Exhibit 99

RigNet Announces Third Quarter 2017 Earnings Results

HOUSTON – November 6, 2017 – RigNet, Inc. (NASDAQ: RNET), a global technology company that provides customized communications services, applications and cybersecurity solutions, today reported results for the quarter ended September 30, 2017.

Quarterly revenue was $50.8 million representing an increase of $1.7 million compared to the prior quarter and an increase of $0.2 million compared to the prior year quarter. The revenue increase compared to the prior quarter reflects a $2.6 million increase in Apps & IoT partially offset by a $0.5 million decrease in Systems Integration revenue and a $0.4 million decrease in Managed Services revenue. The increase compared to the prior year quarter reflects a $3.4 million increase in Apps & IoT and a $2.2 million increase in Systems Integration revenue partially offset by a $5.4 million decrease in Managed Services revenue. Revenue increased due to our strategy of growth into the application layer and internet-of-things space coupled with the acquisition of DTS and ESS, partially offset by previously announced sluggishness in offshore drilling.

GAAP net loss attributable to common stockholders was $4.2 million, or $0.23 per share, compared to net loss attributable to common stockholders of $4.2 million, or $0.24 per share, in the prior quarter and net loss attributable to common stockholders of $1.7 million, or $0.09 per share, in the prior year quarter.

Quarterly Adjusted EBITDA was $7.8 million compared to $6.1 million in the prior quarter and $8.5 million in the prior year quarter. The increase compared to the prior quarter was due primarily to increased revenue. The decrease compared to the prior year quarter was due primarily to ongoing operating expenses partially offset by increased revenue.

Capital expenditures were $5.9 million compared to $4.9 million in the prior quarter and $1.9 million in the prior year quarter. Unlevered Free Cash Flow, defined as Adjusted EBITDA less capital expenditures, was $2.0 million compared to $1.1 million in the prior quarter and $6.6 million in the prior year quarter.

15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net

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In the third quarter of 2017, after the acquisition of ESS, the Company reorganized its business and reportable segments into Managed Services, Apps & IoT and Systems Integration. All historical segment financial data has been recast to conform to the current presentation. In the quarter ended September 30, 2017, the Company recorded $0.8 million in acquisition costs and $0.8 million in restructuring charges. In the quarter ended June 30, 2017, the Company recorded $1.9 million in acquisition costs and a gain of $0.8 million for the change in fair value of an earn-out. In the quarter ended September 30, 2016, the Company recorded net restructuring charges of $0.8 million offset by $1.3 million from the change in the fair value of an earn-out. The restructuring charges, acquisition costs and change in fair value of the earn-out are added back to net loss in our non-GAAP measures below.

Steven E. Pickett, chief executive officer and president, commented, “I am proud of how the team responded to our customers’ needs during and in the wake of Hurricane Harvey. Despite those challenges, the team delivered revenue growth for the second consecutive quarter and site count growth for the third consecutive quarter. During the third quarter, our team expanded RigNet’s market position by increasing site count by approximately 12% quarter over quarter while delivering $2.0 million in Unlevered Free Cash Flow.”

A conference call for investors will be held at 11:00 a.m. Eastern Time (10:00 a.m. Central Time) on Tuesday, November 7, 2017, to discuss RigNet’s third quarter 2017 results. The call may be accessed live over the telephone by dialing +1 (877) 845-0777, or, for international callers, +1 (760) 298-5090. Interested parties may also listen to a simultaneous webcast of the conference call by logging onto RigNet’s website at www.rig.net in the Investors – Webcasts and Presentations section. A replay of the conference call webcast will also be available on our website for approximately thirty days following the call.

Non-GAAP Financial Measures

This press release contains the following non-GAAP measures: Adjusted EBITDA and Unlevered Free Cash Flow. Adjusted EBITDA and Unlevered Free Cash Flow are financial measures that are not calculated in accordance with generally accepted accounting principles, or GAAP. We refer you to the Company’s most recent 10-K filing for the year ended December 31, 2016 for a more detailed discussion of the uses and limitations of our non-GAAP financial measures.

We define Adjusted EBITDA as net income (loss) plus interest expense, income tax expense (benefit), depreciation and amortization, impairment of goodwill, intangibles, property, plant and equipment, foreign exchange impact of intercompany financing activities, (gain) loss on retirement of property, plant and equipment, change in fair value of earn-outs and contingent consideration, stock-based compensation, merger and acquisition costs, executive departure costs, restructuring charges and non-recurring items.

We define Unlevered Free Cash Flow as Adjusted EBITDA less capital expenditures. Adjusted EBITDA and Unlevered Free Cash Flow should not be considered as an alternative to net income (loss), operating income (loss) or any other measure of financial performance calculated and presented in accordance with GAAP.

15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net

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About RigNet

RigNet (NASDAQ:RNET) is a global technology company that provides customized communications services, applications and cybersecurity solutions enhancing customer decision making and business performance. RigNet is headquartered in Houston, Texas with operations around the world.

For more information on RigNet, please visit www.rig.net. RigNet is a registered trademark of RigNet, Inc.

Forward Looking Statements

This press release includes “forward-looking statements” within the meaning of the safe harbor provisions of the United States Private Securities Litigation Reform Act of 1995 – that is, statements related to the future, not past, events. Forward-looking statements are based on the current expectations and include any statement that does not directly relate to a current or historical fact. In this context, forward-looking statements often address our expected future business and financial performance, and often contain words such as “anticipate,” “believe,” “intend,” “expect,” “plan” or other similar words. These forward-looking statements involve certain risks and uncertainties that ultimately may not prove to be accurate. Actual results and future events could differ materially from those anticipated in such statements. For further discussion of risks and uncertainties, individuals should refer to RigNet’s SEC filings. RigNet undertakes no obligation and does not intend to update these forward-looking statements to reflect events or circumstances occurring after this press release. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. All forward-looking statements are qualified in their entirety by this cautionary statement.

15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net

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15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net

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15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net

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NOTE: Consolidated balances include the segments above along with corporate activities and intercompany eliminations.

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15115 PARK ROW BLVD, SUITE 300, HOUSTON, TEXAS 77084-4947 PHONE 281.674.0100 FAX 281.674.0101 http://www.rig.net