Security Envelopes Built for Confidential Business Mail
Protect sensitive information with high-quality security tint envelopes—available in bulk with fast delivery.
Law Firms
Securely mail confidential case files and documents.
Finance
Ideal for statements, billing, and sensitive financial documents.
Medical
Help protect patient information during mailing.
Government
Trusted for secure communications and official mailings.
Why Security Tint Matters
Our security envelopes feature an opaque security tint pattern inside that helps prevent sensitive information from showing through the envelope. Available in a variety of sizes, window options, and closure types to meet your business needs.
✓ Opaque security tint for privacy
✓ Multiple sizes and window options
✓ Self-seal and peel & seal closures
✓ Bulk pricing for high-volume mailing
Security Envelopes for Confidential Mail
#10 Security Envelopes for Business Mail
Shop Envelopes.com security tint envelopes for invoices, statements, checks, notices, and confidential correspondence. Choose #10 regular security envelopes, #10 peel & seal security envelopes or #10 window security envelopes with peel & seal for common business mailing needs. Envelopes.com also carries #10 double window security envelopes and #10 right window security envelopes for documents with specific address layouts.
#9 and Small Security Envelopes
For smaller documents and reply mail, Envelopes.com offers several security envelope sizes and window styles. Shop #9 window security envelopes, #9 double window security envelopes, and #8 5/8 window security envelopes. Smaller choices include #6 3/4 window security envelopes, #6 3/4 peel & seal security envelopes and #6 1/4 security envelopes.
W-2, 1099, and Tax Security Envelopes
Keep tax-related mail organized with Envelopes.com W-2 and 1099 security envelopes. Options include W-2/1099 security envelopes in 5 3/4 x 9 1/4 inch, W-2/1099 security envelopes in 5 3/4 x 8 7/8 inch and W-2/1099 security envelopes in 5 5/8 x 9 inch. These security tint options provide different sizes for tax forms, payroll documents, and other confidential financial mail.
Large Security Envelopes for Documents
Larger paperwork can stay flat and private with Envelopes.com security envelopes made for document-sized contents. 6 x 9 security envelopes work well for mid-size paperwork, while 9 x 12 security envelopes provide room for full-size documents and packets. Envelopes.com also carries 10 x 13 security envelopes for larger files and document mailings. Compare these with the full selection of security tint envelopes to find the right size, window placement, and closure for each mailing.
FAQs
What is a security envelope?
A security envelope has an interior security tint that helps keep sensitive information from showing through the paper. Envelopes.com security envelopes are useful for checks, statements, invoices, tax forms, medical records, and other confidential mail.
How does security tint work?
Security tint is a printed interior pattern that makes enclosed text and numbers harder to see through the envelope. It adds privacy for financial, medical, legal, and business mail.
What size security envelope should I choose?
Choose a size based on the document and whether it will be folded. Envelopes.com offers #10, #9, #6 3/4, 6 x9 inch, 9 x12 inch, 10 x 13 inch, and W-2/1099 security envelope sizes.
Should I choose window or non-window security envelopes?
Window security envelopes work well when an address is printed on the enclosed document. Non-window styles are better when addresses are printed directly on the envelope or added with labels.
Are security envelopes suitable for bulk mailings?
Yes. Envelopes.com security envelopes support high-volume mailings for invoices, statements, tax forms, payroll documents, and confidential notices. Self-seal and peel-and-seal options can also simplify larger mailing jobs.