|        |
|--------|
|        |  |  |  |  |
|   |    | Kforce Inc.1001 East Palm Ave.Tampa, FL 33605(NASDAQ: KFRC) |   |   |

|         |                                                                                                                                                                                   |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Flex revenues of $332.4 million in Q4 2017 increased 4.4%, on a billing day basis, from $328.9 million in Q3 2017 and increased 5.6%, from $314.7 million in Q4 2016. |

|         |                                                                                                                  |
|---------|------------------------------------------------------------------------------------------------------------------|
| • | Quarterly year-over-year growth in Flex revenues for Tech, FA and GS was 5.4%, 0.3% and 25.7%, respectively. |

----

|         |                                                                                                                                                                            |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Tech Flex gross profit margin of 27.2% in Q4 2017 increased 20 basis points from 27.0% in Q3 2017 and decreased 30 basis points from 27.5% in Q4 2016. |

|         |                                                                                                                                                                                                     |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Selling, general and administrative expense as a percentage of revenues in Q4 2017 was 24.0% which remained flat as compared to Q3 2017 and is down 120 basis points from 25.2% in Q4 2016. |

|         |                                                                                          |
|---------|------------------------------------------------------------------------------------------|
| • | Operating cash flows in Q4 2017 were $23.7 million compared to $10.1 million in Q4 2016. |

|         |                                                                                                                                                    |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------|
| • | We repurchased approximately 451 thousand shares of common stock on the open market at a total cost of approximately $10.8 million during Q4 2017. |

|         |                                          |
|---------|------------------------------------------|
| • | Revenues of $343 million to $347 million |

|         |                                      |
|---------|--------------------------------------|
| • | Earnings per share of $0.35 to $0.38 |

|         |                                       |
|---------|---------------------------------------|
| • | Gross profit margin of 29.0% to 29.2% |

|         |                                            |
|---------|--------------------------------------------|
| • | Flex gross profit margin of 26.5% to 26.7% |

|         |                                                            |
|---------|------------------------------------------------------------|
| • | SG&A expense as a percent of revenue of 24.4% to 24.6% |

|         |                                  |
|---------|----------------------------------|
| • | Operating margin of 3.8% to 4.2% |

|         |                             |
|---------|-----------------------------|
| • | Effective tax rate of 26.0% |

----

----

|                                               |
|-----------------------------------------------|
|                                               |  |  |  |  |  |  |  |  |  |  |  |  |
|                                          |   | Three Months Ended |
|                                          |   | Dec. 31, 2017 |   | Sept. 30, 2017 |   | Dec. 31, 2016 |
| Revenue by segment:                           |   |   |   |   |   |   |
|  Technology                              |   | $ | 227,816 |  |   | $ | 229,281 |  |   | $ | 216,807 |  |
|  Finance & accounting                |   | 85,349 |  |   | 85,225 |  |   | 85,794 |  |
|  Government solutions                    |   | 29,421 |  |   | 26,547 |  |   | 23,397 |  |
| Total Net service revenues                    |   | 342,586 |  |   | 341,053 |  |   | 325,998 |  |
| Direct costs of services                      |   | 239,959 |  |   | 236,678 |  |   | 226,350 |  |
| Gross profit                                  |   | 102,627 |  |   | 104,375 |  |   | 99,648 |  |
| GP %                                          |   | 30.0 | % |   | 30.6 | % |   | 30.6 | % |
| Flex GP %                                     |   | 27.8 | % |   | 28.0 | % |   | 28.1 | % |
| Selling, general and administrative expenses  |   | 82,067 |  |   | 81,921 |  |   | 82,010 |  |
| Depreciation and amortization                 |   | 2,042 |  |   | 2,110 |  |   | 2,047 |  |
| Income from operations                        |   | 18,518 |  |   | 20,344 |  |   | 15,591 |  |
| Other expense, net                            |   | 629 |  |   | 1,364 |  |   | 824 |  |
| Income before income taxes                    |   | 17,889 |  |   | 18,980 |  |   | 14,767 |  |
| Income tax expense                            |   | 11,749 |  |   | 8,881 |  |   | 5,528 |  |
| Net income                                    |   | $ | 6,140 |  |   | $ | 10,099 |  |   | $ | 9,239 |  |
|                                          |   |   |   |   |   |   |
| Earnings per share - diluted                  |   | $ | 0.24 |  |   | $ | 0.40 |  |   | $ | 0.36 |  |
|                                          |   |   |   |   |   |   |
| Weighted average shares outstanding - diluted |   | 25,462 |  |   | 25,535 |  |   | 25,821 |  |
| Adjusted EBITDA                               |   | $ | 23,183 |  |   | $ | 24,238 |  |   | $ | 19,283 |  |
|                                          |   |   |   |   |   |   |
| Billing days                                  |   | 61 |  |   | 63 |  |   | 61 |  |

----

|                                                   |
|---------------------------------------------------|
|                                                   |  |  |  |  |  |  |  |  |
|                                              |   | Twelve Months Ended |
|                                              |   | Dec. 31, 2017 |   | Dec. 31, 2016 |
| Revenue by segment:                               |   |   |   |   |
| Technology                                        |   | $ | 907,511 |  |   | $ | 883,477 |  |
| Finance & accounting                     |   | 346,135 |  |   | 337,601 |  |
| Government solutions                              |   | 104,294 |  |   | 98,628 |  |
| Total Net service revenues                        |   | 1,357,940 |  |   | 1,319,706 |  |
| Direct costs of services                          |   | 949,884 |  |   | 911,207 |  |
| Gross profit                                      |   | 408,056 |  |   | 408,499 |  |
| GP %                                              |   | 30.0 | % |   | 31.0 | % |
| Flex GP %                                         |   | 27.5 | % |   | 28.2 | % |
| Selling, general and administrative expenses |   | 331,172 |  |   | 340,742 |  |
| Depreciation and amortization                |   | 8,255 |  |   | 8,701 |  |
| Income from operations                            |   | 68,629 |  |   | 59,056 |  |
| Other expense, net                                |   | 4,535 |  |   | 3,101 |  |
| Income before income taxes                        |   | 64,094 |  |   | 55,955 |  |
| Income tax expense                                |   | 30,809 |  |   | 23,182 |  |
| Net income                                        |   | $ | 33,285 |  |   | $ | 32,773 |  |
|                                              |   |   |   |   |
| Earnings per share - diluted                      |   | $ | 1.30 |  |   | $ | 1.25 |  |
|                                              |   |   |   |   |
| Weighted average shares outstanding - diluted     |   | 25,586 |  |   | 26,274 |  |
| Adjusted EBITDA                                   |   | $ | 85,241 |  |   | $ | 74,506 |  |
|                                              |   |   |   |   |
| Billing days                                      |   | 252 |  |   | 253 |  |

----

|                                                  |
|--------------------------------------------------|
|                                                  |  |  |  |  |  |  |  |  |
|                                             |   | December 31, |
|                                             |   | 2017 |   | 2016 |
| ASSETS                                           |   |   |   |   |
| Current assets:                                  |   |   |   |   |
| Cash and cash equivalents                        |   | $ | 379 |  |   | $ | 1,482 |  |
| Trade receivables, net of allowances             |   | 225,865 |  |   | 206,361 |  |
| Income tax refund receivable                     |   | 7,116 |  |   | 172 |  |
| Prepaid expenses and other current assets        |   | 12,085 |  |   | 10,691 |  |
| Total current assets                             |   | 245,445 |  |   | 218,706 |  |
| Fixed assets, net                                |   | 39,680 |  |   | 43,145 |  |
| Other assets, net                                |   | 38,598 |  |   | 30,511 |  |
| Deferred tax asset, net                          |   | 11,316 |  |   | 23,449 |  |
| Intangible assets, net                           |   | 3,297 |  |   | 3,642 |  |
| Goodwill                                         |   | 45,968 |  |   | 45,968 |  |
| Total assets                                     |   | $ | 384,304 |  |   | $ | 365,421 |  |
| LIABILITIES AND STOCKHOLDERS’ EQUITY       |   |   |   |   |
| Current liabilities:                             |   |   |   |   |
| Accounts payable and other accrued liabilities   |   | $ | 34,873 |  |   | $ | 37,230 |  |
| Accrued payroll costs                            |   | 46,886 |  |   | 44,137 |  |
| Other current liabilities                        |   | 1,960 |  |   | 1,765 |  |
| Income taxes payable                             |   | — |  |   | 221 |  |
| Total current liabilities                        |   | 83,719 |  |   | 83,353 |  |
| Long-term debt - credit facility                 |   | 116,523 |  |   | 111,547 |  |
| Long-term debt - other                           |   | 2,597 |  |   | 3,984 |  |
| Other long-term liabilities                      |   | 47,188 |  |   | 44,801 |  |
| Total liabilities                                |   | 250,027 |  |   | 243,685 |  |
| Commitments and contingencies                    |   |   |   |   |
| Stockholders’ equity:                      |   |   |   |   |
| Preferred stock                                  |   | — |  |   | — |  |
| Common stock                                     |   | 715 |  |   | 713 |  |
| Additional paid-in capital                       |   | 437,394 |  |   | 428,212 |  |
| Accumulated other comprehensive income           |   | 100 |  |   | 184 |  |
| Retained earnings                                |   | 195,143 |  |   | 174,967 |  |
| Treasury stock, at cost                          |   | (499,075 | ) |   | (482,340 | ) |
| Total stockholders’ equity                 |   | 134,277 |  |   | 121,736 |  |
| Total liabilities and stockholders’ equity |   | $ | 384,304 |  |   | $ | 365,421 |  |

----

|                                   |
|-----------------------------------|
|                                   |  |  |  |  |  |  |  |  |  |  |  |  |
|                              |   | Q4 2017 |   | Q3 2017 |   | Q4 2016 |
| Total Firm                        |   |   |   |   |   |   |
| Flex revenue (000’s)        |   | $ | 332,416 |  |   | $ | 328,904 |  |   | $ | 314,714 |  |
| Hours (000’s)               |   | 5,483 |  |   | 5,646 |  |   | 5,598 |  |
| Flex GP %                         |   | 27.8 | % |   | 28.0 | % |   | 28.1 | % |
| Direct Hire revenue (000’s) |   | $ | 10,170 |  |   | $ | 12,149 |  |   | $ | 11,284 |  |
| Placements                        |   | 816 |  |   | 881 |  |   | 876 |  |
| Average fee                       |   | $ | 12,469 |  |   | $ | 13,784 |  |   | $ | 12,891 |  |
| Billing days                      |   | 61 |  |   | 63 |  |   | 61 |  |
| Technology                        |   |   |   |   |   |   |
| Flex revenue (000’s)        |   | $ | 223,897 |  |   | $ | 224,148 |  |   | $ | 212,437 |  |
| Hours (000’s)               |   | 3,101 |  |   | 3,299 |  |   | 3,152 |  |
| Flex GP %                         |   | 27.2 | % |   | 27.0 | % |   | 27.5 | % |
| Direct Hire revenue (000’s) |   | $ | 3,919 |  |   | $ | 5,133 |  |   | $ | 4,370 |  |
| Placements                        |   | 225 |  |   | 303 |  |   | 260 |  |
| Average fee                       |   | $ | 17,423 |  |   | $ | 16,917 |  |   | $ | 16,831 |  |
| Finance & Accounting     |   |   |   |   |   |   |
| Flex revenue (000’s)        |   | $ | 79,098 |  |   | $ | 78,209 |  |   | $ | 78,880 |  |
| Hours (000’s)               |   | 2,382 |  |   | 2,347 |  |   | 2,446 |  |
| Flex GP %                         |   | 28.5 | % |   | 29.0 | % |   | 29.1 | % |
| Direct Hire revenue (000’s) |   | $ | 6,251 |  |   | $ | 7,016 |  |   | $ | 6,914 |  |
| Placements                        |   | 591 |  |   | 578 |  |   | 616 |  |
| Average fee                       |   | $ | 10,583 |  |   | $ | 12,139 |  |   | $ | 11,230 |  |
| Government Solutions              |   |   |   |   |   |   |
| Flex revenue (000’s)        |   | $ | 29,421 |  |   | $ | 26,547 |  |   | $ | 23,397 |  |
| Flex GP %                         |   | 30.3 | % |   | 34.3 | % |   | 30.3 | % |

|                                    |
|------------------------------------|
|                                    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|                               |   | Year-Over-Year Growth Rates |
|                               |   | (Per Billing Day) |
|                               |   | Q4 2017 |   | Q3 2017 |   | Q2 2017 |   | Q1 2017 |   | Q4 2016 |
| Tech Flex                          |   | 5.4 |  % |   | 3.3 |  % |   | 1.5 |  % |   | 2.7 |  % |   | 1.4 |  % |
| Tech Direct Hire                   |   | (10.3 | )% |   | 1.3 |  % |   | 9.3 |  % |   | (4.1 | )% |   | (13.1 | )% |
| Total Tech                         |   | 5.1 |  % |   | 3.3 |  % |   | 1.7 |  % |   | 2.5 |  % |   | 1.1 |  % |
| FA Flex                            |   | 0.3 |  % |   | 4.1 |  % |   | 4.3 |  % |   | 7.5 |  % |   | 2.1 |  % |
| FA Direct Hire                     |   | (9.6 | )% |   | (9.0 | )% |   | (2.4 | )% |   | (11.7 | )% |   | (15.4 | )% |
| Total FA                           |   | (0.5 | )% |   | 2.9 |  % |   | 3.6 |  % |   | 5.8 |  % |   | 0.4 |  % |
| Total Staffing (Total Tech and FA) |   | 3.5 |  % |   | 3.2 |  % |   | 2.2 |  % |   | 3.4 |  % |   | 0.9 |  % |
| GS                                 |   | 25.7 |  % |   | 0.6 |  % |   | (6.4 | )% |   | 6.6 |  % |   | 4.0 |  % |
| Total Firm                         |   | 5.1 |  % |   | 3.0 |  % |   | 1.6 |  % |   | 3.7 |  % |   | 1.1 |  % |

----

|                                           |
|-------------------------------------------|
|                                           |  |  |  |  |  |  |  |  |
| (In Thousands)                            |   | Twelve Months Ended |
|                                      |   | Dec. 31, 2017 |   | Dec. 31, 2016 |
| Net income                                |   | $ | 33,285 |  |   | $ | 32,773 |  |
| Non-cash provisions and other             |   | 29,134 |  |   | 21,093 |  |
| Changes in operating assets/liabilities   |   | (33,080 | ) |   | (14,043 | ) |
| Net cash provided by operating activities |   | 29,339 |  |   | 39,823 |  |
| Capital expenditures                      |   | (5,846 | ) |   | (12,420 | ) |
| Free cash flow                            |   | 23,493 |  |   | 27,403 |  |
| Change in debt                            |   | 4,976 |  |   | 31,075 |  |
| Repurchases of common stock               |   | (14,622 | ) |   | (46,013 | ) |
| Cash dividend                             |   | (12,144 | ) |   | (12,447 | ) |
| Other                                     |   | (2,806 | ) |   | (33 | ) |
| Change in cash and cash equivalents       |   | $ | (1,103 | ) |   | $ | (15 | ) |

----

|                                    |
|------------------------------------|
|                                    |  |  |  |  |  |  |  |  |  |  |  |  |
| (In Thousands)                     |   | Three Months Ended |
|                               |   | Dec. 31, 2017 |   | Sept. 30, 2017 |   | Dec. 31, 2016 |
| Net income                         |   | $ | 6,140 |  |   | $ | 10,099 |  |   | $ | 9,239 |  |
| Depreciation and amortization |   | 2,135 |  |   | 2,165 |  |   | 2,094 |  |
| Stock-based compensation expense   |   | 1,933 |  |   | 1,798 |  |   | 1,663 |  |
| Interest expense, net              |   | 1,226 |  |   | 1,295 |  |   | 759 |  |
| Income tax expense                 |   | 11,749 |  |   | 8,881 |  |   | 5,528 |  |
| Adjusted EBITDA                    |   | $ | 23,183 |  |   | $ | 24,238 |  |   | $ | 19,283 |  |

|                                    |
|------------------------------------|
|                                    |  |  |  |  |  |  |  |  |
| (In Thousands)                     |   | Twelve Months Ended |
|                               |   | Dec. 31, 2017 |   | Dec. 31, 2016 |
| Net income                         |   | $ | 33,285 |  |   | $ | 32,773 |  |
| Depreciation and amortization |   | 8,508 |  |   | 8,796 |  |
| Stock-based compensation expense   |   | 7,600 |  |   | 6,705 |  |
| Interest expense, net              |   | 5,039 |  |   | 3,050 |  |
| Income tax expense                 |   | 30,809 |  |   | 23,182 |  |
| Adjusted EBITDA                    |   | $ | 85,241 |  |   | $ | 74,506 |  |

----

|                                                 |
|-------------------------------------------------|
|                                                 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| (In Thousands, Except Per Share Amounts)        |   | Three Months Ended December 31, |
|                                            |   | 2017 |   | 2016 |
|                                            |   | Reported (GAAP) |   | Adjustments (1) |   | Adjusted (Non-GAAP) |   | Reported (GAAP) (2) |
| Reconciliation of Tax Impact and Profitability: |   |   |   |   |   |   |   |   |
| Income before income taxes                      |   | $ | 17,889 |  |   | $ | — |  |   | $ | 17,889 |  |   | $ | 14,767 |  |
| Income tax expense                              |   | $ | 11,749 |  |   | $ | (5,360 | ) |   | $ | 6,389 |  |   | $ | 5,528 |  |
| Effective tax rate                              |   | 65.7 | % |   | (30.0 | )% |   | 35.7 | % |   | 37.4 | % |
| Net income                                      |   | $ | 6,140 |  |   | $ | 5,360 |  |   | $ | 11,500 |  |   | $ | 9,239 |  |
| Earnings per share - diluted                    |   | $ | 0.24 |  |   | $ | 0.21 |  |   | $ | 0.45 |  |   | $ | 0.36 |  |

|                                                    |
|----------------------------------------------------|
|                                                    |  |  |  |  |  |  |  |  |  |  |  |  |
| (In Thousands, Except Per Share Amounts)           |   | Twelve Months Ended |
|                                               |   | December 31, 2017 |
|                                               |   | Reported (GAAP) |   | Adjustments |   | Adjusted (Non-GAAP) |
| Reconciliation of Revenue and Gross Profit:        |   |   |   |   |   |   |
| Net service revenues (3)                           |   | $ | 1,357,940 |  |   | $ | 1,000 |  |   | $ | 1,358,940 |  |
| Gross profit (3)                                   |   | $ | 408,056 |  |   | $ | 713 |  |   | $ | 408,769 |  |
| GP %                                               |   | 30.0 | % |   | 0.1 |  % |   | 30.1 | % |
| Flex GP %                                          |   | 27.5 | % |   | — |  % |   | 27.5 | % |
|                                               |   |   |   |   |   |   |
| Reconciliation of SG&A and Operating Margin:   |   |   |   |   |   |   |
| Selling, general & administrative expenses (4) |   | $ | 331,172 |  |   | $ | 1,156 |  |   | $ | 332,328 |  |
| SG&A as a percentage of net service revenues   |   | 24.4 | % |   | 0.1 |  % |   | 24.5 | % |
| Income from operations                             |   | $ | 68,629 |  |   | $ | (443 | ) |   | $ | 68,186 |  |
| Operating margin                                   |   | 5.1 | % |   | (0.1 | )% |   | 5.0 | % |
|                                               |   |   |   |   |   |   |
| Reconciliation of Tax Impact and Profitability:    |   |   |   |   |   |   |
| Income before income taxes                         |   | $ | 64,094 |  |   | $ | (443 | ) |   | $ | 63,651 |  |
| Income tax expense (5)                             |   | $ | 30,809 |  |   | $ | (7,200 | ) |   | $ | 23,609 |  |
| Effective tax rate                                 |   | 48.1 | % |   | (11.0 | )% |   | 37.1 | % |
| Net income                                         |   | $ | 33,285 |  |   | $ | 6,757 |  |   | $ | 40,042 |  |
| Earnings per share - diluted                       |   | $ | 1.30 |  |   | $ | 0.27 |  |   | $ | 1.57 |  |

----

|                                                    |
|----------------------------------------------------|
|                                                    |  |  |  |  |  |  |  |  |  |  |  |  |
| (In Thousands, Except Per Share Amounts)           |   | Twelve Months Ended |
|                                               |   | December 31, 2016 |
|                                               |   | Reported (GAAP) |   | Adjustments |   | Adjusted (Non-GAAP) |
| Reconciliation of SG&A and Operating Margin:   |   |   |   |   |   |   |
| Selling, general & administrative expenses (6) |   | $ | 340,742 |  |   | $ | (6,015 | ) |   | $ | 334,727 |  |
| SG&A as a percentage of net service revenues   |   | 25.8 | % |   | (0.4 | )% |   | 25.4 | % |
| Income from operations                             |   | $ | 59,056 |  |   | $ | 6,015 |  |   | $ | 65,071 |  |
| Operating margin                                   |   | 4.5 | % |   | 0.4 |  % |   | 4.9 | % |
|                                               |   |   |   |   |   |   |
| Reconciliation of Tax Impact and Profitability:    |   |   |   |   |   |   |
| Income before income taxes                         |   | $ | 55,955 |  |   | $ | 6,015 |  |   | $ | 61,970 |  |
| Income tax expense (7)                             |   | 23,182 |  |   | 681 |  |   | 23,863 |  |
| Effective tax rate                                 |   | 41.4 | % |   | (2.9 | )% |   | 38.5 | % |
| Net income                                         |   | $ | 32,773 |  |   | $ | 5,334 |  |   | $ | 38,107 |  |
| Earnings per share - diluted                       |   | $ | 1.25 |  |   | $ | 0.20 |  |   | $ | 1.45 |  |