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Updated: 06 Apr 2026

10 Best Business Mailing Envelopes 500-per-box

#1 Best Pick
Mead Mailing Envelopes, Clasp Closure, 9" X 12", All-Purpose 24-lb Paper, Brown Kraft Material, 20 per Box (76020)

Mead Mailing Envelopes, Clasp Closure, 9" X 12", All-Purpose 24-lb Paper, Brown Kraft Material, 20 per Box (76020)

Brand: Mead
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  • Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity
  • 9" x 12" size
  • Brown Kraft material
  • 20 envelopes per box
  • Made in United States
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#2 Best Value
Quality Park 6 x 9 Catalog Envelopes with Self Seal Closure, for Mailing, Storage and Organizing, 28 lb. White Wove, 100 per Box (QUA44182)

Quality Park 6 x 9 Catalog Envelopes with Self Seal Closure, for Mailing, Storage and Organizing, 28 lb. White Wove, 100 per Box (QUA44182)

Brand: Quality Park
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  • Quality Park's 6 x 9 catalog envelopes are perfect for holding folded documents or smaller items. They are great for mailing, storage and organizing in both home and office environments.
  • Redi-Strip provides a clean, quick seal immediately upon contact. Simply peel off the adhesive strip and press to seal. The peel-off strip protects the adhesive from dust for a longer shelf life
  • Manufactured from heavyweight 28 lb. white wove stock to give contents extra protection during mailing, storage and handling
  • So many uses means supply is depleted quickly! Conveniently packed in 100 count to reduce frequency of purchasing
  • Made in the U.S.A.
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#3 Budget Pick
DL Size Cardboard Mailers, 220x110mm Self Seal Security Envelopes, Kraft Paper Document Mailing Envelopes for Business, Invoices, Letters (Pack of 50)

DL Size Cardboard Mailers, 220x110mm Self Seal Security Envelopes, Kraft Paper Document Mailing Envelopes for Business, Invoices, Letters (Pack of 50)

Brand: Generic
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  • The envelope is designed to make soft or flat products closed Tight in the envelope. So you can meet under 20mm thickness target easier, while other soft normal paper envelopes or poly mailing bags will just 'inflate' with a soft item inside.
  • No more licking envelopes or searching for a glue stick. Simply peel and press for a quick, clean, and secure seal every time. The strong self-adhesive strip ensures your important business documents, contracts, and invoices are sealed securely for peace of mind during transit.
  • The ideal dimension for mailing standard DL-size documents (Dimension: 220mm x 110mm), letters, statements, and legal correspondence without folding or fuss. Presents a classic, professional, and eco-conscious image for your business. Made from durable and recyclable materials.
  • Built-in Tear Strip: Includes a convenient, easy-open tab, allowing your clients to access their documents quickly without needing to use scissors, which could damage the contents inside.
  • **Not suitable for the unbendable item
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#4 Top Choice
VANRA 150 Pack Colorful Envelopes #10 Business Envelopes Bulk for Office Checks, Letter Mailing Invoices, Party Invitations, 4.13 x 9.49 in (15 Assorted Colors)

VANRA 150 Pack Colorful Envelopes #10 Business Envelopes Bulk for Office Checks, Letter Mailing Invoices, Party Invitations, 4.13 x 9.49 in (15 Assorted Colors)

Brand: VANRA
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  • [150 Pieces #10 Colorful Envelopes Bulk] Pack of 150 pcs colorful #10 business envelopes. A great collection of 15 colors office mailing envelopes 4-1/8 x 9-1/2 in.
  • [Premium Quality Color #10 Envelopes] #10 business mailing colorful envelopes are made of 110GSM paper and double side seam. Smooth to put the cards, tickets in and out.
  • [Great Business Envelopes Self Seal #10] Self-adhesive #10 colored business envelopes for office checks, invoices, mailing letters, unique invitations, announcements, personal letters, business letterhead, etc.
  • [#10 Colored Envelopes for Letter, Invitations, Office] Assortment of 15 colors includes mint green, dark green, pale yellow, cream, white, navy blue, pink, orange, yellow, red, blue, baby blue, lilac, purple, and black (10 of each color).
  • [Quick Self Seal] With a protective strip on the square flap, just peel and press seal the standard invoices envelopes. It will save a lot of time with the easy self-seal flap. Each #10 security envelopes peel and seal measures 4.13 x 9.49 inches.
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#5 Popular Choice
Quality Park, #10 Business Envelopes, Gummed, White, 500 per Box (11112)

Quality Park, #10 Business Envelopes, Gummed, White, 500 per Box (11112)

Brand: Quality Park
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  • GUMMED FLAP: Provides users with ease of mind that their contents will stay securely closed
  • DURABLE: Heavyweight 24-lb. paper stock ensures no rips or tears
  • PROFESSIONAL FINIISH: Bright White paper makes for a fresh, clean appearance perfect for any use.
  • GREAT VALUE: Every box comes with 500 gummed envelopes that are so versatile they can be used for multiple purposes.
  • MULTI-PURPOSE: Use these white wove envelopes as office envelopes, interoffice envelopes, storage of documents, etc.
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#6 Top Pick
Quality Park 7 x 10 Clasp Envelopes, Clasp and Gummed Closures for Storing or Mailing, 28 lb Kraft Paper, 100 per Box (QUA37868)

Quality Park 7 x 10 Clasp Envelopes, Clasp and Gummed Closures for Storing or Mailing, 28 lb Kraft Paper, 100 per Box (QUA37868)

Brand: Quality Park
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  • Quality Park 7x10 clasp envelopes are a staple of every office; a gummed flap & reusable clasp make them ideal for mailing and storage; 100/box
  • Envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat
  • A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail
  • Heavyweight 28 lb kraft paper envelopes are opaque to protect private contents; strong enough for bulk mailing or organizing the office
  • Stock up on this hard to find size; an economical way to send photos, certificates or documents you’d rather mail flat
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#7 Top Pick
Cumberland Self Seal Plain Face Envelope Box of 500, C6 White

Cumberland Self Seal Plain Face Envelope Box of 500, C6 White

Brand: Cumberland
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  • Product Type: Office Products
  • Package Weight: 2.13 kg
  • Package Dimensions: 31.0 cms (L) x 23.6 cms (W) x 9.9 cms (H)
  • Country of Origin: Australia
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#8 Top Pick
Columbian #10 Envelopes, Gummed Seal, Executive Business, 4-1/8 x 9-1/2 Inches, White, 500 Per Box (CO125)

Columbian #10 Envelopes, Gummed Seal, Executive Business, 4-1/8 x 9-1/2 Inches, White, 500 Per Box (CO125)

Brand: Columbian
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  • Executive Style diagonal seam V-flap construction; premium 24 lb. white wove stock; moisture activated gummed seal
  • Envelope is ideal for all business, professional and personal correspondence
  • 4-1/8" x 9-1/2"; 500 envelopes per box; made in USA
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#9 Top Pick
500 Self Seal Security Mailing Envelopes - #10 White Letter Businesses Envelopes -500 Peel and Seal Tinted Windowless # 10 Envelope - Printer Friendly - Self Stick Bulk Envelops

500 Self Seal Security Mailing Envelopes - #10 White Letter Businesses Envelopes -500 Peel and Seal Tinted Windowless # 10 Envelope - Printer Friendly - Self Stick Bulk Envelops

Brand: Splendoress
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  • HIGH QUALITY & BULK PRICING - 24lbs high quality envelopes at a fraction of the price
  • NO NEED TO LICK THE FLAP ANYMORE - Very convenient
  • SELF SEAL ENVELOPE- Just peel and stick 4 1/8 in. x 9 1/2 in size envelop
  • CAN'T SEE THROUGH ENVELOPES - Security printing pattern on the inside prevents from seeing what inside. Windowless envelope
  • LONG LASTING SUPPLY - 500 count per box.NDAA Section 889 Compliance Certfication
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#10 Top Pick
Quality Park #6-3/4 Business Envelopes with a Gummed Flap for Standard Remittance Business Mailing, 24 lb White Wove, 5-3/8 x 6-1/2, 500 per Box (90070)

Quality Park #6-3/4 Business Envelopes with a Gummed Flap for Standard Remittance Business Mailing, 24 lb White Wove, 5-3/8 x 6-1/2, 500 per Box (90070)

Brand: Quality Park
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  • SIDE SEAMED GUMMED FLAP CONSTRUCTION: Quality Park's business envelopes have a moisture activated GUMMED seal allowing you to send your invoices, statements and business mailing with confidence and professionalism.
  • 24 LB WHITE WOVE STOCK: Manufactured from premium 24 lb stock, the white wove paper is ideal for everyday business use. Quality Park's 24 lb. White Wove stock creates a professional touch to your personal and business mailing.
  • 500 ENVELOPES IN EACH BOX: ideal for both everyday office use and bulk mailings, each box of Quality Park #6-3/4 Remittance Business Envelopes provides a long lasting supply!
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