| WESTON 2083200 · TMA1212900 | Bemis Manufacturing Company | 11 Lighting | Registered | 2023 |
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| WESTON 1744051 · TMA1090922 | Weston Brands, LLC | 7 Machines9 Electronics11 Lighting+2 | Registered | 2021 |
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| WESTON 1417786 · TMA767945 | SI Group-Switzerland GmbH | 1 Chemicals | Registered | 2010 |
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| WESTON 1350432 · TMA852892 | GEORGE WESTON LIMITED / GEORGE WESTON LIMITÉE | 30 Coffee | Registered | 2013 |
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| WESTON 1279315 · TMA689488 | Weston Forest Products Inc. | 19 Building35 Advertising | Registered | 2007 |
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| WESTON 1228274 · TMA678307 | GEORGE WESTON LIMITED / GEORGE WESTON LIMITÉE | 36 Finance | Registered | 2006 |
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| WESTON 1031332 · TMA571542 | Weston Aerospace Limited | 4 Oils9 Electronics10 Medical | Registered | 2002 |
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| WESTON 0568977 · TMA330346 | GEORGE WESTON LIMITED / GEORGE WESTON LIMITÉE | 30 Coffee | Registered | 1987 |
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| WESTON 0549133 · TMA330321 · design | GEORGE WESTON LIMITED / GEORGE WESTON LIMITÉE | 16 Paper35 Advertising | Registered | 1987 |
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| WAYSTONE 2346494 | Owner not listed | 35 Advertising36 Finance | Pending | 2024 |
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| WESTIN 2285496 · TMA1253226 | Owner not listed | 41 Education | Registered | 2024 |
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| WESTNET 2108574 · TMA1185113 | an individual | 38 Telecommunications | Registered | 2023 |
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| WESTIN 1642861 · TMA944740 | Owner not shown | 28 Toys | Registered | 2016 |
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| WESTIN 1587609 · TMA870117 | Westin Hotel Management, L.P. (a Delaware limited partnership) | 36 Finance43 Restaurants | Registered | 2014 |
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| WESTIN 1550616 · TMA854018 | Westin Hotel Management, L.P. (a Delaware limited partnership) | 41 Education43 Restaurants | Registered | 2013 |
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| WISTON 1435119 · TMA779544 · design | Wiston International Trade Co. Ltd. DBA Wiston Building Materials Co. | 19 Building35 Advertising37 Construction | Registered | 2010 |
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| WESTIN 0846975 · TMA534813 | Westin Hotel Management, L.P. (a Delaware limited partnership) | 36 Finance | Registered | 2000 |
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| WESTIN 0766959 · TMA528239 | Westin Hotel Management, L.P. (a Delaware limited partnership) | 25 Clothing35 Advertising41 Education | Registered | 2000 |
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| WESTIN 0477982 · TMA274450 | Westin Hotel Management, L.P. (a Delaware limited partnership) | 43 Restaurants | Registered | 1982 |
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| WESTMOUNT 1612215 · TMA871443 | 10069701 Canada Inc. | 11 Lighting35 Advertising | Registered | 2014 |
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| WESTMOUNT 1582946 · TMA863262 | 10069701 Canada Inc. | 35 Advertising | Registered | 2013 |
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| WESTMOUNT 1024987 · TMA544872 | Utility Structures Inc. | 19 Building | Registered | 2001 |
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| WESTMOOR 2142962 · TMA1201607 | THE GLENCOE GOLF & COUNTRY CLUB | 43 Restaurants | Registered | 2023 |
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| Westwynd 2029191 · TMA1140470 | Western Canadian Pharma Inc. | 5 Pharmaceuticals9 Electronics10 Medical | Registered | 2022 |
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| Westmoon 1832474 · TMA1091335 | Iris Moon LLC | 14 Jewellery18 Leather25 Clothing | Registered | 2021 |
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