Exhibit 21.1
LIST OF SUBSIDIARIES
The following entities were subsidiaries of the Registrant as of March 31, 2020. Pursuant to Item 601(b)(21)(ii) of Regulation S-K, certain subsidiaries of the Registrant which, considered in the aggregate as a single subsidiary, would not have constituted a significant subsidiary (as defined in Rule 1-02(w) of Regulation S-X) have been omitted.
Name |
| Jurisdiction of Incorporation or Organization |
ADS Structures, Inc. |
| Delaware |
ADS Ventures, Inc. |
| Delaware |
BaySaver Technologies, LLC |
| Delaware |
StormTech LLC |
| Delaware |
ADS Worldwide, Inc. |
| Delaware |
ADS Corporativo, S.A. de C.V.(1) |
| Mexico |
ADS Europe Holding B.V. |
| Netherlands |
ADS Europe B.V. |
| Netherlands |
ADS Middle East FZE |
| United Arab Emirates |
ADS International, Inc. |
| Delaware |
ADS Mexicana, S.A. de C.V.(1) |
| Mexico |
ADSM Centro América, S.A. |
| Costa Rica |
Advanced Drainage Systems of Puerto Rico, LLC |
| Puerto Rico |
Hancor of Canada, Inc. |
| Canada |
Tubos y Plásticos ADS Chile Limitada(2) |
| Chile |
Tuberias Tigre-ADS Limitada(3) |
| Chile |
Tigre-ADS Argentina S.R.L.(4) |
| Argentina |
Tigre-ADS Colombia Limitada(4) |
| Colombia |
Tigre-ADS Peru S.A.C.(4) |
| Peru |
Tubos Tigre-ADS do Brasil Limitada(4) |
| Brazil |
Tubos y Plásticos Tigre-ADS de Chile Limitada(4) |
| Chile |
Green Line Polymers, Inc. |
| Delaware |
Infiltrator Water Technologies Ultimate Holdings, Inc. |
| Delaware |
Infiltrator Water Technologies Holdings, LLC |
| Delaware |
Infiltrator Water Technologies, LLC |
| Delaware |
Delta Treatment Systems, LLC |
| Delaware |
Ezflow GP, LLC |
| Delaware |
Ezflow, L.P.(5) |
| Tennessee |
Infiltrator Systems Canada, Inc. |
| Connecticut |
ISI Pipe, LLC |
| Delaware |
ISI Polyethylene Solutions, LLC |
| Delaware |
Presby Environmental Holdings, LLC |
| Delaware |
Presby Environmental, Inc. |
| New Hampshire |
Presby Plastics, Inc. |
| New Hampshire |
STI Incorporated |
| Connecticut |
Wastewater Environmental Technologies, LLC |
| Connecticut |
Inlet Pipe and Protection, Inc. |
| Illinois |
Sewer Tap, Inc. |
| Oregon |
Spartan Concrete, Inc. |
| Delaware |
(1) | Owned 51% by ADS Worldwide, Inc. and 49% by our joint venture partner. |
(2) | Owned 86.6354% by ADS Worldwide, Inc. and 13.3646% by ADS International, Inc. |
(3) | Owned 50% by Tubos y Plásticos ADS Chile Limitada and the remaining 50% by our joint venture partner. |
(4) | Nominal interests are held by Tubos y Plásticos ADS Chile Limitada and our joint venture partner. |
(5) | Owned 99.99% by Infiltrator Water Technologies, LLC and 0.01% by EZflow GP, LLC. |
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