GAAP TO NON-GAAP RECONCILIATION (CONTINUED)

(Dollars in thousands, except per share data)

(Unaudited)

First Quarter of

2014

2013

% of Segment

% of Segment

SEGMENT OPERATING INCOME:

Revenue

Revenue

Engineering and Construction

GAAP operating income before corporate allocations:

$ 57,515

18.6%

$ 42,973

16.1%

 Stock-based compensation

( J )

3,591

1.2%

2,862

1.1%

Non-GAAP operating income before corporate allocations:

$ 61,106

19.8%

$ 45,835

17.2%

Field Solutions

GAAP operating income before corporate allocations:

$ 52,937

38.3%

$ 59,526

40.4%

 Stock-based compensation

( J )

770

0.6%

717

0.4%

Non-GAAP operating income before corporate allocations:

$ 53,707

38.9%

$ 60,243

40.8%

Mobile Solutions

GAAP operating income before corporate allocations:

$ 16,170

13.6%

$ 11,573

10.5%

 Stock-based compensation

( J )

1,178

1.0%

912

0.8%

Non-GAAP operating income before corporate allocations:

$ 17,348

14.6%

$ 12,485

11.3%

Advanced Devices

GAAP operating income before corporate allocations:

$ 11,676

30.2%

$   6,485

20.5%

 Stock-based compensation

( J )

496

1.3%

849

2.7%

Non-GAAP operating income before corporate allocations:

$ 12,172

31.5%

$   7,334

23.2%