Premium Business Mail Services
With Whistl's premium unsorted business mail PremierSort service, you can save time and money while reducing the number of unreadable items in your unsorted mail.
Premium Business Class Mail with Whistl
Ideal for businesses that don’t have the time to pre-sort their items and are unable to meet the pre-sorted mail criteria, we offer a choice of two high-end delivery options depending on your delivery needs:
- A two-day service that gives you the benefits of automated sorting for faster delivery times
- A three-day service for less time-sensitive, unsorted, and heavier/larger deliveries, which provides all-around value-for-money
Whistl offers premium unsorted business mail services, including collection at your preferred time and final-mile delivery through Royal Mail's UK network.
Our state-of-the-art sortation equipment reduces the number of unreadable items and decreases sorting time by around 30%. This can help you reduce mailing costs and administrative time with Whistl's fully managed business-class mail service.
| Up to 100g letters | Up to 100g Light large letters | 101-750g Heavy large letters | Up to 1kg packets | |
|---|---|---|---|---|
| 2 day | ✓ | ✓ | ✘ | ✘ |
| 3 day | ✓ | ✓ | ✓ | ✓ |
Premium Unsorted Business Mail Benefits, with PremierSort
- Cost-effective – more unsorted mail is processed per hour, saving you money.
- Fast, state-of-the-art sorting systems.
- Flexible – we can sort various envelopes, including C4 pre-printed and blank envelopes.
- Reduction in un-routable and rejected items, resulting in additional savings.
- Convenient collection times to suit you.
- Choice of indicia to support both business mail and promotional mailings.
PremierSort Business Class Mail Criteria
- Customers must send at least 10,000 items per collection, unless we are also collecting presorted mail for our Premier service, in which case the minimum is 1,000 items.
- PremierSort is available for advertising mail and business mail.
- To qualify for discounts mail items must be machineable and achieve a minimum OCR reading rate of 95%.
High-Priority Business Mail Delivery Solutions
If you’re looking for a premium unsorted business mail service to enhance your company’s deliveries, PremierSort might be the right solution for your organisation’s needs.
Read examples from our customers on our tailored support
Nationwide Partner with Whistl to Drive Cost-Efficient Mail Management
Nationwide Building Society


Imperial College Switch to Whistl For Mail Efficiency
Imperial College Healthcare NHS Trust








