| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 741,960a | 1,290,248a |
| Accounts receivable, net | 5,170,935a | 4,410,829a |
| Contract assets | 1,208,619a | 1,413,057a |
| Inventories | 260,181a | 175,658a |
| Prepaid expenses and other current assets | 469,338a | 387,105a |
| Total current assets | 7,851,033a | 7,676,897a |
| Property and equipment, net | 2,700,277a | 2,336,943a |
| Operating lease right-of-use assets | 299,895a | 249,443a |
| Other assets, net | 655,709a | 565,625a |
| Other intangible assets, net | 1,860,537a | 1,362,412a |
| Goodwill | 5,316,443a | 4,045,905a |
| Total assets | 18,683,894a | 16,237,225a |
| Liabilities and equity | — | — |
| Current liabilities | — | — |
| Current maturities of long-term debt | 62,680a | 535,202a |
| Current portion of operating lease liabilities | 94,162a | 77,995a |
| Accounts payable and accrued expenses | 3,722,343a | 3,061,242a |
| Contract liabilities | 2,149,328a | 1,538,677a |
| Total current liabilities | 6,028,513a | 5,213,116a |
| Long-term debt, net of current maturities | 4,099,756a | 3,663,504a |
| Operating lease liabilities, net of current portion | 222,359a | 186,996a |
| Deferred income taxes | 353,268a | 254,004a |
| Insurance and other non-current liabilities | 650,281a | 636,250a |
| Total liabilities | 11,354,177a | 9,953,870a |
| Equity | — | — |
| Common stock | 2a | 2a |
| Additional paid-in capital | 3,444,108a | 3,002,652a |
| Retained earnings | 5,707,286a | 4,858,066a |
| Accumulated other comprehensive loss | -372,708a | -282,945a |
| Treasury stock | -1,460,957a | -1,305,534a |
| Total stockholders’ equity | 7,317,731a | 6,272,241a |
| Non-controlling interests | 11,986a | 11,114a |
| Total equity | 7,329,717a | 6,283,355a |
| Total liabilities and equity | 18,683,894a | 16,237,225a |