Exhibit 99.1 Natus Medical Reports Record Second Quarter Revenue and Earnings; Company Increases 2005 Earnings Guidance SAN CARLOS, Calif.--(BUSINESS WIRE)--July 28, 2005--Natus Medical Incorporated (Nasdaq:BABY) today announced financial results for the three and six months ended June 30, 2005. Natus reported revenue of $10.2 million for the quarter ended June 30, 2005, an increase of $1.8 million or 21% from $8.4 million in the comparable quarter of the previous year. The Company reported net income of $1.3 million, or $0.07 per diluted share, for the second quarter of 2005, compared with a net loss of $3.6 million, or ($0.22) loss per share, for the comparable period in 2004. For the first half of 2005, revenue increased 17% to $19.9 million, from $17.0 million reported in the first half of 2004. Net income for the six months ended June 30, 2005 was $2.2 million, or $0.12 per diluted share, compared to a loss of $4.1 million, or ($0.24) loss per share reported in 2004. Gross margin improved to 61.5% for the three months ended June 30, 2005, compared with 55.4% for the second quarter of 2004. The gross margin for the 2005 period was favorably impacted by reductions in materials costs and the contribution of Fischer-Zoth. For the three months ended June 30, 2005, total operating expenses decreased by $2.5 million, or approximately 33%, to $5.1 million, compared with $7.6 million for the second quarter of 2004. Operating expenses in the second quarter 2004 included $1.6 million of one-time charges; absent those charges the net reduction in operating expenses in the 2005 period was $868,000. As of June 30, 2005, the Company reported cash, cash equivalents and short-term investments of $39.9 million, representing an increase of approximately $4.1 million from the corresponding amount at December 31, 2004. Additionally, the Company reported stockholders' equity of $54.8 million and working capital of $43.5 million as of June 30, 2005. "We are extremely pleased with our results for the second quarter," said Jim Hawkins, President and Chief Executive Officer of Natus Medical. "On a comparable basis, we reduced our year-over-year operating expenses by fifteen percent, while at the same time we saw double-digit top line revenue growth coupled with improving margins. "We continue to benefit from our acquisition of Fischer-Zoth, which was completed in September 2004. Sales of Fischer-Zoth products have exceeded our expectations and have contributed to our improving margins," Hawkins added. Financial Guidance Natus updated financial guidance for 2005. The Company expects to report earnings per diluted share of $0.30 to $0.33 on revenue of $41.6 to $43.0 million in 2005. This compares to a loss per share of $0.14 on revenue of $36.5 million reported for 2004. Natus had previously said it expected to earn $0.28 to $0.31 per diluted share in 2005 on revenue of $41 to $43 million. The Company also updated its guidance for the third and fourth quarters of 2005. For the third quarter of 2005, the Company expects to report diluted earnings per share of $0.07 to $0.09, on revenue of $10.3 to $10.6 million. The Company had previously said it expected to earn $0.07 to $0.08 per diluted share on revenue of $10.2 to $10.4 million. For the fourth quarter 2005, the Company expects to report diluted earnings per share of $0.11 to $0.12, on revenue of $11.4 to $12.5 million. The Company had previously said it expected to earn the same per-share amounts on revenue of $11.3 to $12.9 million. The estimates of earnings per diluted share do not include the impact of expensing employee stock options. The SEC has delayed the effective date for adopting Financial Accounting Standards Board Statement No. 123R, "Share-Based Payment." The Company will be required to begin expensing employee stock options in its first quarterly period in 2006. Conference Call Natus has scheduled an investor conference call to discuss this announcement beginning at 11:00 a.m. Eastern Time today. Individuals interested in listening to the conference call may do so by dialing (866) 831-6162 for domestic callers, or (617) 213-8852 for international callers, and entering reservation code 19239489. A telephone replay will be available for 48 hours following the conclusion of the call by dialing (888) 286-8010 for domestic callers, or (617) 801-6888 for international callers, and entering reservation code 20281994. The conference call also will be available real-time via the Internet at http://investor.natus.com, and a recording of the call will be available on the Company's Web site for 90 days following the completion of the call. About Natus Medical Natus develops, manufactures, and markets products for the detection, treatment, monitoring, and tracking of common disorders in newborns. Natus products are marketed under well-recognized brand names such as ALGO(R), Neometrics(TM), Echo-Screen(R), and neoBLUE(TM). Headquartered in San Carlos, California, Natus markets and sells its products worldwide through a direct sales force in the U.S. and the U.K., and through distributors in over 50 other countries. Additional information about Natus Medical can be found at www.natus.com. This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, particularly statements regarding the expectations, beliefs, plans, intentions and strategies of Natus. These forward-looking statements include, but are not limited to, statements regarding anticipated revenue and profitability for the full-year 2005 as well as for the third and fourth quarters of 2005, and expectations regarding future growth and profitability. These statements relate to future events or Natus' future financial performance or results, and involve known and unknown risks, uncertainties and other factors that may cause actual results, levels of activity, performance, or achievements to differ materially from those expressed or implied by the forward-looking statements. Forward-looking statements are only predictions and the actual events or results may differ materially. Natus cannot provide any assurance that its future results or the results implied by the forward-looking statements will meet expectations. Our future results could differ materially due to a number of factors, including the effects of competition, the demand for our products and services, our ability to expand our sales in international markets, our ability to maintain current sales levels in a mature domestic market, our ability to control costs, and risks associated with bringing new products to market and integrating acquired businesses. Natus disclaims any obligation to update information contained in any forward-looking statement. More information about potential risk factors that could affect the business and financial results of Natus is included in Natus' annual report on Form 10-K for the year ended December 31, 2004, and its quarterly reports on Form 10-Q, and in other reports filed from time to time by Natus with the U.S. Securities and Exchange Commission. NATUS MEDICAL INCORPORATED AND SUBSIDIARIES UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share amounts) June 30, December 31, 2005 2004 ASSETS Current assets: Cash and equivalents $ 27,183 $ 16,239 Short-term investments 12,687 19,504 Accounts receivable, net of allowance for doubtful accounts of $452 in 2005 and $472 in 2004 4,990 6,640 Inventories 3,717 4,347 Prepaid expenses and other current assets 520 625 Total current assets 49,097 47,355 Property and equipment, net 2,348 2,503 Goodwill, intangibles, and other assets 9,045 9,399 Total assets $ 60,490 $ 59,257 LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities: Accounts payable $ 1,344 $ 1,947 Accrued liabilities 4,056 4,303 Deferred revenues 229 279 Total liabilities 5,629 6,529 Commitments and contingencies Stockholders' equity: Common stock, $0.001 par value, 120,000,000 shares authorized; shares issued and outstanding: 17,261,048,in 2005 and 17,140,339 in 2004 89,944 89,373 Accumulated deficit (34,728) (36,902) Accumulated other comprehensive income (355) 257 Total stockholders' equity 54,861 52,728 Total liabilities and stockholders' equity $ 60,490 $ 59,257 NATUS MEDICAL INCORPORATED AND SUBSIDIARIES UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts) Three Months Ended Six Months Ended June June June June 2005 2004 2005 2004 Revenue $ 10,168 $ 8,398 $19,870 $16,969 Cost of revenue 3,919 3,748 7,790 7,506 Gross profit 6,249 4,650 12,080 9,463 Operating expenses: Marketing and selling 2,834 3,110 5,439 6,081 Research and development 1,078 1,072 2,070 1,978 General and administrative 1,187 2,655 2,551 4,024 Restructuring cost - 776 - 776 Total operating expenses 5,099 7,613 10,060 12,859 Income (loss) from operations 1,150 (2,963) 2,020 (3,396) Other income/(expense): Interest income 253 99 436 196 Interest expense - - - (3) Other income, net 23 (177) 32 (101) Total other income/(expense) 276 (78) 468 92 Income (loss) before provision for income tax 1,426 (3,041) 2,488 (3,304) Provision for income tax 162 - 315 1 Income (loss) from continuing operations 1,264 (3,041) 2,173 (3,305) Discontinued operations - (584) - (767) Net income (loss) $ 1,264 $(3,625) $ 2,173 $(4,072) Earnings (loss) per share: Basic: Continuing operations $ 0.07 $ (0.18) $ 0.13 $ (0.20) Discontinued operations $ - $ (0.04) $ - $ (0.05) Net income (loss) $ 0.07 $ (0.22) $ 0.13 $ (0.24) Diluted: Continuing operations $ 0.07 $(0.18) $0.12 $(0.20) Discontinued operations $ - $(0.04) $ - $(0.05) Net income (loss) $ 0.07 $(0.22) $0.12 $(0.24) Weighted-average shares used to compute Basic earnings per share 17,376 16,638 17,267 16,673 Diluted earnings per share 18,912 16,638 18,646 16,673 CONTACT: Natus Medical Incorporated Steven J. Murphy, 650-802-0400 InvestorRelations@Natus.com