Flu Clinic Vendors for Employers: How to Set Up Onsite Flu Shots

Every fall, flu season costs employers billions in sick days, lost productivity, and medical claims. The CDC estimates that influenza costs U.S. employers roughly $10.4 billion in direct medical expenses each year — and that doesn’t include the indirect costs of absent workers and reduced output.

Onsite flu clinics are one of the simplest, highest-ROI benefits an employer can offer. An employee walks into a conference room, gets a flu shot in five minutes, and goes back to work. No doctor’s appointment, no pharmacy trip, no half-day off. This guide covers how to find a flu clinic vendor, what to look for, how to plan the logistics, and what the experience looks like for your team.

Why Offer Onsite Flu Shots?

The case is straightforward:

• Reduced sick days. The CDC estimates that flu vaccination prevents millions of illnesses and flu-related doctor visits each year. Even when the vaccine isn’t a perfect match, it reduces severity and duration of illness.
• Employee convenience. Bringing the flu shot to the office removes the biggest barrier to getting vaccinated — the hassle of scheduling a separate appointment. Participation rates for onsite clinics typically run 40–70%, compared to 20–30% when employees are told to go to a pharmacy on their own.
• Signal that the company cares. An onsite flu clinic is a visible, tangible benefit. Employees notice when their employer invests in keeping them healthy.
• Pairs well with other wellness events. Many employers combine flu clinics with biometric screenings, COVID boosters, or open enrollment kickoff events.

What Does a Flu Clinic Vendor Actually Do?

A flu clinic vendor is a licensed healthcare provider — typically a mobile health company, pharmacy service, or occupational health firm — that brings everything needed to administer flu shots at your workplace. Here’s what they handle:

• Licensed clinical staff. Registered nurses, pharmacists, or other licensed immunizers who are trained and credentialed to administer vaccines.
• Vaccine supply and cold chain. The vendor procures flu vaccines, maintains proper cold storage during transport (2–8°C per CDC guidelines), and monitors temperatures throughout the event.
• Informed consent forms. Every employee signs a consent form before receiving a vaccine. Better vendors use digital consent forms rather than paper.
• Vaccine administration. The actual injection, including proper technique, needle disposal in sharps containers, and post-injection monitoring.
• Lot number tracking. Every vaccine has a lot number that must be documented for each recipient. This is a CDC requirement and critical for any future recall tracking.
• Vaccination cards. Employees receive a record of their vaccination, including the vaccine manufacturer, lot number, and date.
• State immunization registry reporting. In many states, vaccination data must be reported to a state immunization information system (IIS). For example, California requires reporting to CAIR (California Immunization Registry). Your vendor should handle this.

Your role as the employer: Provide a clean, well-lit room (a conference room works fine), promote the event to employees, and handle any internal scheduling or sign-ups. The vendor does the rest.

How to Plan Your Flu Clinic

Timing

Flu vaccine supply typically becomes available in late August or September. Most employer flu clinics run in October and November, which aligns with the CDC’s recommendation to get vaccinated before flu activity peaks. That said, clinics held through January still provide meaningful protection — flu season can run into March or April.

Timeline

1. June–July: Start researching vendors. Get quotes, check references, and confirm they can serve your location(s).
2. August: Book your vendor and lock in dates. Vaccine supply is allocated early — vendors who commit to their supplier first get priority.
3. September: Promote the event internally. Send save-the-date emails. Open appointment scheduling if your vendor supports it.
4. October–November: Run the clinic. Send reminders 48 hours and 24 hours before the event.
5. December–January: Consider a mop-up clinic for employees who missed the first round.

Key decisions

• Onsite vs. voucher-based? Onsite clinics have much higher participation. Vouchers (where employees go to a pharmacy) are a fallback for remote workers or small offices where an onsite event isn’t practical.
• Open to all or incentive-linked? Some employers offer flu shots to all employees at no cost. Others tie participation to a wellness incentive. Both approaches work — the key is making it easy.
• Multiple locations? If you have offices in several cities, you may need a vendor with multi-state coverage or separate regional vendors.

What to Look for in a Flu Clinic Vendor

Not all vendors are equal. Here’s what to evaluate:

Licensing and insurance

Confirm that the vendor’s clinical staff are licensed in your state and that the company carries professional liability insurance and general commercial liability. Ask for proof of insurance — a reputable vendor will provide a certificate of insurance (COI) without hesitation.

Vaccine lot tracking and cold chain management

The CDC requires that every administered dose be traceable to a specific lot number. Ask how the vendor tracks this. Digital systems that record the lot number against each employee’s record are far more reliable than handwritten logs. Also ask about cold chain — how they transport vaccines, monitor temperatures, and what happens if the cold chain is broken.

Digital consent forms

Paper consent forms create storage headaches and legibility issues. Modern vendors use tablets or smartphones for digital informed consent — faster check-in, cleaner records, and easier retrieval if needed later.

CDC-compliant documentation

The vendor should provide each employee with a vaccination record that includes the vaccine name, manufacturer, lot number, date, site of injection, and the administering clinician’s name. This is the employee’s proof of vaccination.

State immunization registry reporting

Many states require that vaccinations be reported to a state immunization information system. Ask the vendor whether they report to your state’s registry and how quickly after the event data is submitted.

Appointment scheduling

Can employees pre-book a time slot? This prevents long lines and lets you estimate participation. Vendors with online scheduling tools make this seamless.

Insurance billing

Many flu clinic vendors can bill employee insurance directly, which may reduce or eliminate the employer’s per-shot cost. If this matters to you, ask upfront whether the vendor handles insurance claims and which payers they work with.

Minimum headcount flexibility

Some vendors require a minimum of 50 or 100 employees to send a team onsite. If you have a smaller office, look for vendors with lower minimums or ask about combining your event with a nearby employer.

State regulatory knowledge

Vaccination regulations vary by state — who can administer vaccines, consent requirements for minors (if you extend the clinic to families), and reporting obligations. Your vendor should know the rules in your state without you having to research them.

Quick checklist: Licensed staff, insured, digital consent, lot tracking, cold chain documented, registry reporting, appointment scheduling, insurance billing, flexible minimums, knows your state’s rules.

How Clovi Helps Flu Clinic Vendors

Clovi provides flu clinic software built for the vendors who run these events. The platform handles digital informed consent, vaccine lot tracking, appointment scheduling, and CDC-compliant documentation — all on a tablet at the point of care.

Vendors in the Clovi network use the platform to deliver a fully digital flu clinic experience: no paper consent forms, no handwritten lot logs, and automatic generation of vaccination records. If you’re an employer evaluating flu clinic vendors, ask whether they use a digital platform for consent and documentation — it’s a good indicator of operational quality.

Frequently Asked Questions