How to Win on the Temporary Help Services (THS) Supply Arrangement: A Step-by-Step Guide

As a proposal manager in the Canadian federal space, you know that speed, compliance, and a deep understanding of the procurement vehicle are paramount to success. The Temporary Help Services (THS) Supply Arrangement is one of the government's most utilized tools for sourcing skilled professionals, representing a massive pipeline of opportunities with an estimated value exceeding $3.9 billion. Mastering this vehicle isn't just an advantage; it's a necessity for any firm serious about growing its government business. This guide provides a step-by-step playbook for not only qualifying for the THS SA but also consistently winning high-value call-ups.

URGENT OPPORTUNITY: The DND Special Advisor opportunity (W8474-25-THS01) closes on July 10, 2026. With only a short time remaining, use this playbook to ensure your next THS bid is compliant, competitive, and positioned to win.

Decoding the DND Special Advisor Role: A THS Case Study

Before we dive into the mechanics of the THS vehicle, let's look at a real-world, high-stakes example: the current need for a Special Advisor, Level 3 for the Department of National Defence (DND). This isn't your standard administrative placement. The role requires a candidate with a university degree, 10 years of experience providing strategic advice to senior management (Director General level or equivalent), and experience within the last 5 years on complex defence procurement projects. With a potential value approaching $400,000 for up to 240 days of work, it's a significant contract.

The biggest barrier to entry? A mandatory Top Secret security clearance held by the resource at the time of bid submission.

This single requirement immediately filters the pool of potential bidders, creating a significant opportunity for firms that have invested in building a bench of highly-cleared resources. This call-up perfectly illustrates the dual nature of THS: it can be for straightforward temporary support, but it's also used for highly specialized, strategic roles that are critical to government operations. Winning this type of contract requires more than just finding a resume; it demands a proactive strategy for resource management, compliance, and pricing.

What is the Temporary Help Services (THS) Supply Arrangement?

The Temporary Help Services (THS) Supply Arrangement (EN578-172870) is a pre-vetted list of suppliers that federal departments can use to procure temporary help professionals quickly and efficiently. Managed by Public Services and Procurement Canada (PSPC), it's designed to fulfill temporary needs for additional assistance during workload surges, employee absences, or for special projects. The maximum duration for any single contract is 40 consecutive working days, which can be extended up to a total of 49 consecutive weeks. You can find the official overview on the CanadaBuys tender notice.

Unlike a standing offer, a supply arrangement doesn't guarantee any work. It's a "hunting license"—it gets you on the list of qualified suppliers who are eligible to receive and bid on individual call-ups from government departments. The real competition begins after you're qualified.

THS vs. ProServices: Understanding the Key Differences

Proposal managers frequently ask about the difference between the THS SA and the ProServices Supply Arrangement. Confusing the two can lead to a non-compliant bid, as they are governed by different rules and intended for different purposes.

Tracking opportunities across both vehicles is essential. A powerful opportunity intelligence platform like Tendriv's Scout can streamline this by flagging relevant RFPs from both THS and ProServices, allowing you to focus your resources on the right bids without manually sifting through CanadaBuys.

Who Uses THS and for What?

Virtually every federal government department and agency uses THS. Some of the most frequent users include:

• Department of National Defence (DND)
• Shared Services Canada (SSC)
• Immigration, Refugees and Citizenship Canada (IRCC)
• Employment and Social Development Canada (ESDC)
• Public Services and Procurement Canada (PSPC)
• Health Canada (HC)

They use it to fill a wide range of roles quickly, often for:

• Backfilling Leaves: Parental, sick, or disability leave.
• Seasonal Peaks: Tax season at Canada Revenue Agency (CRA).
• Short-Term Projects: Assisting a team with a year-end financial close.
• Vacant Positions: Providing coverage while a permanent staffing process is underway.

All of this activity is managed through the government's official Centralized Professional Services System (CPSS) ePortal, which is the hub for all bid submissions.

How to Qualify for the THS Supply Arrangement (EN578-172870)

Getting on the Temporary Help Services (THS) Supply Arrangement is the first major hurdle. Qualification is managed through a formal Refresh Solicitation with strict requirements.

The Quarterly Intake Process: Don't Miss Your Window

The THS SA is not continuously open to new suppliers. PSPC refreshes the list of qualified suppliers on a quarterly basis, with bids typically due on the last business day of March, June, September, and December. Missing this window means waiting another three months for your next chance. This makes it critical to monitor CanadaBuys diligently. To avoid missing an intake period, a tool like Tendriv's Scout can provide real-time alerts when the THS refresh solicitation is posted, ensuring you have the maximum amount of time to prepare your submission.

Choosing Your Streams: From Admin Support to Special Advisors

The THS SA is divided into two main Workstreams, which are further broken down into numerous classifications. You must qualify for each classification individually.

• Workstream 1: Office Support (NAICS 561320) - Includes roles like Administrative Assistant, Clerk, Data Entry Operator.
• Workstream 2: Professional and Technical Services (NAICS 561320) - Includes roles like Project Manager, Financial Specialist, Communications Consultant, Technical Writer, and Special Advisor.

Your first strategic decision is which streams to target. It's tempting to apply for everything, but this is a mistake. Focus on the streams where you have a proven track record and, most importantly, a deep bench of qualified consultants. To qualify for a classification, you must submit the resume of a "Proposed Resource" who meets all mandatory criteria specified in Annex A of the solicitation.

Meeting Mandatory Corporate and Financial Requirements

Before you can demonstrate your resource pool, your company must pass a series of mandatory pass/fail corporate checks. As per Part 4 of the RFSA, these include:

• Previous Business Experience: You must prove your company has been awarded at least one contract for temporary help services from either a public or private sector client.
• Financial Capability: You must prove financial stability by submitting financial statements demonstrating positive net equity for your most recent fiscal year.
• Security Clearance: Your organization must hold a valid Designated Organization Screening (DOS) clearance at the time of bid submission. This is a non-negotiable requirement.

Failure to provide the correct documentation for any of these points will result in your entire submission being disqualified. Using Tendriv's Compliance Matrix tool to create a checklist, assign owners, and track completion helps ensure nothing is missed before the deadline.

Winning Strategies for THS Call-Ups

Once you're on the THS Supply Arrangement, you're no longer proving you're qualified; you're competing against other qualified firms for each individual contract.

Navigating 'Right-Fit' vs. Point-Rated Bid Evaluations

THS call-ups generally use one of two evaluation methods. Understanding which one is being used is the most important part of your bid strategy.

1. Lowest Price Compliant (or "Right-Fit"): This is the most common method. The client issues a set of mandatory criteria (e.g., 5 years of experience in X, a valid Secret clearance, a specific certification). As long as your proposed candidate meets all mandatories, the contract is awarded to the supplier who proposed the lowest all-inclusive per diem rate. Your strategy is to find a compliant candidate at the most competitive price possible.
2. Point-Rated (Best Value): Less common but used for complex roles. Candidates are scored based on how well they exceed the minimum requirements. The contract is awarded to the bid with the highest total score, calculated by a formula like: (Technical Score / Max Technical Score * 70%) + (Lowest Price / Bidder's Price * 30%) = Final Score. Your strategy here is to submit your "rockstar" candidate who will max out the points, and price them based on the value they bring.

A tool like Tendriv's Shredder can automatically scan a call-up document to identify the evaluation methodology and extract mandatory criteria, saving you critical time and focusing your bid/no-bid decision.

Tackling High-Barrier Mandatories: The Top Secret Clearance Example

Let's return to our DND Special Advisor example. The "Top Secret Clearance" is a high-barrier mandatory. A Top Secret (Level III) clearance can take over a year to process, and departments will not sponsor a candidate for a temporary help contract. This means you must have a candidate who already possesses the required clearance at bidding.

This is why a strong resource bench is not a luxury; it is a necessity. Winning firms proactively recruit and partner with consultants who already hold high-level clearances. Managing this complex pool of resources, their skills, and their clearance levels is a major challenge. When a short-fuse RFP drops, you need to be able to build a compliant proposal instantly. Using a tool like Tendriv's Drafter can help you assemble the required resume formats and compliance matrices in minutes, not hours, provided you have your resource information ready.

Developing a Competitive Rate Strategy for the Grid

Your bid price is an all-inclusive per diem rate that must cover the consultant's wage, corporate overhead, statutory burdens (CPP, EI), vacation pay, and profit margin. When you qualify for the SA, you submit a rate grid for each classification; this is your maximum allowable rate. In a call-up, you can bid this rate or anything lower.

Your pricing strategy must be informed by data. You need to know the winning rates for similar roles in the same department. Manually searching GC Info or Proactive Disclosures for this data is incredibly time-consuming. An opportunity intelligence tool like Tendriv's Scout can help you aggregate historical award data, showing you the average and winning per diem rates for specific roles and allowing you to price your bid competitively without leaving money on the table.

Common Pitfalls for New Vendors on the THS Vehicle

Many eager suppliers get on the THS SA only to struggle to win their first call-up. This is often due to a few common mistakes.

Misinterpreting Stream Requirements

The stream and level definitions in the THS SA's Annex A are extremely specific. A "Project Manager" in Stream 5 has a different set of required experiences than a "Business Consultant" in Stream 11. Submitting a candidate whose resume is a near-miss is a guaranteed way to be found non-compliant. Don't try to force a square peg into a round hole; read the fine print of the requirement every single time.

Underestimating the Importance of a Strong Resource Bench

THS is a rapid-response vehicle. Call-ups often have response times as short as 5-10 business days. You do not have time to go to the market and recruit a new candidate from scratch. Successful THS suppliers have a "warm bench" of pre-vetted consultants who have agreed to be proposed for upcoming work. If you're relying on LinkedIn and job boards to respond to THS bids, you're already behind.

The DND Special Advisor opportunity closes on July 10, 2026. With only a short time remaining, use this playbook to ensure your next THS bid is compliant and competitive.

FAQ: Winning on the THS Supply Arrangement

Q1: Can a THS contract lead to permanent government employment?

A1: No. The Treasury Board Directive on Temporary Help Services explicitly states that THS cannot be used to circumvent the permanent appointment process. A temporary help worker cannot be "bridged in" or offered a permanent position as a direct result of their THS contract. They must apply for any permanent jobs through the official, competitive process open to the public at jobs.gc.ca.

Q2: What is the difference between the THS Supply Arrangement (SA) and the THS Standing Offer (SO)?

A2: The THS SA is the master pool of all qualified suppliers. Any federal department can use the SA for requirements under $40,000. The THS SO is a smaller, secondary pool of the highest-ranked suppliers from the initial SA qualification. Only these SO Holders can bid on requirements between $40,000 and $400,000. To become an SO holder, a supplier must rank highly during the initial RFSA evaluation, which includes factors like price and the number of streams qualified for.

Q3: What happens if a department keeps extending a THS contract beyond the 49-week limit?

A3: A single THS contract is limited to an initial period of 40 workdays, which can be extended up to a total of 49 consecutive weeks at the same department. Any requirement extending beyond this limit is a violation of the Treasury Board Directive. This is to prevent the creation of a "de facto employee" status and ensure that long-term needs are filled through proper permanent staffing actions. Departments are audited on their use of temporary help, and misuse can result in corrective action.

Q4: My company is small. Can I realistically compete on THS?

A4: Absolutely. THS is one of the most accessible vehicles for Small and Medium Enterprises (SMEs). Success is not about company size but about your ability to provide the right person for the right price, quickly. A smaller, agile firm with a strong niche network (e.g., a pool of cleared financial analysts) can be highly competitive, especially in lowest-priced compliant bids where brand name is irrelevant and only compliance and price matter.