are generally awarded through a competitive tendering process. Without a systematic discovery process, suppliers miss critical opportunities and fail to realise the full value of their framework investment.
Under the Procurement Act 2023, more frameworks are being used, and transparency requirements mean more call-offs are being published. But visibility remains fragmented across multiple portals—Contracts Finder, Find a Tender, Crown Commercial Service, buyer-specific platforms, and framework-managed portals. Suppliers who don’t have a proactive discovery mechanism are losing revenue to competitors who do.
Some frameworks are statutory (required by law), while others are non-statutory agreements designed primarily to coordinate policy between devolved governments in the UK.
This article explains how to find, track, and win call-off opportunities under the national frameworks you’re already approved for. You’ll discover where opportunities are published, how to set up alerts to catch them early, and how to prepare your business to respond quickly and competitively.
Understanding National Framework Agreements and Call-Off Opportunities
A national framework is a structured agreement used by public sector organisations to procure goods, services, or works from pre-qualified suppliers. These frameworks are typically managed by the Crown Commercial Service or a government department and are designed to standardise purchasing processes across the public sector. Frameworks typically involve pre-approved suppliers who have already passed a supplier selection process, ensuring that only vetted vendors are eligible for call-off contracts.
A framework contract is defined by the Procurement Act 2023 as a contract between a contracting authority and one or more suppliers. Public procurement relies on these frameworks to ensure efficient, fair, and compliant purchasing, streamlining the acquisition of goods, services, or works while maintaining transparency and value for money.
A call-off is a specific requirement issued under the framework—a distinct piece of work or purchase that a buyer needs fulfilled. Rather than running an open tender, the buyer simply invites approved suppliers to bid (or directly awards the work to a preferred supplier). Call-offs can range from £50k to £5M+, depending on the framework category and buyer need.
Why do call-offs matter? Because they’re where the real revenue lives. A supplier on a framework worth £10M over five years might see only £2M in actual call-offs if they’re not actively finding and winning them. Without a discovery mechanism, the framework investment becomes a missed opportunity.
From DCI market analysis conducted in December 2025, frameworks account for just 17.95% of all published notices, yet they represent a significant 74.3% of total contract value—a striking concentration of opportunity. Only 31.7% of suppliers have access to this 74.3% of value, meaning framework access is a critical competitive differentiator. This concentration underscores why systematic call-off discovery is essential to realising the full strategic value of your framework position.
Under the Procurement Act 2023, which came into force in February 2025, call-off opportunities are now required to be published transparently, increasing visibility. UK 4 tender notices (which include call-offs under frameworks) represent 26% of total published notices—a clear indication that the call-off route is a primary avenue for public sector contracting. Further, frameworks themselves represent 74.3% of total contract value, meaning the call-off route is where the real revenue concentration lies.
Call-offs are published with varying frequency depending on the framework and buyer demand. Some buyers call-off monthly; others quarterly. The challenge is that these opportunities are often buried across multiple portals with minimal fanfare, making them easy to miss if you’re relying on manual searches.
National frameworks differ significantly between countries due to variations in political structure, cultural values, and economic goals, which shape how public procurement and framework contracts are managed and implemented.
The Strategic Benefits of Call-Off Contracts for Your Business
Winning call-off contracts delivers distinct advantages over open tendering:
Streamlined bidding process: Call-offs have shorter response windows (2–4 weeks) compared to open tenders (4–8 weeks). This means less time spent on bid development and faster decision-making by buyers.
Reduced competition: Only approved suppliers on the framework can bid. This typically means 5–20 potential competitors rather than 50+ on an open tender. Your odds of winning improve significantly.
Steady revenue pipeline: Frameworks generate recurring call-offs. Once you establish a track record with a buyer, the opportunities continue. This creates predictable, ongoing revenue rather than one-off contracts.
Flexibility and long-term project support: Call-off contracts provide flexibility while maintaining set terms and conditions. They can also extend beyond the framework’s end date, allowing for longer-term project management and continuity for both buyers and suppliers.
Relationship building: Call-offs create direct contact with buyers. Each response is an opportunity to demonstrate capability, build trust, and position yourself as a preferred supplier for future opportunities and future bids. Suppliers who engage proactively often get advance notice of upcoming call-offs—before they’re publicly advertised.
Lower bid costs: Shorter response windows and framework familiarity mean lower bid development costs and higher margins. You’re not starting from scratch; you’re responding to a specific need within a pre-agreed framework.
Reduced risk and cost savings: Call-off contracts can help reduce the risk of material loss and damage by allowing for staggered deliveries. They also facilitate cost savings through bulk order discounts and reduced storage costs.
Competitive advantage: Suppliers who find call-offs within 48 hours have significantly more time to develop quality bids. This translates directly to higher win rates. From the December 2025 gap analysis conducted across the UK procurement market, suppliers who move from reactive to proactive discovery see 30%+ increases in call-off win rates. Call-off contracts also help achieve best value for both buyers and suppliers by considering quality, efficiency, and overall cost-effectiveness—not just the lowest price.
Strategic positioning: Call-offs are often for specific buyer needs. Winning them positions you as a specialist or preferred supplier, creating a foundation for future opportunities and potentially higher-value work.
Framework value concentration: From DCI market analysis conducted in December 2025, approximately 17.95% of all published notices are framework entry notices, yet they represent 74.3% of total contract value. However, only 31.7% of suppliers have access to this value—meaning that once you’re on a framework, being among the 31.7% who actively find and win call-offs is what determines revenue success.
Demystifying the Call-Off Process: How It Works
Understanding the call-off lifecycle helps you prepare and respond strategically. The procurement process for call-offs involves a selection process at the call off stage, where suppliers are chosen to deliver specific goods or services under the framework.
Publication: The buyer publishes a call-off notice. The notice outlines the requirement, evaluation criteria, and response deadline. Tender documents are published alongside the call-off notice and must adhere to the framework’s terms.
Response window: Suppliers have 2–4 weeks to submit their bid. This timeline is fixed and non-negotiable. Missing the deadline means missing the opportunity entirely.
Evaluation: The buyer evaluates bids according to pre-set criteria (usually price, quality, delivery capability, and social value). Evaluation can take 2–6 weeks depending on complexity.
Award: The buyer is awarding call off contracts as individual contracts under the overarching framework agreement, specifying the contract period for each. The buyer selects the winning supplier and publishes an award notice. The supplier then begins contract delivery.
Repeat: The buyer may issue multiple call-offs under the same framework over time, creating ongoing opportunities.
Framework agreements must follow strict procurement rules and typically last up to four years. Only contracting authorities can award call-off contracts under a framework they have established.
Direct Awards vs. Mini-Competitions
Buyers use two common methods to award call-offs:
Direct awards select a single supplier without competition. These are faster and often used for repeat work or where a supplier has unique capability or security clearance. Winning direct awards requires strong buyer relationships and being “front-of-mind” when the buyer has a need.
Mini-competitions invite multiple approved suppliers to bid. These are more competitive but transparent. Winning requires a strong bid that demonstrates superior capability or value.
Understanding which method a buyer typically uses helps you focus your relationship-building efforts. Buyers who favour direct awards reward suppliers who engage proactively; those who use mini-competitions reward suppliers with strong bids.
The Importance of Supplier Engagement
Even when on a framework, proactive engagement with buyers is critical. Suppliers who reach out to buyers regularly—asking about upcoming needs, sharing capability updates, and building relationships—are more likely to be selected for direct awards and receive advance notice of mini-competitions. Proactive suppliers who meet buyer’s requirements and demonstrate strong performance metrics are more likely to be selected as the successful supplier. From our DCI December 2025 research, proactive suppliers see 40% higher call-off win rates than reactive suppliers.
Maintaining high standards of service delivery and ensuring compliance with framework requirements are critical for ongoing success.
The Core Challenge: How to Find Call-Off Opportunities Before Your Competitors
This is where most suppliers struggle. Call-off opportunities are scattered across multiple portals with no single source of truth:
- Contracts Finder (central government)
- Find a Tender (public sector)
- Crown Commercial Service (CCS frameworks)
- Buyer-specific portals (MOD Defence Sourcing Portal, NHS procurement sites, local authority platforms)
- Framework-managed portals (Aurora Engineering Partnership, Digital Marketplace, etc.)
Call-offs aren’t advertised as widely as original framework tenders. They’re often published with minimal fanfare and short response windows (2–4 weeks). By the time you spot an opportunity, time is running out.
Checking 10+ portals daily is time-consuming and inefficient. Suppliers miss 60%+ of relevant call-offs due to portal fragmentation and lack of automated alerts. The gap analysis identified this as a critical pain point: suppliers report missing call-offs due to portal fragmentation and lack of visibility, resulting in lost revenue opportunities.
Reactive suppliers—those who search manually and respond after spotting an opportunity—are at a significant disadvantage. Proactive suppliers—those who receive alerts the moment a call-off is published—have more time to develop quality bids and respond strategically.
The Defence Sector Dimension
This challenge is particularly acute in defence and security procurement. Under the Defence and Security Public Contracts Regulations (DSPCR) 2011, MOD frameworks require strict compliance with specific procurement regulations, and only pre-approved suppliers with demonstrated financial stability, relevant experience, and regulatory compliance are eligible to participate. Frameworks such as the Engineering Delivery Partner (EDP) framework and Digital Outcomes & Specialists (DOS 7) frequently publish call-offs through both Find a Tender and specific sub-portals managed by framework leads. A supplier missing a call-off opportunity on an MOD framework faces not just lost revenue, but also potential security clearance delays; many high-value call-offs require SC (Security Check) or DV (Developed Vetting) clearances that take weeks to obtain. Starting the clearance process early—before a call-off is published—is critical to maintaining competitiveness. This security dimension adds urgency to proactive discovery: suppliers who wait until a call-off is published may find themselves unable to respond because their staff lack the necessary clearances.
The Solution: Using a Centralised Portal for All Procurement Frameworks
The answer is clear: you need a centralised platform that aggregates call-offs from all sources and alerts you automatically. Rather than managing 10+ portals, you manage one.
A centralised procurement intelligence platform:
- Aggregates data from Contracts Finder, Find a Tender, Crown Commercial Service, buyer websites, and framework-specific portals into a single searchable database
- Enables filtering by framework, sector, value, deadline, and buyer—so you see only relevant opportunities
- Provides automated alerts that notify you the moment a call-off matching your criteria is published
- Offers historical data showing past winners, pricing patterns, and buyer preferences—enabling you to predict future call-offs and prepare bids in advance
- Saves time by reducing manual search time from 10+ hours per week to 1–2 hours per week
- Supports a framework based procurement model by enabling efficient management of call off orders and contract award notices, ensuring compliance and transparency throughout the process
Suppliers using centralised platforms find 90% of relevant call-offs, increase win rates by 25%, and generate significantly more revenue. The efficiency gain alone—reducing search time by 80%—frees your team to focus on bid development and buyer engagement rather than portal hunting.
DCI provides comprehensive access to national frameworks and call-off contracts. Our platform aggregates data from thousands of sources, providing a single, searchable database of national frameworks and subsequent call-off opportunities. You can set up automated alerts for specific frameworks, receive notifications the moment a call-off is published, and access historical award data to understand buyer patterns and predict future needs.
Suppliers should keep detailed records of all deliverables and maintain transparency in pricing and costs throughout the contract period.
A Step-by-Step Guide to Locating Call-Offs
Here’s how to systematically find and track call-offs:
Step 1: Set up DCI. Create your DCI account, add your organisation profile, and select the frameworks you’re approved for so DCI can tailor what you see.
Step 2: Configure your search. Search for each framework you’re on and review call-off opportunities published to date. This gives you a baseline understanding of buyer activity, call-off frequency, current market prices, and the specific call off terms being used.
Step 3: Set up saved searches. Save searches for each framework using relevant keywords. This enables you to re-run the same search regularly without reconfiguring filters.
Step 4: Configure alerts. Set up automated alerts for specific frameworks. Choose alert frequency (daily for priority frameworks, weekly for secondary ones) and notification method (email, dashboard, SMS).
Step 5: Review alert results. Check alerts daily. Not every alert will warrant a bid—assess whether the opportunity aligns with your capability and strategy.
Step 6: Respond to call-offs. When you identify a relevant opportunity, develop your bid and submit before the deadline. Having a standard bid template reduces response time from 5 days to 2 days.
Step 7: Track results. Monitor bid status, capture feedback, and refine your approach based on what you learn.
Note: If any deviations from the agreed call-off terms or contract specifications are required, you must obtain prior approval from the buyer to ensure compliance and transparency.
Setting Up Keyword Alerts for Frameworks
Configure alerts for:
- Specific framework names (e.g., “Crown Commercial Service IT Services Framework”)
- Keywords like “call-off,” “mini-competition,” or “direct award”
- Value thresholds (e.g., opportunities >£100k)
- Specific sectors or product categories
Example alert: “Crown Commercial Service IT Services Framework” + “call-off” + value >£100k, daily notifications. This delivers 3–5 relevant alerts per week, enabling you to respond to high-value opportunities within 48 hours.
Analysing Past Awards to Predict Future Needs
Market intelligence tools enable you to analyse:
- Past winners: Who won previous call-offs under your frameworks? Analysing individual contracts and their performance metrics can help you improve your chances in future bids.
- Pricing patterns: What did they charge? What’s the market rate?
- Bid frequency: How often does this buyer call-off? (Monthly? Quarterly?) Monitoring contract periods helps you anticipate upcoming opportunities.
- Buyer preferences: Which suppliers are preferred? Why?
This intelligence helps you predict when the next call-off will occur, prepare bids in advance, and understand what it takes to win. Suppliers who analyse past awards and prepare bids before call-offs are published win significantly more contracts.
Preparing Your Business to Win Call-Off Contracts
Finding call-offs is only half the battle. You must be prepared to win them.
Documentation: Keep case studies, client references, certifications, and testimonials current and ready to include in bids. Buyers want evidence of your capability and track record.
Pricing: Develop a clear pricing structure and understand your cost drivers. Be ready to quote quickly—you may have only 48 hours to develop a bid.
Delivery capability: Ensure you can deliver within the buyer’s timeline. Have resources allocated and ready to mobilise. Overcommitting and underdelivering damages your reputation and future opportunities.
Quality standards: Understand the buyer’s quality requirements (ISO certifications, Defence Standards, security clearances, etc.) and ensure you can meet them, including any specified service levels and compliance with the terms of the public sector contract.
Compliance: Ensure you meet all regulatory requirements—GDPR, health & safety, environmental standards, Modern Slavery Act compliance, and any sector-specific regulations. Suppliers must also maintain adequate insurance coverage as specified in the framework agreement to protect against commercial risks.
Team alignment: Brief your team on the frameworks you’re on and ensure everyone understands the call-off process and response procedures. Coordinate with the framework provider and make sure your team understands the requirements of the public sector buyer. Decision-making must be fast; delays cost opportunities.
Bid process: Develop a standard bid template tailored to your frameworks. This reduces response time and improves consistency. A well-prepared template can reduce bid development from 5 days to 2 days.
Agility: Be ready to respond quickly. Can you turn around a quality bid in 48 hours? If not, you’ll miss opportunities. Establish a decision-making process that enables fast approvals.
Social Value Commitments
Under the Procurement Act 2023 consultation recommendations (due to be enshrined in law in 2026), contracts over £5M will increasingly require social value metrics as one of the award criteria, with at least 10% weighting. Social value commitments are now a key criterion at the call off stage and play a significant role in awarding call offs within national frameworks.
If you’re bidding on high-value call-offs, document your social value commitments (jobs creation, apprenticeships, upskilling) clearly in your bid, and ensure these commitments are clearly set out in your tender documents. Buyers are shifting from ‘sign up and forget’ social value to measured delivery and KPI tracking—particularly through the new UK 9 Contract Performance Notice. Suppliers who can demonstrate clear, measurable social value delivery will have a competitive advantage in high-value call-off competitions.
Don’t Just Find Frameworks, Win the Opportunities Within Them
Getting approved on a national framework is valuable—but it’s only the beginning. Securing as many call offs as possible is key to maximizing the value of your framework participation, as the real revenue comes from systematically finding and winning the call-off opportunities published under those frameworks. Frameworks may also be used by other contracting authorities, not just the one that established them, and all parties must adhere to the framework’s terms when awarding and fulfilling each call off contract.
Framework entry is a 3–5 year investment. Without a discovery mechanism, that investment is wasted. Suppliers who implement a systematic call-off discovery process—combining centralised aggregation, automated alerts, and proactive buyer engagement—see dramatic improvements in win rates and revenue.
Our DCI Market Analysis identified this clearly: suppliers who systematically find and win call-offs realise the full value of their framework investment. Those who remain reactive miss 60%+ of opportunities and fail to generate the revenue they could.
Proactive suppliers find call-offs early, respond quickly, and are prepared to win. They engage with buyers, build relationships, and position themselves as preferred suppliers. They use market intelligence to predict future call-offs and prepare bids in advance. They track results and continuously improve their approach.
The competitive advantage is significant. Suppliers who move from reactive manual searching to proactive, alert-driven workflows see 30%+ increases in call-off win rates and substantial revenue growth.
Call off contracts under national frameworks serve as blueprints to ensure consistency, quality, and cooperation across different regions or departments within a single nation.
Competitive Pressure and Market Evolution
The Procurement Act 2023 is also attracting new suppliers into the public sector market. Public bodies and public authorities play a key role in awarding individual contracts and managing framework suppliers, ensuring that the procurement process is fair and competitive. As competition increases, suppliers who have systematic call-off discovery processes will have a clear advantage—they’ll find opportunities faster than competitors, respond with higher-quality bids, and build stronger buyer relationships. Public procurement processes are evolving to ensure compliance and transparency, making it essential for framework suppliers to align with the requirements set by public authorities. In a tightening economic environment, the public sector remains an attractive and stable market. Suppliers who invest in proactive discovery now will be better positioned to protect and grow their market share as new competitors enter the space.
Utilising Call-off Opportunities
Call-off opportunities are the real revenue driver under national frameworks—but only if you can find them. Portal fragmentation, short response windows, and minimal advertising mean suppliers miss critical opportunities unless they have a systematic discovery process in place.
The solution is clear: move from manual portal checking to automated alerts and centralised aggregation. Set up saved searches for your frameworks, configure alerts to notify you the moment a call-off is published, analyse past awards to predict future needs, and prepare your business to respond quickly and competitively.
The suppliers who find and win call-offs are the ones who invest in systematic discovery and proactive engagement.
If you’re approved on national frameworks but struggling to find call-off opportunities, it’s time to move from reactive searching to proactive intelligence. DCI helps you never miss a relevant opportunity again. Our platform aggregates call-offs from thousands of sources, delivers automated alerts to your team, and provides market intelligence to help you predict future needs and win more contracts.
