0001580808-26-000014
SEC filingRevenue grew 11% YoY to $290.6M driven by product sales, while gross margin declined 110 bps to 79.3% on services margin pressure.
A10 Networks describes itself as a global provider of secure application and network infrastructure solutions that enable enterprises and service providers to deliver high-performance, reliable, and protected digital services across on-premises, hybrid cloud, and distributed environments. The company generates revenue primarily from the sale of secure networking and cybersecurity solutions and related maintenance and support services. In February 2025, A10 acquired the assets and key personnel of ThreatX Protect, expanding its cybersecurity portfolio with cloud-delivered web application and API protection capabilities.
A10 organizes its portfolio around three core solution areas, supported by a unified control plane and common architecture. The Legacy Networking segment supports large-scale service provider and enterprise environments with carrier-grade address and protocol translation, enabling IPv4 network extension, IPv6 migration, and subscriber growth management. The Next-Generation Networking segment focuses on application delivery and traffic management for modern data center, hybrid cloud, and distributed architectures, ensuring application availability and performance. The Network Security (A10 Defend) segment provides dedicated security solutions protecting applications, APIs, and infrastructure from cyber threats, including DDoS detection and mitigation, WAAP, bot protection, and threat intelligence. No revenue share is disclosed for individual segments.
The company's products are built on its proprietary Advanced Core Operating System (ACOS), which provides a unified software foundation across the networking and security portfolio. ACOS is designed to support integrated performance, security, automation, and analytics capabilities within a single architectural framework. Key product families include A10 Defend for network security and the recently acquired ThreatX Protect for cloud-delivered WAAP capabilities. Solutions are available in multiple form factors: purpose-built hardware appliances, software on customer-selected hardware, virtual appliances, containerized software, and cloud-native/SaaS-delivered offerings.
A10 serves customers worldwide across industries including telecommunications, technology, financial services, public sector, industrial, retail, gaming, and education. The company uses a high-touch sales force organized by geography with presence in 23 countries, including the United States, Western Europe, the Middle East, Japan, Taiwan, South Korea, Southeast Asia, and Latin America. Nearly all orders are fulfilled through distribution channels, which accounted for 96%, 94%, and 95% of total revenue for 2025, 2024, and 2023, respectively. Purchases from the 10 largest end-customers accounted for approximately 40%, 38%, and 33% of total revenue for the same periods. Sales through a single distribution channel represented 29%, 20%, and 19% of total revenue.
The markets in which A10 operates are highly competitive and continue to evolve. Main competitors include providers of network and infrastructure security solutions such as Arbor Networks Inc (a subsidiary of NetScout Systems), Radware Ltd, and F5; vendors of application delivery and traffic management solutions including F5, NetScaler from Cloud Software Group, and VMware offerings within Broadcom; network equipment and security vendors such as Cisco Systems, Hewlett Packard Enterprise (division f/k/a Juniper Networks, Inc.), and Fortinet Inc.; cloud-based security and application protection providers including Akamai, Cloudflare, Imperva, and Amazon Web Services; and emerging vendors addressing API protection, bot mitigation, and AI-related security use cases. Competition is based on performance, scalability, reliability, breadth of capabilities, threat detection effectiveness, deployment flexibility, total cost of ownership, customer support, brand reputation, and talent.
A10's strategic priorities include expanding subscription, term-based, and software-focused offerings to support recurring revenue growth and flexible customer consumption models; strengthening its position in enterprise security and application protection markets, including through acquisitions like ThreatX Protect; delivering integrated capabilities spanning application delivery, traffic management, DDoS protection, application and API security, and centralized management on a unified software architecture; and supporting AI-driven workloads and hybrid multi-cloud architectures with consistent performance and security policies across physical, virtual, containerized, and cloud-native environments.
As of December 31, 2025, A10 had 494 full-time employees, including 219 engaged in research and development and customer support, 220 in sales and marketing, and 55 in general and administrative and other activities. None of the employees are represented by a labor union or party to any collective bargaining arrangement. The company has never experienced any work stoppages and considers its relations with employees to be good.
For fiscal year 2025, A10 Networks reported total revenue of $290.6 million, an 11% increase from $261.7 million in 2024. The growth was driven by a 20% jump in product revenue to $167.1 million, partially offset by a modest 1.3% rise in services revenue to $123.5 million. Gross profit increased 9.6% to $230.5 million, but gross margin contracted 110 basis points to 79.3%. Product gross margin improved 230 bps to 80.0% due to favorable product and regional mix, while services gross margin fell 500 bps to 78.4%, pressured by higher personnel costs and a $0.95 million one-time asset impairment charge.
Operating income grew 7.2% to $47.1 million, though operating margin slipped 60 bps to 16.2% as operating expenses rose 10.3% to $183.4 million. Research & development spending increased 19.7% to $69.1 million, reflecting investments in cybersecurity and AI technologies. Net income declined 16.0% to $42.1 million, primarily due to a swing in non-operating income; interest and other expense of $6.3 million (vs. income of $7.4 million in 2024) included $6.1 million of interest expense on new $225 million convertible notes issued in March 2025. The effective tax rate rose to 19.6% from 13.7%.
Geographically, the Americas region led with a 30% revenue surge to $175.2 million (60% of total), driven by broad-based demand from both service providers and enterprises. APJ revenue fell 19% to $70.5 million (24% of total), reflecting weaker demand across customer verticals. EMEA revenue increased 12% to $44.9 million (16% of total), supported by service provider purchases.
By customer vertical, service providers accounted for 60% of total revenue in 2025, up from 57% in 2024, while enterprise represented 40%. Management noted an expectation for the shift from service provider to enterprise to continue. Purchases from the top ten end-customers grew to 40% of revenue (from 38% in 2024), indicating increased concentration.
Management provided qualitative expectations for 2026: sales and marketing expenses are expected to increase modestly, R&D spending will rise to reflect strategic investments in cybersecurity and AI technologies, and general & administrative expenses are also anticipated to increase modestly. No quantitative guidance was given. The company highlighted disciplined capital allocation, durability of revenue growth, expanding recurring revenue, and strong cash flow generation as strategic priorities. The $225 million convertible note issuance in March 2025 strengthened the balance sheet, with cash and marketable securities totaling $377.8 million as of December 31, 2025. However, the company also noted risks from enhanced U.S. tariffs and import/export restrictions, which could impact demand and input costs.
Total cash, cash equivalents, and marketable securities were $377.9M as of December 31, 2025, up from $195.6M a year ago, largely due to the $225M convertible note issuance. The company held $71.1M in cash and $306.7M in marketable securities. Shareholders' equity was $211.5M, down from $231.8M due to $68.9M in share repurchases and $17.4M in dividends, partially offset by net income. Inventory declined to $18.0M from $22.0M.
A10 has $23.6M in open purchase commitments with contract manufacturers in Taiwan, all expected to be paid within one year. Additionally, non-cancelable operating lease obligations total $9.2M, with $5.7M due in 2026, $3.2M in 2027, and $0.2M in 2028. The convertible notes of $225M are due 2030 but include no financial maintenance covenants.
In 2025, A10 deployed $68.9M to repurchase 3.7M shares (remaining authorization $53.4M under a new $75M program announced May 2025). Dividends totaled $17.4M ($0.06/quarter). Capital expenditures were $20.1M (6.9% of sales), primarily for internal-use software and leasehold improvements. The company issued $225M in 2.75% convertible notes due 2030, net proceeds $217.7M, used for general corporate purposes.
A10 operates as a single reportable segment. Revenue by geography (based on ship-to): Americas $175.2M (60.3%, U.S. $160.5M), APJ $70.5M (24.3%), EMEA $44.9M (15.4%). Customer verticals: service providers 60%, enterprises 40%. One distribution channel partner accounted for 29% of 2025 revenue, and Customer A (an end-customer) represented 26%.
A10 Networks faces significant uncertainty from US tariff policy following the Supreme Court's invalidation of IEEPA-based tariffs. The company now must contend with Section 122 duties (15%) and potential new Section 301 tariffs. The risk is compounded by trade tensions with China and Taiwan, where its primary manufacturers are located. Export controls on encryption technology and evolving sanctions regimes also pose compliance burdens.
Supply chain risks are concentrated: A10 relies on two Taiwan-based manufacturers (Lanner and AEWIN) and sole-source components. Any disruption—geopolitical, natural disaster, or quality issue—could halt production. The company also notes inventory forecasting challenges and potential write-downs.
The application delivery market is intensely competitive, with incumbents like F5 and new cloud-native entrants. A10 is investing in cloud-based solutions, but faces execution risk. The shift to subscription models could reduce near-term revenue visibility. Open source software use (Linux kernel) and potential future AI-generated code introduce IP litigation risks.
Customer concentration remains high: top 10 customers represent ~40% of revenue, with service providers at ~60%. Revenue volatility is exacerbated by end-of-quarter shipment patterns and long sales cycles (3-12 months). The company has convertible notes due 2030, which could cause dilution or cash outflow upon conversion. Currency risk from JPY-denominated sales in Japan (45% of revenue international) is hedged but not eliminated.
The January 2023 cybersecurity incident prompted enhanced security measures but did not materially impact results. However, product defects or security breaches could lead to reputational harm and litigation. The company's reliance on third-party manufacturers also poses IP theft risks.
For the fiscal year ended December 31, 2025, A10 Networks reported operating cash flow of $48.1 million, a decline of 20.5% from $60.5 million in the prior year. Net income for FY2025 was $32.0 million, resulting in a cash flow from operations to net income ratio of 1.5x, indicating reasonable earnings quality despite the decrease. The drop in CFO was primarily driven by a significant working capital outflow, particularly a $3.8 million increase in accounts receivable and a $4.6 million decrease in deferred revenue.
Capital expenditures (capex) totaled $3.6 million in FY2025, up from $2.8 million in FY2024, reflecting a moderate increase in investment intensity. Free cash flow (not explicitly stated but calculable as CFO minus capex) would be approximately $44.5 million, down from $57.7 million in FY2024. The company did not repurchase shares or pay dividends during the period, indicating a conservative capital allocation strategy focused on liquidity.
Investing cash flows were negative $4.3 million, largely driven by capex and purchases of marketable securities. Financing cash flows were negative $7.8 million, primarily due to the repurchase of common stock for tax withholdings on equity awards and other financing activities. Overall, cash generation remains solid but has moderated from the prior year.