Environmental firms.
ENVIRONMENTAL FIRMS
Ranked by number of L.A. County environmental employees
Rank Company (Ranking in 2006) Employees Revenues
* name * environmental (county/total)
* address * L.A. County * 2006
* Web site
* companywide (millions)
* 2005
(millions)
1 Waste Management Inc. (1) 1,180 WND/$13,400
9081 Tujunga Ave. 1,180 WND/$13,200
Sun Valley 91352 50,000
wm.com
2 SCS Engineers (2) 232 22.6/113
3900 Kilroy Airport Way, 255 18.4/92
Suite 100 Long Beach 90806 570
scsengineers.com
3 URS Corp. (13) 150 WND/4,240
915 Wilshire Blvd., 300 WND/3,917.6
Suite 700 Los Angeles 90017 29,000
urscorp.com
4 California Waste 135 12.5/12.5
Services (3) 135 14/14
621 W. 152nd St. 135
Gardena 90247
californiawasteservices.com
5 Earth Tech Inc. (5) 125 35/1,200
300 Oceangate, Suite 700 150 35/1,346
Long Beach 90802 7,000
earthtech.com
6 SOS Ecology Management Inc. 95 WND/WND
201 E. Gardena Blvd. 180 WND/WND
Gardena 90248 590
sosmetals.com
7 Tetra Tech Inc. (8) 90 12/958.6
3475 E. Foothill Blvd. 252 20/899.2
Pasadena 91107 7,500
tetratech.com
8 Bryan A. Stirrat & 85 21.5/26.2
Associates (7) 85 17.6/23.5
1360 Valley Vista Drive 127
Diamond Bar 91765
bas.com
9 Psomas (9) 82 30.1/114.7
11444 W. Olympic Blvd., 194 21.5/96.4
Suite 750 Los Angeles 90064 847
psomas.com
10 Environ International 75 19.8/133.6
Corp. (14) 75 15/70
707 Wilshire Blvd., WND
Suite 4950
Los Angeles 90017
environcorp.com
11 Parsons (6) 75 WND/3,000.0 (1)
100 W. Walnut St. 1,000 WND/WND
Pasadena 91124 11,600
parsons.com
12 AEI Consultants 61 6.1/15.7
2447 Pacific Coast Highway 61 4.2/11.4
Hermosa Beach 90254 170
aeiconsultants.com
13 SAIC 50 WND/8,300
600 S. Lake Ave., Suite 200 250 WND/7,800
Pasadena 91106 44,000
saic.com
14 Crosby & Overton Inc. 44 WND/9
1610 W. 17th St. 44 WND/9
Long Beach 90813 65
crosbyoverton.com
15 Lee & Ro Inc. (11) 44 WND/13.1
1199 S. Fullerton Road 44 9.6/12.2
City of Industry 91748 92
lee-ro.com
16 Delta Environmental 43 WND/WND
Constultants Inc. (17) 43 WND/WND
911 S. Primrose Ave., 640
Suite K Monrovia 91016
deltaenv.com
17 Sapphos Environmental Inc. 42 6.2/6.2
133 Martin Alley 42 4.2/4.2
Pasadena 91775 42
sapphosenvironmental.com
18 PCR Services Corp. (16) 37 WND/WND
233 Wilshire Blvd., 37 WND/WND
Suite 130 77
Santa Monica 90401
pcrnet.com
19 Jones & Stokes (19) 30 4.8/60
811 W. Seventh St., 30 4.2/55.2
Suite 800 Los Angeles 90017 525
jonesandstokes.com
20 A.Q. Environmental (15) 24 3.8/4.9
4924 Balboa Blvd., 28 4.3/5.3
Suite 348 Encino 91316 48
hazwaste.com
Rank Company (Ranking in 2006) Services Offered
* name (partial list)
* address
* Web site
1 Waste Management Inc. (1) solid waste collection and
9081 Tujunga Ave. disposal, hazardous waste
Sun Valley 91352 disposal, recycling, electrical
wm.com power generation
2 SCS Engineers (2) solid and hazardous waste
3900 Kilroy Airport Way, engineering and site remediation,
Suite 100 Long Beach 90806 landfill design and permit
scsengineers.com assistance, solid waste
management, renewable energy,
sustainability
3 URS Corp. (13) environmental compliance,
915 Wilshire Blvd., permitting, planning,
Suite 700 Los Angeles 90017 investigation and remediation,
urscorp.com agency negotiation, construction
management
4 California Waste construction and demolition
Services (3) material processing and hauling
621 W. 152nd St.
Gardena 90247
californiawasteservices.com
5 Earth Tech Inc. (5) environmental planning and
300 Oceangate, Suite 700 analysis, remediation and
Long Beach 90802 restoration, solid/hazardous
earthtech.com waste management, emergency
response, compliance
6 SOS Ecology Management Inc. comprehensive recycling programs,
201 E. Gardena Blvd. hazardous waste management, and
Gardena 90248 transportation
sosmetals.com
7 Tetra Tech Inc. (8) design, consulting, studies,
3475 E. Foothill Blvd. construction, remediation,
Pasadena 91107 hazardous waste, coastal
tetratech.com engineering, water treatment/
supply, environmental science
8 Bryan A. Stirrat & landfill design, permitting, and
Associates (7) construction, landfill gas
1360 Valley Vista Drive management, hazardous waste site
Diamond Bar 91765 characterization and remediation,
bas.com control system operation and
maintenance
9 Psomas (9) CEQA/NEPA documentation,
11444 W. Olympic Blvd., permitting and regulatory
Suite 750 Los Angeles 90064 compliance, biological resource
psomas.com management, water resource
management
10 Environ International air and water quality, regulatory
Corp. (14) compliance, site assessment,
707 Wilshire Blvd., hazardous waste management,
Suite 4950 remediation
Los Angeles 90017
environcorp.com
11 Parsons (6) impact statements, environmental/
100 W. Walnut St. ordinance remediation, compliance
Pasadena 91124 services, biological assesments,
parsons.com water evaluation, ecosystem
restoration
12 AEI Consultants environmental and engineering due
2447 Pacific Coast Highway diligence, site investigation and
Hermosa Beach 90254 remediation, environmental
aeiconsultants.com construction, asbestos, mold and
lead
13 SAIC CEQA/NEPA compliance, permitting
600 S. Lake Ave., Suite 200 and regulatory compliance, air
Pasadena 91106 quality services, sustainability
saic.com and climate change services,
biological resource management,
water
14 Crosby & Overton Inc. treatment, storage and disposal
1610 W. 17th St. of hazardous waste
Long Beach 90813
crosbyoverton.com
15 Lee & Ro Inc. (11) municipal water, wastewater and
1199 S. Fullerton Road environmental engineering
City of Industry 91748
lee-ro.com
16 Delta Environmental assessment/remediation,
Constultants Inc. (17) compliance services,
911 S. Primrose Ave., reimbursement management,
Suite K Monrovia 91016 realrisk estate services,
deltaenv.com management consulting,
management, air quality services
17 Sapphos Environmental Inc. planning, resource management,
133 Martin Alley environmental compliance
Pasadena 91775
sapphosenvironmental.com
18 PCR Services Corp. (16) environmental planning and
233 Wilshire Blvd., documentation CEQA/NEPA
Suite 130 compliance, biological services,
Santa Monica 90401 air quality services,
pcrnet.com environmental and architectural
acoustics, cultural resources
19 Jones & Stokes (19) environmental and transportation
811 W. Seventh St., planning, historic architecture
Suite 800 Los Angeles 90017 and archaeology, natural
jonesandstokes.com resources management
20 A.Q. Environmental (15) mold cleanup, remediation, water
4924 Balboa Blvd., and fire damage restoration,
Suite 348 Encino 91316 floods, dry-out building,
hazwaste.com restoration equipment rental,
asbestos, lead paint, demolition,
consulting, assessments
Rank Company (Ranking in 2006) Types of Clients
* name (partial list)
* address
* Web site
1 Waste Management Inc. (1) commercial, government, health
9081 Tujunga Ave. care, industrial, manufacturers,
Sun Valley 91352 real estate, residential,
wm.com schools/universities
2 SCS Engineers (2) environmental consultants,
3900 Kilroy Airport Way, government, real estate,
Suite 100 Long Beach 90806 environmental contractors,
scsengineers.com landfill gas to energy,
brownfields remediation
3 URS Corp. (13) commercial, environmental
915 Wilshire Blvd., consultants, government, health
Suite 700 Los Angeles 90017 care, industrial, manufacturers,
urscorp.com real estate, residential,
schools/universities, ports
4 California Waste commercial, government,
Services (3) industrial, manufacturers, real
621 W. 152nd St. estate, residential, schools/
Gardena 90247 universities
californiawasteservices.com
5 Earth Tech Inc. (5) commercial, environmental
300 Oceangate, Suite 700 consultants, government, health
Long Beach 90802 care, industrial, manufacturers,
earthtech.com real estate, schools/
universities, airports, utilities
6 SOS Ecology Management Inc. commercial, environmental
201 E. Gardena Blvd. consultants, government,
Gardena 90248 industrial, manufacturers, real
sosmetals.com estate
7 Tetra Tech Inc. (8) commercial, environmental
3475 E. Foothill Blvd. consultants, government,
Pasadena 91107 industrial, manufacturers, real
tetratech.com estate, residential, schools/
universities
8 Bryan A. Stirrat & commercial, environmental
Associates (7) consultants, government,
1360 Valley Vista Drive industrial, manufacturers, real
Diamond Bar 91765 estate, residential, schools/
bas.com universities
9 Psomas (9) commercial, government, health
11444 W. Olympic Blvd., care, industrial, real estate,
Suite 750 Los Angeles 90064 residential, schools/
psomas.com universities, public/private
utilities
10 Environ International commercial, government, health
Corp. (14) care, industrial, manufacturers,
707 Wilshire Blvd., real estate, petrochemicals
Suite 4950
Los Angeles 90017
environcorp.com
11 Parsons (6) commercial, government, health
100 W. Walnut St. care, industrial, schools/
Pasadena 91124 universities
parsons.com
12 AEI Consultants commercial, environmental
2447 Pacific Coast Highway consultants, government, real
Hermosa Beach 90254 estate, residential, schools/
aeiconsultants.com universities, developers
13 SAIC commercial, government,
600 S. Lake Ave., Suite 200 industrial, manufacturers, real
Pasadena 91106 estate, residential
saic.com
14 Crosby & Overton Inc. commercial, environmental
1610 W. 17th St. consultants, government, health
Long Beach 90813 care, industrial, manufacturers,
crosbyoverton.com residential, schools/universities
15 Lee & Ro Inc. (11) commercial, environmental
1199 S. Fullerton Road consultants, government, schools/
City of Industry 91748 universities
lee-ro.com
16 Delta Environmental commercial, environmental
Constultants Inc. (17) consultants, government, health
911 S. Primrose Ave., care, industrial, manufacturers,
Suite K Monrovia 91016 real estate, residential, energy,
deltaenv.com transportation
17 Sapphos Environmental Inc. commercial, environmental
133 Martin Alley consultants, government, health
Pasadena 91775 care, schools/universities
sapphosenvironmental.com
18 PCR Services Corp. (16) commercial, environmental
233 Wilshire Blvd., consultants, government, health
Suite 130 care, industrial, manufacturers,
Santa Monica 90401 real estate, residential,
pcrnet.com schools/universities,
entertainment
19 Jones & Stokes (19) commercial, environmental
811 W. Seventh St., consultants, government, real
Suite 800 Los Angeles 90017 estate, residential, schools/
jonesandstokes.com universities
20 A.Q. Environmental (15) commercial, environmental
4924 Balboa Blvd., consultants, government, health
Suite 348 Encino 91316 care, industrial, manufacturers,
hazwaste.com real estate, residential,
schools/universities
Rank Company (Ranking in 2006) Profile Top Local
* name * year Executive
* address established * name
* Web site * offices * title
(county/total) * phone
* headquarters
1 Waste Management Inc. (1) 1969 Larry Metter
9081 Tujunga Ave. 17/1,100 vice president
Sun Valley 91352 Houston (818) 767-5867
wm.com
2 SCS Engineers (2) 1970 Robert P.
3900 Kilroy Airport Way, 2/40 Stearns
Suite 100 Long Beach 90806 Long Beach chairman
scsengineers.com (562) 426-9544
3 URS Corp. (13) 1904 Steve Pearson
915 Wilshire Blvd., 3/300 sr. vice
Suite 700 Los Angeles 90017 San Francisco president
urscorp.com (213) 996-2200
4 California Waste 1999 Eric Casper
Services (3) 1/1 president
621 W. 152nd St. Gardena (800) 839-5550
Gardena 90247
californiawasteservices.com
5 Earth Tech Inc. (5) 1970 Alan Krusi
300 Oceangate, Suite 700 2/130 president
Long Beach 90802 Long Beach (562) 951-2000
earthtech.com
6 SOS Ecology Management Inc. 1988 Don Shadrow
201 E. Gardena Blvd. 1/8 president
Gardena 90248 Gardena (310) 217-8848
sosmetals.com
7 Tetra Tech Inc. (8) 1966 Dan Batrack
3475 E. Foothill Blvd. 2/250 ceo, coo
Pasadena 91107 Pasadena (626) 351-4664
tetratech.com
8 Bryan A. Stirrat & 1984 Bryan A.
Associates (7) 2/6 Stirrat
1360 Valley Vista Drive Diamond Bar president
Diamond Bar 91765 (909) 860-7777
bas.com
9 Psomas (9) 1946 Jacob Lipa
11444 W. Olympic Blvd., 3/23 president
Suite 750 Los Angeles 90064 Los Angeles (310) 954-3700
psomas.com
10 Environ International 1989 Joseph W. Hower
Corp. (14) 1/35 principal
707 Wilshire Blvd., Los Angeles (213) 943-6300
Suite 4950
Los Angeles 90017
environcorp.com
11 Parsons (6) 1944 James F.
100 W. Walnut St. 15/350 McNulty
Pasadena 91124 Pasadena chairman, ceo
parsons.com (626) 440-2000
12 AEI Consultants 1992 Joseph Derhake
2447 Pacific Coast Highway 1/9 P.E. principal
Hermosa Beach 90254 Walnut Creek (310) 798-4255
aeiconsultants.com
13 SAIC 1969 Scott Weaver
600 S. Lake Ave., Suite 200 2/150 regional
Pasadena 91106 San Diego manager
saic.com (626) 440-8349
14 Crosby & Overton Inc. 1950 Mike Shloub
1610 W. 17th St. 1/2 president
Long Beach 90813 Long Beach (562) 755-3789
crosbyoverton.com
15 Lee & Ro Inc. (11) 1979 M. Steve Ro
1199 S. Fullerton Road 1/4 of ceo, president
City of Industry 91748 City Industry (626) 912-3391
lee-ro.com
16 Delta Environmental 1986 Brad Clark
Constultants Inc. (17) 1/40 unit manager
911 S. Primrose Ave., St. Paul, Minn. (800) 477-7411
Suite K Monrovia 91016
deltaenv.com
17 Sapphos Environmental Inc. 1992 Marie Campbell
133 Martin Alley 2/2 president
Pasadena 91775 Pasadena (626) 683-3547
sapphosenvironmental.com
18 PCR Services Corp. (16) 1974 Gregory J.
233 Wilshire Blvd., 2/3 Broughton
Suite 130 Santa Monica president
Santa Monica 90401 (310) 451-4488
pcrnet.com
19 Jones & Stokes (19) 1970 Lee Lisecki
811 W. Seventh St., 1/19 branch leader
Suite 800 Los Angeles 90017 Sacramento (213) 627-5376
jonesandstokes.com
20 A.Q. Environmental (15) 1988 Max Gonab
4924 Balboa Blvd., 2/6 project manager
Suite 348 Encino 91316 Los Angeles (800) 606-8007
hazwaste.com
WND--Would Not Disclose
Note: Information on this list was provided by the companies
themselves. Companies are ranked by the number of L.A. County
employees involved in environmental services and 2006 L.A. County
revenues, respectively.
To the best of our knowledge, this information is accurate as of press
time. While every effort is made to ensure the accuracy and
thoroughness of the list, omissions and typographical errors sometimes
occur. Please send corrections or additions on company letterhead to
the Research Department, Los Angeles Business Journal, 5700 Wilshire
Blvd., Suite 170, Los Angeles 90036. [c] 2007 Los Angeles Business
Journal. This list may not be reprinted in whole or in part without
prior written permission from the editor. Reprints are available from
Wright's Reprints, (877) 652-5295.
(1) Information has been obtained from Hoovers company profiles.
Reprinted from the July 9, 2007 issue
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