Exhibit 99.1

ARRIS Announces Preliminary and Unaudited Fourth Quarter and Full Year 2015 Results

SUWANEE, Ga – February 17, 2016 – ARRIS International plc (NASDAQ: ARRS) today announced preliminary and unaudited financial results for the fourth quarter and full year 2015.

Financial Highlights

“Our fourth quarter sales were in line with our expectations, and our earnings were stronger than anticipated as a result of stronger CCAP E6000 sales, as well as the full year impact of R&D tax credits enacted by Congress late in the year.” said Bob Stanzione, ARRIS Chairman and CEO. “We closed the Pace acquisition on January 4 and have made substantial progress on our integration activities. With respect to the first quarter 2016, we project that revenues for the Company will be in the range of $1,560 to $1,610 million, with adjusted net income per diluted share in the range of $0.37 to $0.42 and GAAP net income per diluted share in the range of $0.01 to $0.06.”

The Company also announced that on February 16, 2016, the Board of Directors of ARRIS approved a new $300 million share repurchase authorization replacing all prior programs.

ARRIS will host its 2016 Investor & Analyst Day on Wednesday, March 16 at The Westin at Times Square, New York City. The event, which is open to investors and analysts, will begin at 7:30 a.m. Eastern with breakfast and registration. Presentations will begin at 8:00 am and conclude at approximately 12:00 pm. A live audio webcast of the conference with slide presentations will be accessible via the Investors section of Company’s web site: www.arris.com. Registration for the event can be found at www.etouches.com/161362.

Revenues in the fourth quarter 2015 were $1,101.7 million as compared to fourth quarter 2014 revenues of $1,263.4 million. Third quarter 2015 revenues were $1,221.4 million.

For the full year 2015 and 2014, revenues were $4,798.3 million and $5,322.9 million, respectively.

Adjusted net income (a non-GAAP measure) in the fourth quarter 2015 was $0.62 per diluted share, compared to $0.78 per diluted share for the fourth quarter 2014. Adjusted net income (a non-GAAP measure) for the third quarter 2015 was $0.56 per diluted share. The fourth quarter 2015 adjusted net income includes a $0.14 benefit related to the full year impact of research & development tax credits resulting from Congress passing legislation in December 2015.

Full year, adjusted net income was $2.16 per diluted share for 2015 as compared to $2.76 per diluted share in 2014. A reconciliation of adjusted net income to GAAP net income per diluted share is attached to this release and also can be found on the Company’s web site (www.arris.com).

GAAP net income in the fourth quarter 2015 was $0.20 per diluted share, as compared to fourth quarter 2014 GAAP net income of $1.29 per diluted share and third quarter 2015 GAAP net income of $0.18 per diluted share. The fourth quarter 2015 GAAP net income includes a net $0.14 benefit associated with the full year impact of research & development tax credits.

Full year, GAAP net income was $0.62 per diluted share in 2015 as compared to GAAP net income of $2.21 per diluted share in 2014.

Cash & Cash Equivalents - The Company ended the fourth quarter 2015 with $879.1 million of cash resources, which includes cash, cash equivalents and short-term investments, as compared to $781.1 million, in the aggregate, at the end of the third quarter 2015. The Company generated $127.4 million of cash from operating activities during the fourth quarter 2015, as compared to $130.0 million generated during the fourth quarter 2014. During the full year of 2015, the Company generated $351.9 million of cash from operating activities, which compares to $459.3 million generated during 2014.

Order backlog at the end of the fourth quarter 2015 was $715.8 million as compared to $631.0 million and $559.0 million at the end of the fourth quarter 2014 and the third quarter 2015, respectively. The Company’s book-to-bill ratio in the fourth quarter 2015 was 1.14 as compared to the fourth quarter 2014 of 1.03 and the third quarter 2015 of 0.92.

ARRIS management will conduct a conference call at 5:00 pm Eastern, today, Wednesday, February 17, 2016, to discuss these results in detail. You may participate in this conference call by dialing 888-680-0879 or +1-617-213-4856 for international calls prior to the start of the call and providing the ARRIS International plc name, conference pass code 498 383 20# and Bob Puccini as the moderator. Please note that ARRIS will not accept any calls related to this earnings release until after the conclusion of the conference call. A replay of the conference call can be accessed approximately two hours after the call through February 24, 2016 by dialing 888-286-8010 or +1-617-801-6888 for international calls and using the pass code 65231367. A replay also will be made available for a period of 12 months following the conference call on ARRIS’s web site at www.arris.com.

About ARRIS

ARRIS International plc (NASDAQ: ARRS) is a world leader in entertainment and communications technology. Our innovations combine hardware, software, and services across the cloud, network, and home to power TV and Internet for millions of people around the globe. The people of ARRIS collaborate with the world’s top service providers, content providers, and retailers to advance the state of our industry and pioneer tomorrow’s connected world. Together, we are inventing the future. For more information, visit www.arris.com.

###

Contact:

Bob Puccini

Investor Relations

+1.720.895.7787

Forward-Looking Statements

Statements made in this press release, including those related to:

are forward-looking statements. These statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Among other things,

In addition to the factors set forth elsewhere in this release, other factors that could cause results to differ from current expectations include: the impact of rapidly changing technologies; rights to intellectual property; market trends and the adoption of industry standards. These factors are not intended to be an all-encompassing list of risks and uncertainties that may affect the Company’s business. Additional information regarding these and other factors can be found in ARRIS Group, Inc.’s reports (as predecessor registrant to ARRIS International plc) filed with the Securities and Exchange Commission, including its Form 10-Q for the quarter ended September 30, 2015. In providing forward-looking statements, the Company expressly disclaims any obligation to update publicly or otherwise these statements, whether as a result of new information, future events or otherwise.

ARRIS GROUP, INC.

PRELIMINARY CONSOLIDATED BALANCE SHEETS

(in thousands)

(unaudited)

ARRIS GROUP, INC.

PRELIMINARY CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

(unaudited)

ARRIS GROUP, INC.

PRELIMINARY CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

ARRIS GROUP, INC.

PRELIMINARY SUPPLEMENTAL SALES & NET INCOME RECONCILIATION

(in thousands, except per share data) (unaudited)

Notes to GAAP to Adjusted Non-GAAP Financial Measures

The Company reports its financial results in accordance with accounting principles generally accepted in the United States (“GAAP” or referred to herein as “reported”). However, management believes that certain non-GAAP financial measures provide management and other users with additional meaningful financial information that should be considered when assessing our ongoing performance. Our management regularly uses our supplemental non-GAAP financial measures internally to understand, manage and evaluate our business and make operating decisions. These non-GAAP measures are among the factors management uses in planning for and forecasting future periods. Non-GAAP financial measures should be viewed in addition to, and not as an alternative to, the Company’s reported results prepared in accordance with GAAP. Our non-GAAP financial measures reflect adjustments based on the following items, as well as the related income tax effects:

Acquisition Accounting Impacts Related to Deferred Revenue: In connection with our acquisition of Motorola Home, business combination rules require us to account for the fair values of arrangements for which acceptance has not been obtained, and post contract support in our purchase accounting. The non-GAAP adjustment to our sales and cost of sales is intended to include the full amounts of such revenues. We believe the adjustment to these revenues is useful as a measure of the ongoing performance of our business. We have historically experienced high renewal rates related to our support agreements and our objective is to increase the renewal rates on acquired post contract support agreements; however, we cannot be certain that our customers will renew our contracts.

Stock-Based Compensation Expense: We have excluded the effect of stock-based compensation expenses in calculating our non-GAAP operating expenses and net income measures. Although stock-based compensation is a key incentive offered to our employees, we continue to evaluate our business performance excluding stock-based compensation expenses. We record non-cash compensation expense related to grants of options and restricted stock. Depending upon the size, timing and the terms of the grants, the non-cash compensation expense may vary significantly but will recur in future periods.

Integration, Acquisition, Restructuring and Other Costs: We have excluded the effect of acquisition, integration, and other expenses and the effect of restructuring expenses in calculating our non-GAAP operating expenses and net income measures. We incurred expenses in connection with the Active Video Joint Venture, the Motorola Home acquisition, the anticipated Pace acquisition and, which we generally would not otherwise incur in the periods presented as part of our continuing operations. Acquisition and integration expenses consist of transaction costs, costs for transitional employees, other acquired employee related costs, and integration related outside services. Restructuring and other costs consist of employee severance, abandoned facilities, product line disposition and other exit costs. We believe it is useful to understand the effects of these items on our total operating expenses.

Amortization of Intangible Assets: We have excluded the effect of amortization of intangible assets in calculating our non-GAAP operating expenses and net income measures. Amortization of intangible assets is non-cash, and is inconsistent in amount and frequency and is significantly affected by the timing and size of our acquisitions. Investors should note that the use of intangible assets contributed to our revenues earned during the periods presented and will contribute to our future period revenues as well. Amortization of intangible assets will recur in future periods.

Noncontrolling Interest share of Non-GAAP Adjustments: In the second quarter of 2015, ARRIS and Charter formed a joint venture that acquired Active Video Networks, Inc. ARRIS and Charter own 65% and 35%, respectively, of the joint venture. The joint venture is accounted for by ARRIS under the consolidation method. As a result, the consolidated statement of operations include the revenues, expenses, and gains and losses of the noncontrolling interest. The amount of net income (loss) related to the noncontrolling interest are reported and presented separately in the consolidated statement of operations. We have excluded the noncontrolling share of any non GAAP adjusted measures recorded by the joint venture, as we believe it is useful to understand the effect of excluding this item when evaluating our ongoing performance.

Impairment of Investment: We have excluded the effect of other-than-temporary impairments of a cost method investment in calculating our non-GAAP financial measures. We believe it is useful to understand the effect of this non-cash item in our other expense (income).

Debt Amendment Fees: In 2015, the Company amended its credit agreement. This debt modification allowed us to improve the terms and conditions of the credit agreement, extend the maturities of certain loan facilities, increase the amount of the revolving credit facility, and add a new term A-1 loan facility. It is our intent that the new term A-1 loan facility be funded upon the closing of the Pace acquisition. If the Pace acquisition does not close, the entire facility is available to ARRIS so long as the first $400 million drawn is used to reduce other debt; the remaining $400 million can be used for general corporate purposes. Certain fees related to the debt modification have already been paid, and other fees related to the new term A-1 loan facility will be paid upon funding. We believe it is useful to understand the effect of this on our other expense (income).

Credit Facility - Ticking Fees: In connection with our acquisition of Pace plc, the cash portion of the consideration was funded through debt financing commitments. A ticking fee is a fee paid to our banks to compensate for the time lag between the commitment allocation on a loan and the actual funding. We have excluded the effect of the ticking fee in calculating our non-GAAP financial measures. We believe it is useful to understand the effect of this non-cash item in our other expense (income).

Liability / Adjustment Related to Foreign Tax Credit Benefits: In connection with our acquisition of Motorola Home, we have obtained certain foreign tax credit benefits for which we have recorded a liability to Google resulting from certain provisions in the acquisition agreement. The expense and subsequent adjustments related to this liability has been recorded as part of other expense (income). We have excluded the effect of the expense in the calculation of our non-GAAP financial measures. We believe it is useful to understand the effects of this item on our total other expense (income).

Asset Held for Sale Impairment: In the second quarter of 2014, we entered into a contract to facilitate the sale of a building at less than its carrying value. The asset has been reclassified as held for sale and was measured at the lower of its carrying amount or fair value less cost to sell. We have recorded an initial impairment charge to reduce the assets carrying amount to its fair value less costs to sell in the period the held for sale criteria were met. We have excluded the effect of the asset held for sale impairment in calculating our non-GAAP financial measures. We believe it is useful to understand the effect of this non-cash item in our other expense (income).

Foreign Exchange Contract (Gains) Losses Related to Cash Consideration of Pace Acquisition: In the second quarter of 2015, the Company announced its intent to acquire Pace plc in exchange for stock and cash. We subsequently entered into foreign exchange forward contracts in order to hedge the foreign currency risk associated with the cash consideration of the Pace acquisition. These foreign exchange forward contracts were not designated as hedges, and accordingly, all changes in the fair value of these instruments are recognized as a loss (gain) on foreign currency in the Consolidated Statements of Operations. We believe it is useful to understand the effect of this on our other expense (income).

Loss on Sale of Building: In the first quarter of 2015, the Company sold land and a building that qualified for sale-leaseback accounting and was classified as an operating lease. A loss has been recorded on the sale. We have excluded the effect of the loss on sale of property in calculating our non-GAAP financial measures. We believe it is useful to understand the effect of excluding this item when evaluating our ongoing performance.

Income Tax Expense (Benefit): We have excluded the tax effect of the non-GAAP items mentioned above. Additionally, we have excluded the effects of certain tax adjustments related to tax and legal restructuring, state valuation allowances, research and development tax credits and provision to return differences.