| Golder Associates LTD. CA-E-FKE0-AM2B | Federal corporation | Inactive | Mississauga | $2.8B |
| Maxxam Analytics International Corporation CA-E-M65A-QZJ2 | Federal corporation | Active | Mississauga | $986.2M |
| Panasonic Canada INC. CA-E-PEHN-ZNQ1 | Federal corporation | Active | MISSISSAUGA | $936.0M |
| Optiv Canada Inc. CA-E-GQDZ-258S | Federal corporation | Active | Mississauga | $814.0M |
| Ari Financial Services INC. CA-E-Q3EC-WFMS | Federal corporation | Active | MISSISSAUGA | $737.6M |
| Panalpina INC. CA-E-WYM9-VQYH | Federal corporation | Inactive | MISSISSAUGA | $704.4M |
| Maple Reinders Constructors LTD. CA-E-5BN7-S7SZ | Federal corporation | Active | Mississauga | $568.2M |
| Kia Canada INC. CA-E-ZC8S-XCK1 | Federal corporation | Active | MISSISSAUGA | $523.1M |
| Dynabook Canada INC. CA-E-F1TZ-Z3DT | Federal corporation | Active | Mississauga | $520.5M |
| Pitney Bowes Leasing Ltd. CA-E-QBZ8-21BM | Federal corporation | Dissolved | MISSISSAUGA | $458.0M |
| Sharp Electronics Of Canada LTD. CA-E-WWY0-APA1 | Federal corporation | Active | MISSISSAUGA | $434.2M |
| Mercedes-benz Canada INC. CA-E-CK5E-AJK9 | Federal corporation | Active | Mississauga | $362.4M |
| Keyence Canada INC. CA-E-ZHDZ-SZKC | Federal corporation | Active | Mississauga | $353.2M |
| Ontario Enterprise Corporation CA-E-9PHA-6S84 | Federal corporation | Dissolved | Mississauga | $344.0M |
| Vwr International, LTD. CA-E-GXTQ-0G1Q | Federal corporation | Inactive | MISSISSAUGA | $324.7M |
| World Vision Canada - CA-E-T2YK-7TG4 | Federal not-for-profit corporation | Active | MISSISSAUGA | $277.9M |
| Nikon Canada INC. CA-E-1Z0S-67KR | Federal corporation | Active | MISSISSAUGA | $239.5M |
| Food Banks Canada CA-E-QPXP-Z5KX | Registered charity | Active | Mississauga | $227.0M |
| United Van Lines (canada) LTD. CA-E-4ZGH-K5SY | Federal corporation | Active | MISSISSAUGA | $226.5M |
| Newcomer Centre Of Peel CA-E-YZ0A-VEY0 | Registered charity | Current | MISSISSAUGA | $224.5M |
| Com Dev LTD. CA-E-AN20-0J7Q | Federal corporation | Inactive | MISSISSAUGA | $197.7M |
| Achēv CA-E-CX47-S3BQ | Registered charity | Active | Mississauga | $170.3M |
| Bell Conferencing Inc. CA-E-GH7S-72MX | Federal corporation | Dissolved | Mississauga | $169.8M |
| Gamble Technologies Limited CA-E-7CCC-FG4F | Federal corporation | Active | Mississauga | $143.0M |
| Brainhunter (ottawa) INC. CA-E-P8QY-GN1Z | Federal corporation | Inactive | MISSISSAUGA | $141.1M |
| World Vision Canada-vision Mondiale Canada CA-E-B922-4DSS | Registered charity | Former | MISSISSAUGA | $137.2M |
| Draeger Safety Canada Limited CA-E-PX6J-E4A7 | Federal corporation | Active | Mississauga | $135.7M |
| Imperial Brady Canada Inc. CA-E-JVNE-QJM8 | Federal corporation | Active | Mississauga | $123.6M |
| GlaxoSmithKline Inc. CA-E-NF01-7565 | Federal corporation | Active | Mississauga | $123.2M |
| Dixie Bloor Neighbourhood Drop-in Centre CA-E-GRJR-T7DR | Registered charity | Former | MISSISSAUGA | $119.8M |
| Praxair Products INC. - CA-E-GDF2-4YEZ | Federal corporation | Inactive | MISSISSAUGA | $115.2M |
| Keysight Technologies Canada Inc. CA-E-5MA5-81CA | Federal corporation | Active | Mississauga | $109.2M |
| Global Mechanical LTD CA-E-KMHJ-BCMT | Licensed business | Cancelled | Toronto | $107.9M |
| Caneta Research INC. CA-E-X86Q-5AVJ | Federal corporation | Active | Mississauga | $100.6M |
| Ericsson Canada Inc. CA-E-GGRR-A0PQ | Federal corporation | Active | MISSISSAUGA | $91.8M |
| Greater Toronto Airports Authority CA-E-QZ5X-5DWH | Federal not-for-profit corporation | Active | MISSISSAUGA | $83.1M |
| 14899105 Canada INC. CA-E-3C7Q-TC23 | Federal corporation | Active | Mississauga | $79.3M |
| Suncor Energy Products INC. CA-E-WZZF-JC4M | Federal corporation | Inactive | Mississauga | $78.8M |
| The Drafting Clinic Canada Limited CA-E-3P8P-R0DK | Federal corporation | Active | MISSISSAUGA | $77.3M |
| Cloud SynApps Inc. CA-E-JR8Y-5CE2 | Federal corporation | Active | Mississauga | $75.2M |
| Metafore Corporation CA-E-VW4Y-RAP9 | Federal corporation | Inactive | MISSISSAUGA | $72.4M |
| Human Resource Capital Group INC. CA-E-5BB9-SJP8 | Federal corporation | Inactive | MISSISSAUGA | $71.4M |
| 10647802 Canada Limited CA-E-B11W-BGDY | Federal corporation | Inactive | Mississauga | $67.4M |
| Woolly Mammoth Outerwear INC. CA-E-DJMM-EASF | Federal corporation | Active | Mississauga | $59.9M |
| Indus Community Services CA-E-DW3F-DVEG | Registered charity | Current | MISSISSAUGA | $57.6M |
| Hewlett-packard (canada) LTD. CA-E-VS4K-K64G | Federal corporation | Inactive | MISSISSAUGA | $56.8M |
| Linde Canada Limited CA-E-6M50-7EC5 | Federal corporation | Active | Mississauga | $56.5M |
| Vci Controls INC. CA-E-8ZK2-A8EN | Federal corporation | Inactive | Mississauga | $55.6M |
| Vacuum Products Canada inc. CA-E-PJJ1-K7XP | Federal corporation | Active | Mississauga | $54.2M |
| Getinge Canada Limited CA-E-G5M6-F8P2 | Federal corporation | Active | Mississauga | $49.3M |
| Avotus Corporation CA-E-FE99-V1VH | Federal corporation | Inactive | MISSISSAUGA | $49.0M |
| Compumstr INC. CA-E-WCQ7-ZJBA | Federal corporation | Active | MISSISSAUGA | $48.7M |
| Foundation For Advancing Family Medicine CA-E-KVRK-MT9K | Registered charity | Active | MISSISSAUGA | $45.4M |
| The Peel District School Board CA-E-2MMW-20TE | Registered charity | Current | MISSISSAUGA | $41.0M |
| Bcl X-ray Canada INC. CA-E-5Z7X-KADW | Federal corporation | Active | MISSISSAUGA | $39.5M |
| Public Digital Inc. CA-E-WTPN-SEPT | Federal corporation | Dissolved | Mississauga | $35.3M |
| Irc Batten Sears Group INC. CA-E-0NGW-EQ3K | Federal corporation | Inactive | Mississauga | $34.4M |
| Cti Working Environments INC. CA-E-XS5J-DB56 | Federal corporation | Active | MISSISSAUGA | $34.0M |
| Renewed Computer Technologies (ontario) CA-E-8XZ1-RQ0J | Registered charity | Current | MISSISSAUGA | $29.3M |
| Punjabi Community Health Services CA-E-SYTZ-C13G | Registered charity | Current | MISSISSAUGA | $25.7M |
| Team Rubicon Canada CA-E-NNWF-TYJC | Registered charity | Active | Mississauga | $22.2M |
| Morguard Amal Corporation CA-E-R6T7-2NSW | Registered charity | Active | Mississauga | $21.6M |
| Dufferin Peel Catholic District School Board CA-E-9F42-5D9E | Registered charity | Current | MISSISSAUGA | $17.6M |
| Liftow Limited CA-E-FFZR-RA4V | Federal corporation | Inactive | MISSISSAUGA | $15.7M |
| Family Services Of Peel CA-E-T2NR-AK5Q | Registered charity | Current | MISSISSAUGA | $11.7M |
| CoSA Canada INC CA-E-RQH3-RJ3R | Registered charity | Active | Mississauga | $9.0M |
| Community Living Mississauga Foundation CA-E-FQ63-DGBW | Registered charity | Current | MISSISSAUGA | $6.1M |
| Muslim Association of Canada CA-E-SASZ-TS00 | Registered charity | Active | MISSISSAUGA | $5.5M |
| Mental Health Research Canada CA-E-TCVK-TTV6 | Registered charity | Active | Mississauga | $4.2M |
| Deen Support Services CA-E-JRQE-6T0Y | Registered charity | Active | MISSISSAUGA | $3.5M |
| Spacefile International Corp. CA-E-KSWE-EHM8 | Federal corporation | Inactive | MISSISSAUGA | $3.4M |
| Luso Canadian Charitable Foundation CA-E-R0NA-783X | Registered charity | Current | MISSISSAUGA | $3.3M |
| Credit Valley Conservation Authority CA-E-5S1H-XG5J | Registered charity | Current | MISSISSAUGA | $1.2M |
| Sikhs Serving Canada Association CA-E-SPGZ-1H0N | Registered charity | Active | MISSISSAUGA | $1.0M |
| Portico Community Church CA-E-QJ6R-97RG | Registered charity | Active | MISSISSAUGA | $805K |
| The Jasmine House CA-E-92M6-GM00 | Registered charity | Active | MISSISSAUGA | $643K |
| 3 Points Aviation Corp. CA-E-STTW-RAK2 | Federal corporation | Active | Mississauga | $638K |
| Black Mental Health Canada INC CA-E-6VPG-0YCS | Registered charity | Active | Mississauga | $615K |
| Sai Dham Canada CA-E-5541-NVGX | Registered charity | Active | MISSISSAUGA | $614K |
| Bridgeway Family Centre CA-E-EZKS-9TCC | Registered charity | Current | MISSISSAUGA | $550K |
| Islamic Society Of North America - Canada (isna - Canada) CA-E-K3RQ-S5ZC | Registered charity | Active | Mississauga | $481K |
| Canadian Centre For Food Integrity CA-E-T2R2-Q8K8 | Registered charity | Active | Mississauga | $452K |
| Care Masters Women and Family Services CA-E-Z9CS-HPAZ | Registered charity | Active | Mississauga | $444K |
| Mississauga Foundation CA-E-ZNQD-YR1W | Registered charity | Active | Mississauga | $392K |
| National Zakat Foundation CA-E-WWDY-4HJ0 | Registered charity | Active | Mississauga | $363K |
| Toledo Foundation (TF) CA-E-V0BF-681Q | Registered charity | Active | Mississauga | $338K |
| Canada Hindu Heritage Centre CA-E-Q2BD-7AKK | Registered charity | Active | MISSISSAUGA | $334K |
| Fellowship Of Christian Athletes Canada CA-E-WHP9-G1Y9 | Registered charity | Active | Mississauga | $307K |
| Muslim Neighbour Nexus CA-E-8C1Z-Y5X8 | Registered charity | Active | Mississauga | $271K |
| Women That Give CA-E-97XD-JSA9 | Registered charity | Active | Mississauga | $249K |
| Penny Appeal Canada CA-E-A26N-QGXX | Registered charity | Active | Mississauga | $234K |
| Mount Zion Apostolic Church Of Canada CA-E-NPTZ-TVC6 | Registered charity | Active | MISSISSAUGA | $224K |
| The Canadian-Muslim Vote CA-E-DZ61-NEBN | Registered charity | Active | Mississauga | $208K |
| Food Banks Mississauga CA-E-NEEY-T7MB | Registered charity | Active | Mississauga | $200K |
| Cargojet Foundation CA-E-J1N7-FEKM | Registered charity | Active | Mississauga | $199K |
| Hari Krishan Publication CA-E-0QXV-VXDS | Registered charity | Active | MISSISSAUGA | $196K |
| SacredHand Canada (SHC) CA-E-YDRW-J75Q | Registered charity | Active | Mississauga | $195K |
| City Centre Baptist Church Inc. CA-E-ZV50-XR4J | Registered charity | Active | Mississauga | $179K |
| Heartland, A Church Connected CA-E-7DQN-VDTX | Registered charity | Active | Mississauga | $167K |
| Start2Finish Canada CA-E-2M3E-CM8P | Registered charity | Active | Mississauga | $164K |
| Renew Church INC. CA-E-PCVG-Q5CJ | Registered charity | Active | Mississauga | $144K |
| The Meadows Baptist Church CA-E-YYM6-6H1N | Registered charity | Active | MISSISSAUGA | $131K |
| Afghan Church of the GTA CA-E-8X8X-Y345 | Registered charity | Active | Mississauga | $116K |
| Alsalam Community Development Association CA-E-HXE1-VQEC | Registered charity | Active | Mississauga | $113K |
| Options Mississauga Print and Office Services CA-E-9D45-1ZYZ | Registered charity | Active | MISSISSAUGA | $110K |
| Sakeenah Canada CA-E-WWE4-B3D0 | Registered charity | Active | Mississauga | $110K |
| ASK Foundation CA-E-ATGV-4BQA | Registered charity | Active | Mississauga | $105K |
| Ornge Foundation CA-E-8FWM-ZNKK | Registered charity | Active | Mississauga | $98K |
| Christ Healing Evangelical Church - Faith Chapel CA-E-9ZTX-KFCW | Registered charity | Active | MISSISSAUGA | $90K |
| Kingdom Covenant Ministries CA-E-XB92-EPFQ | Registered charity | Active | MISSISSAUGA | $83K |
| Peel Senior Link CA-E-0RH1-VD56 | Registered charity | Inactive | MISSISSAUGA | $82K |
| Acorn To Oak Youth Services CA-E-8HQM-TSFY | Registered charity | Active | MISSISSAUGA | $80K |
| Joshua Creek Heritage Art Centre CA-E-BVEQ-8V4C | Registered charity | Active | Mississauga | $77K |
| Canada-China Educational and Cultural Exchange Foundation CA-E-CPQ0-W1K9 | Registered charity | Active | MISSISSAUGA | $75K |
| Union of Medical Care and Relief Organizations-Canada CA-E-1W0E-K7M2 | Registered charity | Active | Mississauga | $72K |
| Music for Every Child CA-E-YY0J-K1HN | Registered charity | Active | Mississauga | $61K |
| The Pentecostal Assemblies Of Canada CA-E-WYMZ-BJ1B | Registered charity | Active | MISSISSAUGA | $61K |
| Cif Charitable Foundation CA-E-GWNJ-MHBC | Registered charity | Active | Mississauga | $61K |
| Extraordinary Church CA-E-3RHV-P9K1 | Registered charity | Active | Mississauga | $59K |
| Faith of Life Network CA-E-T6ZD-V7DJ | Registered charity | Active | MISSISSAUGA | $57K |
| Erdo Foundation CA-E-F0R1-M12P | Registered charity | Active | MISSISSAUGA | $56K |
| Kidney Cancer Canada Association CA-E-A5AH-0RE4 | Registered charity | Active | Mississauga | $53K |
| Women & Children Social Networking WNC-SN CA-E-B7WZ-BZCE | Registered charity | Active | Mississauga | $51K |
| Able Transport LTD CA-E-6TBH-X5JM | Licensed business | Cancelled | Toronto | $50K |
| Canadian Underserved Diversities Centre CA-E-AV77-2HD8 | Registered charity | Active | Mississauga | $47K |
| Action For Humanity Canada CA-E-9ET0-XPN6 | Registered charity | Active | Mississauga | $46K |
| Canadian Baptist Ministries CA-E-Q1HK-B23H | Registered charity | Active | MISSISSAUGA | $46K |
| Al-Mawrid Institute Canada CA-E-S47H-8YTS | Registered charity | Active | Mississauga | $45K |
| STEMHUB Foundation CA-E-C2KN-6YBA | Registered charity | Active | Mississauga | $45K |
| Joshua Creek Church CA-E-KT4V-7YXT | Registered charity | Active | Mississauga | $37K |
| Hindu Federation CA-E-75BC-32JR | Registered charity | Active | MISSISSAUGA | $32K |
| Sheltering International Organisation CA-E-QB6Z-YGYR | Registered charity | Active | Mississauga | $31K |
| The Harris Brand Foundation CA-E-HCES-KTQ9 | Registered charity | Active | MISSISSAUGA | $31K |
| Celiac Canada CA-E-AEFK-Y98Z | Registered charity | Active | Mississauga | $31K |
| Lymphoma Canada CA-E-BFDN-P8Z6 | Registered charity | Active | MISSISSAUGA | $30K |
| Wilkey Foundation CA-E-6NTP-7E64 | Registered charity | Active | Mississauga | $28K |
| Help Me! Projects CA-E-X214-TRSH | Registered charity | Active | Mississauga | $27K |
| Gilgal Christian Community CA-E-S3SN-RF05 | Registered charity | Active | MISSISSAUGA | $27K |
| Droplets of Mercy Inc. CA-E-0CRG-NZRY | Registered charity | Active | Mississauga | $27K |
| Christ Apostolic Church Mount Bethel CA-E-0B8C-BM02 | Registered charity | Active | MISSISSAUGA | $26K |
| Women Without Walls CA-E-XTQ5-E2B5 | Registered charity | Active | Mississauga | $20K |
| Paul Barber Foundation CA-E-FPTM-HP3C | Registered charity | Active | Mississauga | $19K |
| John Cooper Learning Centre CA-E-82XE-BSZ6 | Registered charity | Active | Mississauga | $19K |
| Mississauga's Ram Mandir CA-E-0KW4-RGYJ | Registered charity | Active | MISSISSAUGA | $17K |
| Donor Drive 4 Dorothy CA-E-TF90-14M6 | Registered charity | Active | Mississauga | $17K |
| Canadian Islamic Union CA-E-HHJW-VX8E | Registered charity | Active | Mississauga | $14K |
| Malton Baptist Church CA-E-J3NX-KYSG | Registered charity | Active | Mississauga | $14K |
| Canada Gx Association Alliance CA-E-AYCS-SG2Z | Registered charity | Active | Mississauga | $11K |
| Pure Hearts Foundation CA-E-9GXJ-XGTB | Registered charity | Active | Mississauga | $10K |
| The Young Leaders CA-E-K3VQ-2MQQ | Registered charity | Active | Mississauga | $10K |
| Pinball Foundation CA-E-YPH3-EBGM | Registered charity | Active | Mississauga | $9K |
| Eekai Foundation CA-E-0HTK-3AEZ | Registered charity | Active | Mississauga | $9K |
| Grace Fellowship Canada CA-E-J8QZ-XE3T | Registered charity | Active | MISSISSAUGA | $6K |
| The Christian And Missionary Alliance In Canada CA-E-EP6T-RA9N | Registered charity | Active | Mississauga | $4K |
| Rotary Club Of Mississauga Foundation CA-E-Y9E9-DKDF | Registered charity | Active | MISSISSAUGA | $3K |
| Living Faith Church a.k.a. Winners' Chapel International CA-E-VCHE-P1NM | Registered charity | Active | Mississauga | $2K |
| Yorkville Limousine LTD CA-E-BPX5-QT2V | Licensed business | Cancelled | Toronto | — |