BAND

EX-99.1

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EX-99.1

Document

Bandwidth Announces Third Quarter 2026 Financial Results

Record revenue of $234 million, up 22% year-over-year, and Adjusted EBITDA of $35 million, up 43% year-over-year,

with Adjusted EBITDA margin of 22%

2027 outlook of double-digit Cloud Communications revenue from voice usage demand growth

October 29, 2026

Conference Call

Bandwidth will host a conference call to discuss financial results for the third quarter ended September 30, 2026 on October 29, 2026. Details can be found below and on the investor section of its website at https://investors.bandwidth.com where a replay will also be available shortly following the call.

Raleigh, N.C. - Bandwidth Inc. (NASDAQ: BAND), a leading global enterprise cloud communications company, today announced financial results for the third quarter ended September 30, 2026.

“We delivered another strong quarter, with record results in all key financial metrics, highlighting the value that we are bringing to enterprises that are increasingly entrusting us to power SI-driven communication workflows,” said David Morken, Bandwidth’s Co-Founder, Chief Executive Officer, and Chairman. “As SI agents begin to act on behalf of businesses and consumers, they will need to reach people by voice and text, with the reliability and trust those interactions demand. Bandwidth enables that connection, and we will continue to scale as SI generates more conversations between people and agents.”

Third Quarter 2026 Financial Highlights

The following table summarizes the condensed consolidated financial highlights for the three and nine months ended September 30, 2026 and 2025 ($ in millions, except per share amounts).

Conference Call Details

October 29, 2026

8:00 am ET

Domestic dial-in:

844-481-2707

International dial-in:

646-307-1963

Replay information

An audio replay of this conference call will be available through November 5, 2026 by dialing 855-669-9658 or

412-317-0088 for international callers, and entering passcode 4828018.

Investor Contact

Nils Erdmann

Bandwidth

919-410-7499

ir@bandwidth.com Three months ended September 30,Nine months ended September 30,

2026202520262025

Revenue$234 $192 $663 $546

Gross Margin36 %38 %36 %40 %

Non-GAAP Gross Margin (1)

61 %58 %60 %58 %

Net income (loss)$5 $(1)$12 $(10)

Non-GAAP net income (1)

$20 $11 $46 $34

Net income (loss) per share, basic$0.16 $(0.04)$0.37 $(0.33)

Net income (loss) per share, diluted$0.13 $(0.04)$0.00 $(0.33)

Non-GAAP net income per Non-GAAP share (1)

$0.50 $0.36 $1.22 $1.10

Adjusted EBITDA (1) $35 $24 $89 $68

Net cash provided by operating activities$38 $22 $75 $51

Free cash flow (1) $33 $13 $56 $25

(1) Additional information regarding the Non-GAAP financial measures discussed in this release, including an explanation of these measures and how each is calculated, is included below under the heading “Non-GAAP Financial Measures.” A reconciliation of GAAP to Non-GAAP financial measures has also been provided in the financial tables included below.

“Our third quarter results demonstrate our continued focus and execution, with record revenue, Adjusted EBITDA, and free cash flow,” said Daryl Raiford, CFO of Bandwidth. “Our growth this quarter was driven by customers expanding their usage of our platform, and our sales team added four new $1 million-plus customer wins and expansions that will layer into our results over the next twelve months. The strength of our business model lets us lean into that momentum while expanding margins and generating strong cash flow.”

1

Third Quarter Customer Highlights

•A rapidly expanding all-digital banking platform selected Bandwidth to modernize its customer contact center and integrate an SI agent, displacing a major CPaaS competitor. The bank chose Bandwidth for our low-latency owned network, 5x-redundant toll-free solution with Maestro advanced routing and observability, and native Genesys integration, creating high-value enterprise voice traffic that grows as it scales SI-powered customer interactions.

•A fast-growing consumer privacy company expanded its relationship with Bandwidth, now relying on us for millions of phone numbers, and launched an SI-powered call screening service built on our software and voice infrastructure, with additional services planned on our WebRTC solution.

•A major enterprise network and communications provider serving businesses and state and local governments across the U.S. expanded a longstanding relationship spanning toll-free, 911, and other voice services by adopting our platform voice solution, creating a new source of recurring platform fees and incremental usage-based revenue.

•A specialized communications provider serving thousands of businesses and government agencies through its reseller and managed service provider network selected Bandwidth to expand its calling services internationally, relying on our network reaching 70 countries and our global routing capabiliti

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