| A B Consultants Inc | 9450 Annapolis Road Lanham,  20706
 Phone(s): 301-843-7657,240-582-8033
 [email protected]
 | Code(s): | 
| A. B. & H. Excavating, Inc | PO Box 99 Route 249
 Callaway, MD 20620
 Phone(s): 301-994-0354
 | Code(s): A | 
| Abuma Enterprises | PO Box 213 Arnold, MD 21012
 Phone(s): 410-647-1939
 | Code(s): A | 
| Adams Associates | 2126 Park Lane Richmond, VA 23230
 | Code(s): B, C | 
| Advanced Survey, Inc. | 3140 West Ward Rd, Suite 103 Dunkirk, MD 20754
 Phone(s): 410-266-9712
 | Code(s): C, F, G | 
| A-J Marine, Inc. | 11101 Cedar Lane Kingsville, MD 21087
 Phone(s): 410-592-8157
 | Code(s): A | 
| Allied Contractors, Inc. | Prestway Building 204 E. Preston Street
 Baltimore, MD 21202-3994
 Phone(s): 410-539-6727
 | Code(s): A | 
| Alvey, James T. | PO Box 1 Dameron, MD 20628
 | Code(s): F | 
| American Marine Construction | PO Box 40 Harwood, MD 20776
 Phone(s): 410-867-7399
 | Code(s): A | 
| Anarex Incorporated | 303 Najoles Rd Suite 114
 Millersville, MD 21108-9803
 Phone(s): 410-987-6901
 | Code(s): C, F, G | 
| Anderson Marine Construction | PO Box 598 Severna Park, MD 21146
 Phone(s): 410-255-2999,410-977-6276
 | Code(s): A | 
| Andrews, Miller & Associates, a division of Davis, Bowen & Friedel, Inc. | 106 North Washington Street Suite 103
 Easton, MD 21601-3128
 Phone(s): 410-770-4744
 http://www.dbfinc.com
 | Code(s): C, F, G | 
| Apple Marine Construction, Inc. | PO Box 524 Ocean City, MD 21842
 Phone(s): 410-289-3443
 | Code(s): A, G | 
| Arundel Structures | PO Box 9745 Arnold, MD 21012
 | Code(s): A | 
| Bailey Marine Construction, Inc. | 9810 Mill Point Road Easton, MD 21601
 Phone(s): 410-822-2205
 | Code(s): B | 
| Bay Bridge Permit Services | PO Box 6447 Annapolis, MD 21401
 Phone(s): 443-926-6888
 [email protected]
 | Code(s): B, C, E, F, G | 
| Bay Marine Contractors, Inc. | 26 Bachelors Choice Lane Lothian, MD 20711
 | Code(s): A | 
| Bayland Consultants & Designers, Inc. | 7445 New Ridge Road Suite T
 Hanover, MD 21076
 Phone(s): 410-694-9401
 [email protected]
 https://www.baylandinc.com
 | Code(s): B, C, D, E, F, G | 
| Bayshore Design | Attn: Mr. Craig Palubinski PO Box 339
 Kinsale, VA 22488
 Phone(s): 804-472-4439
 | Code(s): C | 
| Bell, Benjamin B. Jr. | 4710 Author Place, Suite 565
 Camp Springs, MD 20746
 | Code(s): F | 
| Biohabitats | The Stables Building 2081 Clipper Park Road
 Baltimore, MD 21211
 Phone(s): 410-554-0156
 [email protected]
 http://www.biohabitats.com
 | Code(s): B, C, D, E, F | 
| Bitter, Susan D. | 28 E. Susquehanna Ave. Suite 2
 Towson, MD 21204
 | Code(s): B, C, D, E, F | 
| Black & Veatch Engineers & Architects | 1500 Meadow Lake Parkway Kansas City, MO 64114
 Phone(s): 913-339-2000
 | Code(s): B, C, D, F, G | 
| Bloomingdale Construction Co., Inc | PO Box 15, Main Street Queenstown, MD 21658
 Phone(s): 410-827-8734,410-827-8984
 | Code(s): | 
| Boyd & Dowgiallo | 405 Headquarters Drive Suite 7 & 8
 Millersville, MD 21108
 Phone(s): 410-987-2500
 | Code(s): C, F | 
| Boyd, Robert C. | 412 Headquarters Dr Suite 5
 Millersville, MD 20602
 Phone(s): 410-729-1234
 | Code(s): C, F | 
| Brandywine Sand & Gravel, Co. | 54800 Sheriff Road Fairmount Heights, MD 20743
 Phone(s): 301-925-8100
 | Code(s): A | 
| Bray Hill, LLC | 10357 Whitewasher Way Columbia, MD 21044
 Phone(s): 443-745-6133
 [email protected]
 | Code(s): A, B, C, E, F | 
| Bryan & Sons, LLC | P.O. Box 2850 Easton, MD 21601
 Phone(s): 410-819-3001
 | Code(s): A, B, C, D, E, F | 
| Burton Hastings, Inc. | PO Box 212 Route 2
 Cambridge, MD 21613
 Phone(s): 410-228-1980
 | Code(s): A | 
| C & C Inc. | 6013 Old Washington Road Sykesville, MD 21784
 Phone(s): 410-795-0374,410-440-0884
 | Code(s): A | 
| Cecil Construction Corp. | PO Box 1177 Elkton, MD 21921
 | Code(s): | 
| Chesapeake Docks, Inc. | 333 Cedar Drive PO Box 2213
 Salisbury, MD 21802-2213
 Phone(s): 410-546-5543
 | Code(s): A | 
| Chesapeake Pile Driving | 11443 Rawhide Road Lusby, MD 20657
 Phone(s): 410-326-2321
 | Code(s): A, F | 
| Christopher Consultants, Ltd. | 7172 Columbia Gateway Drive Suite 100
 Columbia, MD 21046
 Phone(s): 410-872-8690
 http://www.christopherconsultants.com
 | Code(s): A, B, C, E, F | 
| Coastal & Estuarine Research, Inc | PO Box 674 Lewes, DE 19958
 Phone(s): 302-645-9610
 | Code(s): B, F | 
| Coastal Design & Construction, Inc. | P. O. Box 650 Gloucester, VA 23061
 Phone(s): 804-693-4158
 | Code(s): A, C, D, F, G | 
| Coastal Resources, Inc. | 25 Old Solomons Island Rd Annapolis, MD 21401
 Phone(s): 410-956-9000
 | Code(s): B, G | 
| Colliflower & Peterson, Inc | PO Box 135 Callaway, MD 20620
 Phone(s): 301-994-2824
 | Code(s): A, C, E, F | 
| Collison Oliff & Associates | PO Box 2209 Prince Frederick, MD 20678
 Phone(s): 410-535-3101
 | Code(s): C, D, G | 
| Community & Environmental Defense Services | 606-A Freeland Road Freeland, MD 21053
 Phone(s): 410-654-3021
 | Code(s): B, F | 
| Consulting Services | 45 Old Solomons Island Rd. Suite 105
 Annapolis, MD 21401
 Phone(s): 410-266-3828
 | Code(s): B, E, F | 
| Cove Corporation | 10200 Breeden Rd, Building 1 Lusby, MD 20657
 Phone(s): 410-326-4577
 | Code(s): B, D, E, F | 
| Crofton Diving Corporation | 16 Harper Avenue Portsmouth, VA 23707
 Phone(s): 757-397-1131
 | Code(s): A, C, F | 
| Cyr’s Marine Construction | 193 West Pasadena Road Millersville, MD 21108
 Phone(s): 410-647-0879
 | Code(s): A, F | 
| D. H. Steffens Construction | 22335 Exploration Drive Suite 1020
 Lexington Park, MD 20653
 Phone(s): 301-862-2226
 | Code(s): C, F, G | 
| D. S. K. Incorporated | PO Box 335 Bozman, MD 21612
 | Code(s): F, G | 
| Daniel M. Lerian Contracting | 281 Beckworth Court Severna Park, MD 21146
 Phone(s): 410-544-0662
 | Code(s): A | 
| David A. Bramble, Inc. | PO Box 419 Chestertown, MD 21620
 Phone(s): 301-778-3023
 | Code(s): A | 
| Davis & Associates Environmental Consulting LLC | Noreen G. Davis, President PO Box 733
 Chestertown, MD 21620
 Phone(s): 410-507-9793
 [email protected]
 http://www.davisenvironmentalconsultingllc.com
 | Code(s): B, C, E, F | 
| Davis, Bowen & Friedel, Inc. | PO Box 93 Salisbury, MD 21803
 | Code(s): C, F | 
| Deckelman’s Pile Driving | 22589 Hudson Road Rock Hall, MD 21661
 Phone(s): 410-778-6777
 | Code(s): A, C, F | 
| Delmarva Development Services, Inc. | 11835 Holly Plains Drive Ridgley, MD 21660
 | Code(s): C, F | 
| Delon Hampton & Associates Chartered | 12300 Twinbrook Parkway Suite 380
 Rockville, MD 20852
 Phone(s): 301-984-8833
 | Code(s): | 
| Development Facilitators, Inc. | 504 B & A Boulevard Severna Park, MD 21146
 Phone(s): 410-647-2727
 | Code(s): C, F | 
| Dewberry & Davis | 2594 Riva Road Annapolis, MD 21401
 Phone(s): 410-841-6811
 | Code(s): C, F, G | 
| Dissen & Juhn Corporation | 101 Log Canoe Circle Suite J
 Stevensville, MD 21666
 Phone(s): 410-604-1802
 | Code(s): A, C, F | 
| E. A. & J. O. Crandell, Inc. | 733 Crandell Road West River, MD 20778
 Phone(s): 410-867-0200
 | Code(s): A | 
| E. A. Engineering, Science & Technology | 15 Loveton Circle Sparks, MD 21152
 Phone(s): 410-771-4950
 | Code(s): B, C, F | 
| E. M. R. Incorporated | 116 Defense Highway Suite 300
 Annapolis, MD 21401
 Phone(s): 410-266-0006
 | Code(s): C, G | 
| Eastern Pile Driving | 612 Back River Neck Road Baltimore, MD 21221
 Phone(s): 410-391-1654
 | Code(s): A | 
| Edward P. Howell, Inc. | 1601 W. Pulaski Highway Elkton, MD 21921
 Phone(s): 410-287-5353
 | Code(s): A | 
| Environmental Concern, Inc. | PO Box P St. Michaels, MD 21663
 Phone(s): 410-745-9620
 | Code(s): A, B, C, D, E, F, G | 
| Environmental Resource Services, Inc. | 1486 Snug Harbor Road Shady Side, MD 20764
 | Code(s): C, G | 
| Environmental Resources, Inc. | 1 Plaza East, Suite 319 Salisbury, MD 21801
 Phone(s): 410-548-5320
 | Code(s): B, C, D, E, F, G | 
| Environmental Systems Analysis, Inc. | 2141 Priest Bridge Drive, Suite 1 Crofton, MD 21114
 Phone(s): 410-267-0495
 http://www.esatoday.com
 | Code(s): B, C, D, E, F | 
| Environs Incorporated | 1927 York Road Timonium, MD 21093
 Phone(s): 410-560-2288
 | Code(s): B, C, D, E, F | 
| EnviroProjects, LLC | 93 Eastway Severna Park, MD 21146
 Phone(s): 410-599-5335
 http://www.EnviroProj.com
 | Code(s): B, C, D, E, F | 
| Fetch Consulting Group | 574-E Ritchie Hwy. #273
 Severna Park, MD 21146
 Phone(s): 410-756-0885
 [email protected]
 | Code(s): C, F | 
| Flippo Construction Co. | 3820 Penn-Belt Place Forestville, MD 20710
 Phone(s): 301-779-4040
 | Code(s): A | 
| Fred L. Hawkins, Co., Inc. | 1315 Pulaski Highway Havre De Grace, MD 21078
 Phone(s): 410-939-5100,410-575-7015
 | Code(s): A | 
| Gahagan & Bryant Associate | 207 E. Redwood Street Suite 307
 Baltimore, MD 21202
 Phone(s): 410-727-5835
 | Code(s): B, G | 
| Gamma Engineering | PO Box 706 Annapolis, MD 21401
 | Code(s): C, E, F | 
| Gebhardt, Inc. | 7708 Alexander Ferry Road Clinton, MD 20735-0026
 | Code(s): A | 
| General Paving & Contracting | 6320 Falls Road Baltimore, MD 21209
 Phone(s): 410-825-3397
 | Code(s): | 
| George Miles & Buhr | 206 W. Main Street Salisbury, MD 21801
 Phone(s): 410-742-3115
 | Code(s): A, C, F, G | 
| Geo-Technology Associates, Inc. | 3445-A Box Hill Corporate Center Drive Abingdon, MD 21009
 Phone(s): 410-515-9446
 | Code(s): A, B, C, E | 
| Geo-Technology Associates, Inc. | 14280 Park Center Drive Suite A
 Laurel, MD 20707
 Phone(s): 410-792-9446,301-470-4470
 | Code(s): A, B, C, E | 
| Gorman, Bud | 309 Carolyn Street Georgetown, DE 19947
 Phone(s): 302-856-6851
 | Code(s): C, F | 
| Greenhorne & O’Mara | 113 West Road Baltimore, MD 20770
 Phone(s): 301-220-2596,410-982-2800
 | Code(s): B, C. F, G | 
| Greenspring Environmental | PO Box 935 Brooklandville, MD 21022
 | Code(s): B, C, D, E, F | 
| Haltaman, Monroe Jr. | PO Box 324, Route 2 Morris Leonard Road
 Parsonsburg, MD 21849
 | Code(s): F | 
| Heinsohn Contracting, Inc. | 222 Severn Avenue Suite 45
 Annapolis, MD 21403
 | Code(s): A, F | 
| Hoffman Marine Construction | 1605 Coralie Court Pasadena, MD 21122
 | Code(s): A, F | 
| Hofmann, John A., P.E. | 521 Walton Road Huntingtown, MD 20639
 Phone(s): 410-535-5112
 | Code(s): C, F | 
| Holly Oak Consulting LLC | 303 Sycamore Rd Severna Park, MD 21146
 Phone(s): 443-906-3419
 [email protected]
 www.hollyoakconsulting.com
 | Code(s): B, C, D, E, F, G | 
| J & J Bulkheading | Main and Church Streets PO Box 600
 Selbyville, DE 19975
 Phone(s): 302-436-2800
 [email protected]
 http://www.jandjbulkheading.com
 | Code(s): A, C, F | 
| Jahnigen Marine Construction | 757 N. Mesa Road Millersville, MD 21108
 Phone(s): 410-766-6572
 | Code(s): A | 
| John D. Sheetz, Inc. | 829 Central Avenue Linthicum, MD 21090
 Phone(s): 410-789-1370
 | Code(s): A | 
| John H. Norris & Sons, Inc. | 501 Palisades Boulevard Crownsville, MD 21032
 Phone(s): 410-987-5646
 | Code(s): A | 
| John H. Plummer & Associates | 615 Eastern Shore Drive Salisbury, MD 21801
 Phone(s): 410-546-4215
 | Code(s): C, F, G | 
| K. C. I. Technologies, Inc. | 1020 Cromwell Bridge Road Baltimore, MD 21204
 Phone(s): 410-321-5500
 | Code(s): C | 
| Kenster Corporation | 621 Central Avenue Edgewater, MD 21037
 | Code(s): F | 
| Keystone Aerial Survey | North Philadelphia Airport Philadelphia, PA 19114
 Phone(s): 215-677-3119
 | Code(s): D, G | 
| Kibler Excavating, Bldg., Eng. | 3648 Washington Boulevard Baltimore, MD 21227
 Phone(s): 410-242-3337
 | Code(s): A | 
| Koch Associates | 2661 Riva Road Suite 220
 Annapolis, MD 21401
 Phone(s): 410-573-5720
 | Code(s): C, F | 
| Kool Ice & Seafood Co. | 110 Washington Street Cambridge, MD 21613
 Phone(s): 410-228-2300
 | Code(s): A | 
| Kora & Williams Corporation | 8412 Georgia Avenue Silver Spring, MD 20910
 Phone(s): 301-770-6132
 | Code(s): A | 
| Lacoboni Site Specialists, Inc. | PO Box 72550 Baltimore, MD 21237
 Phone(s): 410-686-2100
 | Code(s): A | 
| Lake Services of VA, Inc. | PO Box 608 Dumfries, VA 22026
 Phone(s): 703-683-7459
 | Code(s): A, C, F | 
| Land Tech | Robert L. Clark 147 Old Solomons Island Rd., 4th floor
 Annapolis, MD 21401
 Phone(s): 410-266-3033
 | Code(s): B, C, E, F | 
| Landmark Engineering | 1751 Elton Road Suite 202
 Silver Spring, MD 21009
 Phone(s): 410-515-1947
 | Code(s): C | 
| Lane Engineering, Inc. | 117 Bay Street Easton, MD 21601
 Phone(s): 410-822-8003
 [email protected]
 http://www.leinc.com
 | Code(s): B, C, D, E, F, G | 
| Lane Engineering, Inc. | 354 Pennsylvania Ave Centreville, MD 21617
 Phone(s): 410-758-2095
 [email protected]
 http://www.leinc.com
 | Code(s): B, C, D, E, F, G | 
| Lane Engineering, Inc. | 15 Washington St Cambridge, MD 21613
 Phone(s): 410-221-0818
 [email protected]
 http://www.leinc.com
 | Code(s): B, C, D, E, F, G | 
| Lee Foundation Co. Inc. | 8210 Harford Road Baltimore, MD 21234
 Phone(s): 410-661-1616
 | Code(s): A | 
| Louis F. Soul Company, Inc. | 6918 University Drive Baltimore, MD 21220
 Phone(s): 410-742-7797
 | Code(s): C, F | 
| Lovenzi Dodds & Gunnill | PO Box 3 Montgomery Lane
 Waldorf, MD 20601
 Phone(s): 301-843-6255
 | Code(s): C, F, G | 
| Macfarlane Construction, Ltd. | 215 Cockeysville Road Cockeysville, MD 21030
 Phone(s): 410-667-1370
 | Code(s): A | 
| Mandrin Construction Co. | 8174 Ritchie Highway Pasadena, MD 21122
 Phone(s): 410-544-3500
 | Code(s): A, F | 
| Mansfield & Sons, Inc. | PO Box 66A Route 1
 Cordova, MD 21625
 Phone(s): 301-822-4646,301-820-2031
 | Code(s): A | 
| Maps Incorporated | 7677 Canton Center Drive Baltimore, MD 21214
 | Code(s): D | 
| Marina Concepts, Inc. | 1424 Davis Ford Road Woodbridge, VA 22192
 | Code(s): C, F | 
| McCarthy & Associates | 14458 Old Mill Road Suite 210
 Upper Marlboro, MD 20772
 Phone(s): 410-627-7508
 | Code(s): B, C, F | 
| McCrone, Inc. | Easton, MD
 Phone(s): 410-822-3322
 | Code(s): C, F, G | 
| McCrone, Inc. | 20 Ridgley Avenue Annapolis, MD 21401
 Phone(s): 410-267-8621,410-267-6947
 [email protected]
 | Code(s): C, F, G | 
| McGinty’s Marine Construction, Inc. | 9206 Coastal Highway PO Box 1324
 Ocean City, MD 21842
 Phone(s): 410-250-5066
 | Code(s): A, F | 
| McLean Contracting Company | 6700 McLean Way Glen Burnie, MD 21061
 Phone(s): 410-553-6700
 | Code(s): | 
| MD Environmental Service | 2011 Commerce Drive Annapolis, MD 21401
 | Code(s): A, F | 
| Melvin C. Benoff & Sons, Inc. | 4216 Old North Point Road Baltimore, MD 21222
 Phone(s): 410-477-5650
 | Code(s): A | 
| Mermaid Marine Permits | 6049-S Majors Lane Columbia, MD 21045
 Phone(s): 301-740-5202
 | Code(s): F | 
| Messick & Associates, Inc. | Mr. C. D. Messick, President 45 Old Solomons Island, Suite 105
 Annapolis, MD 21401
 Phone(s): 410-266-3212
 | Code(s): C | 
| Mid Atlantic Native Plants | Herbaceous and Wetland Native Plant Supplier 12506 Susquehanna Trail South
 New Freedom, PA 17349
 Phone(s): 717-227-0924
 [email protected]
 http://www.midatlanticnatives.com
 | Code(s): | 
| Morris & Ritchie Assoc, Inc. | 139 N. Main Street Suite 200
 Bel Air, MD 21014
 Phone(s): 410-879-1690
 | Code(s): C, G | 
| NMP Engineering Consultants, Inc. | 11350 McCormick Road Executive Plaza I, 6th Floor
 Hunt Valley, MD 21031
 Phone(s): 410-771-9808
 [email protected]
 http://www.nmpengineering.com/
 | Code(s): B, D, F | 
| O. S. Incorporated | PO Box 2037 Ocean City, MD 21842
 Phone(s): 410-524-1518
 | Code(s): G | 
| Off Shore Marine Construction | 102 Chesapeake Estates Drive Stevensville, MD 21666
 Phone(s): 410-643-1151
 | Code(s): A, F | 
| P. Flanigan & Sons, Inc. | 2444 Loch Raven Road Baltimore, MD 21218
 Phone(s): 410-467-5900
 | Code(s): A | 
| P.E.L.A.. Design, Inc. | 1025 St. Paul Street Baltimore, MD 21202
 | Code(s): D | 
| Parsons | 10 East Baltimore Street Suite 801
 Baltimore, MD 21202
 Phone(s): 410-223-2740
 | Code(s): A, B, C, E | 
| Parsons, Brinckerhoff, Quade & Douglas, Inc. | 100 Saint Paul Street Baltimore, MD 21202
 Phone(s): 410-727-5050
 | Code(s): C, F, G | 
| Pedersen & Associates | 1633 Foolish Pleasure Court Annapolis, MD 21401
 Phone(s): 410-626-7852
 | Code(s): C, F | 
| Permit Coordinators | PO Box 240 Riva, MD 21140
 Phone(s): 410-956-5582
 | Code(s): F | 
| Permit Services, Inc | 6800 Rapid Water Way Glen Burnie, MD 21061
 | Code(s): C, F | 
| Permits Plus, Inc. | 487 Kenora Drive Millersville, MD 21108
 Phone(s): 443-271-1528
 [email protected]
 www.PermitsPlusbyTerri.com
 | Code(s): A,F | 
| Photo Science, Inc. | 7840 Airpark Road Gaithersburg, MD 20760
 Phone(s): 301-948-8550
 | Code(s): D | 
| Pile Drivers, Inc. | 829 Central Avenue Linthicum, MD 21090
 Phone(s): 410-789-1370
 | Code(s): A | 
| Potts & Callahan, Inc. | 500 W. 29th Street Baltimore, MD 21211
 Phone(s): 410-235-9400
 | Code(s): A | 
| Q. T. Incorporation | 5700 Coastal Highway Ocean City, MD 21842
 | Code(s): D, G | 
| Randy’s Pier & Seawall | 44800 Contrail Road Hollywood, MD 20636
 | Code(s): A | 
| Redman Johnston Assoc., Ltd. | 416 Goldsborough Street Easton, MD 21601
 Phone(s): 410-822-9630
 | Code(s): C, D, E, F, G | 
| Rehak Bulkhead Contractors | 7201 Bucher Road Baltimore, MD 21219
 Phone(s): 410-477-8868
 | Code(s): A, F | 
| Rehbein & Son, Inc. | PO Box 109 Chase, MD 21027
 Phone(s): 410-335-3575
 | Code(s): A, F | 
| Resource Conservation & Dev. Council | 8133 Elliot Road Suite 201
 Easton, MD 21601
 | Code(s): G | 
| Ronald W. Johnson Assoc., Inc. | 2661 Riva Road Suite 420
 Annapolis, MD 21401
 Phone(s): 410-841-5221,410-266-6612
 | Code(s): C, F | 
| Rummel Klepper & Kahl | 81 Mosher Street Baltimore, MD 21217
 Phone(s): 410-728-2900
 | Code(s): B, C, D, E, F, G | 
| Shoreline Marine Construction | 8376 Dunn Road Pasadena, MD 21122
 Phone(s): 410-255-6901
 | Code(s): A, C | 
| Shorelines, Inc | 8300 Kingsgate Road Potomac, MD 20854
 Phone(s): 301-299-4287
 | Code(s): A,C, E, F | 
| Smith Brothers, Inc. | 4702 Woodfield Road Galesville, MD 20765
 Phone(s): 301-867-1818
 | Code(s): A | 
| Stuphin & Sons | PO Box 104 Wittman, MD 21676
 | Code(s): A, F | 
| T. J. Company, Inc. | PO Box 4234 Silver Spring, MD 20904
 Phone(s): 301-384-9834
 | Code(s): A | 
| Terrain, Inc. | PO Box 6396 Annapolis, MD 21401
 Phone(s): 410-280-0065
 | Code(s): F | 
| Transviron, Inc. | 1624 York Road Lutherville, MD 21093
 Phone(s): 410-321-6961
 | Code(s): C | 
| Trego Construction, Inc. | 906 Talisman Lane Cambridge, MD 21613
 Phone(s): 410-228-4926
 | Code(s): A | 
| Tri State Stone Co., Inc. | 8200 Seven Locks Road Bethesda, MD 20817
 Phone(s): 301-365-2100
 | Code(s): A, C | 
| Tyler Contracting Company | PO Box 539 St. Michaels, MD 21663
 Phone(s): 410-745-2323
 | Code(s): A | 
| Unity Church Hill Nursery | 3621 Church Hill Road Church Hill, MD 21623
 Phone(s): 410-556-6010
 http://www.unitychurchhillnursery.com/
 | Code(s): A, B, C, D, E, F | 
| Unity Landscape Design & Build | 3621 Chuch Hill Road Church Hill, MD 21623
 Phone(s): 410-556-6010
 http://www.unitylandscape.com/
 | Code(s): A, B, C, D, E, F | 
| Vanasse Hungen Brustlin, Inc. | 7188 Chapman Drive Suite 12
 Hayes, VA 23072
 Phone(s): 804-642-0448
 | Code(s): B, C, F | 
| Ventresca & Sons | 5101 Sunnyside Avenue College Park, MD 20740
 Phone(s): 301-474-2171
 | Code(s): A | 
| W. S. Sipple Wetland & Environmental Training & Consulting | 512 Red Bluff Court Millersville, MD 21108
 Phone(s): 410-987-4083
 [email protected]
 http://www.sippleenvironmental.com
 | Code(s): A, B, C, D, E, F | 
| Walsh & Son, Inc. | 1164 Gateway Drive Annapolis, MD 21401
 Phone(s): 410-974-4201
 | Code(s): A | 
| Wards Construction | 200 Wards Road Dowell, MD 20629
 Phone(s): 410-326-4116
 | Code(s): A | 
| Warwick Supply & Equip. Co., Inc. | 206 E. Preston Street Baltimore, MD 21202
 Phone(s): 410-837-8440
 | Code(s): A | 
| Weems Brothers, Inc. | 6201 Old Trappe Road Trappe, MD 21673
 Phone(s): 410-822-0510,410-819-0197
 | Code(s): A, C, F | 
| Wells, Larry | 301 Ann Drive Berlin, MD 21811
 Phone(s): 410-641-1095
 | Code(s): B, C | 
| Whitney, Bailey, Cox & Magnani | 1850 York Road Suite 205
 Timonium, MD 21093
 Phone(s): 410-561-8388
 | Code(s): C | 
| Wildman Environmental Services | PO Box 58 Glenwood, MD 21738
 | Code(s): B, F |