The Company has two reportable operating segments based on two primary areas of service. The Engineering and Other Scientific segment is a broad service group providing technical consulting in different practices primarily in engineering. The Environmental and Health segment provides services in the areas of environmental, epidemiology and health risk analysis. This segment provides a wide range of consulting services relating to environmental hazards and risks and the impact on both human health and the environment. Our Chief Executive Officer, the chief operating decision maker, reviews revenues and operating income for each of our reportable segments but does not review total assets in evaluating segment performance and capital allocation.

Segment information for the three months ended April 3, 2020 and March 29, 2019 follows:

	Three Months Ended
(In thousands)	April 3, 2020		March 29, 2019
Engineering and Other Scientific	$	84,887	$	80,254
Environmental and Health		21,066		18,777
Total revenues	$	105,953	$	99,031

	Three Months Ended
(In thousands)	April 3, 2020		March 29, 2019
Engineering and Other Scientific	$	26,641	$	25,974
Environmental and Health		7,253		6,196
Total segment operating income		33,894		32,170
Corporate operating expense		2,094		(16,416	)
Total operating income	$	35,988	$	15,754

	Three Months Ended
(In thousands)	April 3, 2020		March 29, 2019
Engineering and Other Scientific	$	566	$	1,778
Environmental and Health		62		43
Total segment capital expenditures		628		1,821
Corporate capital expenditures		411		4,520
Total capital expenditures	$	1,039	$	6,341

	Three Months Ended
(In thousands)	April 3, 2020		March 29, 2019
Engineering and Other Scientific	$	1,137	$	1,121
Environmental and Health		47		45
Total segment depreciation and amortization		1,184		1,166
Corporate depreciation and amortization		602		424
Total depreciation and amortization	$	1,786	$	1,590

No single client comprised more than 10% of the Company’s revenues during the three months ended April 3, 2020 and March 29, 2019. No single client comprised more than 10% of the Company’s accounts receivable at April 3, 2020 and January 3, 2020.