| # | Company name | Role | # of projects |
|---|---|---|---|
| 181 | Bob D. Campbell & Co., Inc. | Structural engineering | 17 |
| 182 | Bob Rude Structures, Inc. | Structural engineering | 16 |
| 183 | Bodo & Assocs | Structural engineering | 4 |
| 184 | Bogdonov Pao Associates Ltd. | Structural engineering | 8 |
| 185 | Bogue Babicki Associates | Structural engineering | 1 |
| 186 | Bogumił Duraj | Structural engineering | 2 |
| 187 | Bole & Wilson | Structural engineering | 1 |
| 188 | Boley Consulting Engineers | Structural engineering | 1 |
| 189 | Boll & Partner Ingenieurgesellschaft mbH | Structural engineering | 18 |
| 190 | Boller & Hodge | Structural engineering | 2 |
| 191 | Bolliger & Mabillard Consulting Engineers Inc. | Structural engineering | 16 |
| 192 | Bollinger + Grohmann GmbH | Structural engineering | 43 |
| 193 | BolwerkWeekers | Structural engineering | 1 |
| 194 | Bonacci Group | Structural engineering | 24 |
| 195 | Bonacci Group | Structural engineering | 5 |
| 196 | Bonestroo, Inc. | Structural engineering | 5 |
| 197 | Boone Consulting Engineers | Structural engineering | 2 |
| 198 | Borm & Associates | Structural engineering | 2 |
| 199 | Bornhorst & Ward Pty Ltd | Structural engineering | 2 |
| 200 | Bossenberger Associates Structural Engineers | Structural engineering | 1 |