UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of August 2025 (Report No. 3)

Commission file number: 001-41260

Maris-Tech Ltd.

(Translation of registrant’s name into English)

2 Yitzhak Modai Street

Rehovot, Israel 7608804

(Address of principal executive offices)

Indicate by check mark whether the registrant filesor will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒         Form40-F ☐

CONTENTS

On August 20, 2025, Maris-TechLtd. (the “Registrant”) issued a press release (the “Press Release”) titled “Maris-Tech Enters Into U.S.Product Supply Agreement with One Stop Systems to Expand U.S. Defense Sector Presence,” a copy of which is furnished as Exhibit99.1 with this Report of Foreign Private Issuer on Form 6-K (this “Report”).

Thefirst three and sixth paragraphs, and the section titled “Forward-Looking Statements Disclaimer” in the Press Releaseare incorporated by reference into the Company’s Registration Statements on Form S-8 (Registration No. 333-262910 and 333-274826)and Registration Statement on Form F-3 (Registration No. 333-270330),filed with the Securities and Exchange Commission, to be a part thereof from the date on which this Report is submitted, to theextent not superseded by documents or reports subsequently filed or furnished.

SIGNATURES

Pursuant to the requirementsof the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned, thereuntoduly authorized.

2

Exhibit 99.1

Maris-Tech Enters into U.S. Product Supply Agreementwith One Stop Systems to Expand U.S. Defense Sector Presence

Collaboration with Leading Provider of Rugged AIand Sensor Processing Platforms Strengthens Maris-Tech’s U.S. Market Reach

Rehovot, Israel, Aug. 20, 2025 (GLOBE NEWSWIRE) -- Maris-TechLtd. (Nasdaq: MTEK, MTEKW) (“Maris-Tech” or the “Company”), a global leader in video and artificial intelligence(“AI”)-based edge computing technology, today announced that it has entered into a Product Supply Agreement with U.S.-basedOne Stop Systems, Inc. (Nasdaq: OSS) (“OSS”), a leader in rugged enterprise class compute for AI, machine learning, autonomy,and sensor processing at the edge.

Under the agreement, OSS will promote, support and fulfill Maris-Tech’sportfolio of video and AI-based edge computing solutions to defense sector customers in the United States. OSS manufactures and sellsruggedized compute, storage, AI accelerators, and expansion systems designed for mission-critical, high-performance applications in harshenvironments.

The collaboration is aligned with Maris-Tech’s growth strategyto expand its footprint in the U.S. defense market, providing OSS customers with access to cutting-edge, field-proven solutions for intelligencegathering, situational awareness, and threat detection.

“This agreement marks an important milestone in our U.S. expansionstrategy,” said Israel Bar, Chief Executive Officer of Maris-Tech. “OSS is a recognized leader in rugged AI and sensor processingsystems, and we are proud to collaborate with them to deliver our technology to defense customers across the U.S. We believe this collaborationis both a vote of confidence in our products and an opportunity for OSS customers to benefit from our advanced, mission-ready solutions.”

Michael Knowles, Chief Executive Officer of OSS, said: “Maris-Tech’svideo and AI-based edge computing solutions are an ideal complement to our ruggedized platforms. By combining our expertise in AI-enabledsolutions with Maris-Tech’s innovative video intelligence systems, we can offer U.S. defense customers an even more powerful suiteof capabilities to address their evolving mission requirements.”

Maris-Tech continues its strategy of collaboration with leading regionalpartnerships to extend its reach in key global markets with this agreement. The Company has recently announced similar collaborationsin Asia-Pacific, Europe and India, further strengthening its international sales network.

About Maris-Tech Ltd.

Maris-Tech is a global leader in video and AI-based edge computingtechnology, pioneering intelligent video transmission solutions that conquer complex encoding-decoding challenges. Our miniature, lightweight,and low-power products deliver high-performance capabilities, including raw data processing, seamless transfer, advanced image processing,and AI-driven analytics. Founded by Israeli technology sector veterans, Maris-Tech serves leading manufacturers worldwide in defense,aerospace, intelligence gathering, homeland security (HLS), and communication industries. We’re pushing the boundaries of videotransmission and edge computing, driving innovation in mission-critical applications across commercial and defense sectors.

For more information, visit https://www.maris-tech.com/

About One Stop Systems

One Stop Systems, Inc. (Nasdaq: OSS) is a leader in AI-enabled solutionsfor the demanding ‘edge’. OSS designs and manufactures Enterprise Class compute and storage products that enable rugged AI,sensor fusion and autonomous capabilities without compromise. These hardware and software platforms bring the latest data center performanceto harsh and challenging applications, whether they are on land, sea or in the air. OSS products include ruggedized servers, compute accelerators,flash storage arrays, and storage acceleration software. These specialized compact products are used across multiple industries and applications,including autonomous trucking and farming, as well as aircraft, drones, ships and vehicles within the defense industry. OSS solutionsaddress the entire AI workflow, from high-speed data acquisition to deep learning, training and large-scale inference, and have deliveredmany industry firsts for industrial OEM and government customers. As the fastest growing segment of the multi-billion-dollar edge computingmarket, AI-enabled solutions require-and OSS delivers-the highest level of performance in the most challenging environments without compromise.OSS products are available directly or through global distributors.

Forward-Looking Statement Disclaimer

This press release contains “forward-looking statements”within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, asamended, that are intended to be covered by the “safe harbor” created by those sections. Forward-looking statements, whichare based on certain assumptions and describe our future plans, strategies and expectations, can generally be identified by the use offorward-looking terms such as “believe,” “expect,” “may”, “should,” “could,”“seek,” “intend,” “plan,” “goal,” “estimate,” “anticipate” orother comparable terms. For example, the Company is using forward-looking statements when it is discussing the parties’ responsibilitiesunder the agreement, that collaboration is aligned with the Company’s growth strategy to expand its footprint in the U.S. defensemarket, its strategy of collaboration with leading regional partnerships and the benefits and advantages of the Company’s productsand solutions. The Company’s actual results and financial condition may differ materially from those indicated in the forward-lookingstatements. Therefore, you should not rely on any of these forward-looking statements. Important factors that could cause our actual resultsand financial condition to differ materially from those indicated in the forward-looking statements include, among others, the following:its ability to successfully market its products and services, including in the United States; the acceptance of its products and servicesby customers; its continued ability to pay operating costs and ability to meet demand for its products and services; the amount and natureof competition from other security and telecom products and services; the effects of changes in the cybersecurity and telecom markets;its ability to successfully develop new products and services; its success establishing and maintaining collaborative, strategic allianceagreements, licensing and supplier arrangements; its ability to comply with applicable regulations; and the other risks and uncertaintiesdescribed in the Annual Report on Form 20-F for the year ended December 31, 2024, filed with the SEC on March 28, 2025, and its otherfilings with the Securities and Exchange Commission. The Company undertakes no obligation to publicly update any forward-looking statement,whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise.

Investor Relations:

Nir Bussy, CFO

Tel: +972-72-2424022

Nir@maris-tech.com