In light of the nation's economy over the past two years, it should come as no surprise that many of the firms in this year's Waste Age 100 — which ranks firms based on annual revenue — experienced revenue decreases in 2009.

Houston-based Waste Management — the firm that has long topped the list — brought in $11.79 billion in revenue in 2009, down from $13.39 billion in 2008. Cincinnati-based Rumpke, which comes in at No. 15, saw its revenue drop from $407 billion in 2008 to $396 million last year, and San Francisco-based Recology — No. 12 on this year's list — experienced a $20 million decline in revenue.

Moving down the list, Houston-based WCA Waste Corp., which sits in the No. 22 spot, took in $194 million in 2009 — down from $208 million in 2008.

Will the revenue decreases continue in 2010? Some early returns give hope they may not.

For example, Waste Management brought in 4.4 percent more revenue in the first quarter of this year than it did during the same period in 2009. Folsom, Calif.-based Waste Connections, Toronto-based IESI-BFC and WCA Waste also were among the publicly traded companies that announced first-quarter revenue increases.

In a statement accompanying his company's first-quarter earnings report, Waste Management CEO David Steiner noted that the decline in waste volumes had slowed, and he predicted that volumes would show growth during the second half of this year.

Such a development would be welcome news indeed.

The 100 Largest Solid Waste Firms

Click on any company below to see its profile and view recent news.

Rank Company
1 Waste Management
2 Republic Services Inc.
3 Veolia Environmental Services North America Corp.
4* Covanta Holding Corp.
5 Waste Connections Inc.
6 Stericycle Inc.
7* Clean Harbors Inc.
8 IESI-BFC Ltd.
9 Safety-Kleen Systems Inc.
10 Casella Waste Systems Inc.
11 PSC Environmental Services
12 Recology Inc. (formerly Norcal Waste Systems Inc.)
13* Newpark Resources Inc.
14 Waste Services Inc.
15 Rumpke Consolidated Companies Inc.
16 Waste Industries USA Inc.
17 Advanced Disposal Services Inc.
18 EQ - The Environmental Quality Company
19 Strategic Materials Inc.
20 Schupan & Sons Inc.
21 WCA Waste Corporation
22* Industrial Services of America
23 EnviroSolutions Inc.
24 Interstate Waste Services
25 Solid Waste Services Inc. (dba J. P. Mascaro & Sons)
26 CSX Transportation
27* US Ecology Inc. (formerly American Ecology)
28 Appliance Recycling Centers of America Inc.
29 Perma-Fix Environmental Services Inc.
30 Heritage - Crystal Clean
31 Consolidated Waste Service Corp.
32 Galaxy Recycling Inc.
33 Ming's Recycling
34 Environmental Logistics Services LLC
35 Action Environmental Group Inc.
36 (tie) Coulter Companies Inc.
36 (tie) Emerald Waste Services LLC
38 Heritage - WTI Inc.
39 Santek Environmental Inc.
40 Hudson Baylor Corporation
41 Soil Safe Inc.
42 E.L. Harvey & Sons Inc.
43 SWeeDee
44 American Waste Control Inc.
45 Custom Polymers Inc.
46 California Waste Solutions Inc.
47 Omni Resource Recovery Inc.
48 (tie) J & J Refuse Inc.
48 (tie) Triad Transport Inc.
50 Aspen Waste Systems Inc.
51 RR Waste Solutions
52 Bertolotti Disposal Inc.
53 Inland Service Corporation
54 (tie) American Waste Management Services Inc.
54 (tie) Ches-Mont Disposal LLC
56 Sanitary Service Co.
57 Blue Diamond Disposal Inc.
58 Disposal Management
59 BBI Waste Industries
60 WARE Disposal Inc.
61 Nicos Polymers Group
62 Independent Disposal Services
63 AERC Recycling Solutions
64 Nortech Waste LLC
65 Waste Haulers LLC
66 Mass Hauling & Disposal / Capital Paper Recycling
67 Artistic Solid Waste Services
68 (tie) Gallegos Sanitation Inc.
68 (tie) Alpine Waste & Recycling
70 Environmental Enterprises Inc.
71 Pacific Rim Recycling
72 Smith Systems Transportation Inc.
73 Bavarian Waste Services
74 Apple Valley Waste Service Inc.
75 Cali Carting Inc.
76 (tie) Industrial Disposal Services / Broad Run Recycling
76 (tie) T. Farese & Son's Inc. / Direct Waste & Recycling Services LLC
78 AAA Carting & Rubbish Removal Inc.
79 kmG Hauling Inc.
80 Pellitteri Waste Systems Inc.
81 Lemcor Inc.
82 Al Clawson Disposal Inc.
83 TIER Holdings LLC
84 Grand Sanitation Service Inc.
85 ICE Service Group Inc.
86 Solid Wastes of Willits Inc.
87 DNT Environmental Services Inc.
88 KLT Industries Inc.
89 C&C Disposal Service Inc.
90 Container First Services / Tri City Regional Landfill
91 (tie) Empire Waste Ltd.
91 (tie) Eco-Feed Inc.
91 (tie) National Recycling Network
94 (tie) MS Industrial Waste Disposal Inc.
94 (tie) Allwaste Services Inc.
96 Pratt Trucking Company
97 Ruan
98 Disposal Consultant Services
99 FER Inc.
100 Taylorsville Road Hardfill

Recent Waste Age 100