Envelopes

Envelopes

Keep your correspondence organized and professional with our wide selection of high-quality envelopes, perfect for offices, schools, government institutions, and business mailrooms. Whether you’re sending invoices, statements, marketing materials, or confidential documents, our envelopes ensure secure sealing, neat presentation, and reliable protection during transit.

Explore a full range of business envelopes, window envelopes, catalog envelopes, and padded mailers, available in multiple sizes, colors, and closure styles to suit every mailing need. Our bulk envelope options deliver excellent value for high-volume operations while maintaining professional standards in design and durability.

From self-seal and gummed envelopes to custom-print and eco-friendly options, you’ll find the ideal solution to keep your office mail efficient and polished. Choose envelopes that reflect your brand’s professionalism and meet your everyday mailing demands—all at competitive wholesale prices.

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259 Products

  • Business Source No. 9 Double Window Invoice Envelopes - Pack of 500 Business Source No. 9 Double Window Invoice Envelopes - Pack of 500
  • Business Source Peel-To-Seal Envelopes - Multipurpose - 3 5/8" Width x 6 1/2" Length - 24 lb - White - Wove - 100 / Box
  • Business Source No.10 Standard Window Invoice Envelopes - Single Window - 9 1/2" Width x 4 1/2" Length - 24 lb - Self-sealing - White - Poly - 500 / Box Business Source No.10 Standard Window Invoice Envelopes - Convenient Self-Sealing - 500/Box
  • Business Source No. 9 Double Window Invoice Envelopes - Double Window - #9 - 8 7/8" Width x 3 7/8" Length - 24 lb - Self-sealing - White - 500 / Box Business Source No. 9 Double Window Invoice Envelopes - Pack of 500
  • Quality Park No. 10 Single Window Envelope with a Self-Seal Closure - Single Window - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Self-sealing - White - Wove - 500 / Box Quality Park No. 10 Single Window Envelopes - Self-Seal Closure - White Wove - 500/Box
  • Quality Park No. 6-3/4 Security Tinted Envelopes with Gummed Closure - Security - #6 3/4 - 3 5/8" Width x 6 1/2" Length - 24 lb - White - Wove - 500 / Box Quality Park Security Envelopes - #6 3/4 - 3 5/8" x 6 1/2" - 24 lb - White - 500/Box
  • Quality Park 10 x 13 Heavy-Duty Clasp Envelopes - Clasp - #97 - 10" Width x 13" Length - Clasp/Gummed Flap - 100 / Box
  • Business Source No. 10 Peel-to-seal Envelopes - Business - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Peel & Seal - White - Wove - 100 / Box
  • Business Source Double Window #10 Envelopes - Double Window - #10 - 24 lb - Self-sealing - White - 500 / Box
  • Quality Park No. 10 Single Window Security Tint Treated Business Envelopes - Business - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Flap - White - 500 / Box
  • Business Source Security Tint Window Envelopes - Business - #10 - 9 1/2" Width x 4 1/8" Length - Peel & Seal - White - Wove - 500 / Box Business Source Security Tint Window Envelopes: #10, Peel & Seal, White - 500/Box
  • Quality Park No. 10 Double Window Security Tint Envelopes - Security - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Gummed - White - 500 / Box Quality Park No. 10 Double Window Security Tint Envelopes - 500/Box
  • Quality Park No. 10 Bright Red Envelopes - Business - #10 - 4 1/8" Width x 9 1/2" Length - 60 lb - Adhesive - Red - 25 / Pack Quality Park No. 10 Bright Red Envelopes - Business Essentials
  • Mead No. 10 Security Envelopes - Business - #10 - 9 1/2" Width x 4 1/8" Length - 20 lb - Gummed - White - Wove - 40 / Box
  • Business Source Economical No. 10 Window Envelope - Single Window - #10 - 9 1/2" Width x 4 1/8" Length - 24 lb - White - 500 / Box Business Source Economical No. 10 Window Envelopes - White - 500/Box
  • Quality Park 10 x 13 Postage Saving ClearClasp Envelopes with Reusable Redi-Tac™ Closure - Clasp - 10" Width x 13" Length - 28 lb - Clasp - Manila - 100 / Box Quality Park ClearClasp Envelopes: 10x13 Postage-Saving Redi-Tac Closure
  • Quality Park 9 x 12 Heavy-duty Clasp Envelopes - Clasp - #90 - 9" Width x 12" Length - Clasp/Gummed Flap - 100 / Box
  • Quality Park Redi Strip Security Mailing Envelopes - Multipurpose - #13 1/2 - 10" Width x 13" Length - Peel Strip - White - 100 / Box Quality Park Redi Strip Security Envelopes - #13 1/2 - White - 100/Box
  • Astrobrights No. 10 Colored Envelopes - Multipurpose - #10 - 24 lb - Assorted - 200 / Pack Astrobrights No. 10 Colored Envelopes - 24 lb - Assorted - 200 / Pack