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Physna LLC, founded in 2015 and based in Cincinnati, Ohio, specializes in developing geometric search engine software tailored for computer-aided design and 3D printing, among other manufacturing processes. The company's innovative platform utilizes proprietary algorithms and advanced geometric deep learning technology to deconstruct 3D files into a structured format, allowing users to search, compare, and analyze 3D models for quality control and automated inspection. Physna's offerings cater to various industries, including aerospace, automotive, defense, consumer goods, and energy, empowering clients to enhance efficiency and productivity in their manufacturing operations. Additionally, Physna owns Thangs.com, a rapidly growing 3D community and search engine, which further contributes to its mission of democratizing access to 3D design and analysis tools, thus fostering innovation in areas such as product design, healthcare, augmented reality, and gaming.

Onfasty provides a free domain name search, domain generation, and location, and reverse and DNS lookup.

Tenor is the largest and fastest-growing mobile GIF search engine, facilitating over 12 billion monthly searches and attracting 300 million users. The platform enhances digital communication by allowing individuals to express emotions and convey personality through carefully selected GIFs. By leveraging its extensive search data, Tenor has developed the Tenor Emotional Graph, which underpins its popular GIF Keyboard app and supports GIF sharing across numerous messaging platforms, including iMessage, Facebook Messenger, WhatsApp, Twitter, and Google Gboard. In 2017, Tenor pioneered a branded GIF program, engaging companies like Dunkin Donuts, Nissan, AT&T, and Wendy’s, enabling them to connect authentically with mobile audiences. Overall, Tenor's focus on providing the right GIF at the right moment positions it as a leader in the digital content sharing space.

Giphy, Inc. is an online platform that specializes in the search, sharing, and discovery of animated graphics interchange formats (GIFs). Founded in 2013 and headquartered in New York City, the company offers a comprehensive database of GIFs across various categories including emotions, food, animals, and pop culture. It enables users to easily browse and share these animated graphics through social media channels. Giphy also supports creative input by allowing users to upload their own GIFs and collaborates with brands to produce original content. The platform aims to evolve beyond its search engine roots into a vibrant community for GIF artists and enthusiasts, focusing on fostering creativity and engagement within the digital visual communication space. As of mid-2020, Giphy operates as a subsidiary of Instagram, which enhances its integration within social media ecosystems.

Hey Inc. is a San Francisco-based company founded in 2012 that develops Heyday, an automatic journaling application designed for mobile devices. The application allows users to effortlessly document their experiences, including the places they visit and the activities they engage in. Heyday organizes photos into attractive collages, which can be customized with various layouts and filters, enabling users to easily share their memories. The platform aims to help individuals remember and reflect on their life stories by providing a private and beautiful way to track moments—both significant and mundane. With its focus on enhancing personal memory through technology, Heyday seeks to transform how people capture and rediscover their meaningful experiences.

Weotta is a technology company that specializes in transforming unstructured data related to places and events into meaningful and contextually relevant information. By employing advanced machine learning and search technology, Weotta enables users to discover local eateries, bars, movies, and events through specific filters such as location and time. The company gained recognition as a finalist at TechCrunch Disrupt New York 2011, where they demonstrated their innovative WeottaMakePlans itinerary generator. Recently, Weotta launched a mobile application called WeottaGo, designed to help users quickly and effortlessly explore activities and experiences in their vicinity. With a focus on enhancing user experience, Weotta aims to connect individuals with the best offerings in their surroundings.

Channel Intelligence (CI) is a company that specializes in enhancing product sales in the ecommerce sector through data-driven services. The firm offers a range of solutions, including CI Boost™, which supports brands and retailers with tools such as where-to-buy services, product search engines, shopping engines, and Facebook platform integration. CI Where-to-Buy is recognized as a global leader, operating in 31 countries and connecting major brands to over 850 retailers, effectively delivering highly qualified customers. As a featured partner in Google Shopping, CI has developed patented optimization technology that assists merchants in maximizing sales and improving Return On Ad Spend (ROAS) through Product Listing Ads (PLAs), an increasingly vital channel for online merchants. The company serves a diverse clientele, including manufacturers, retailers, and publishers, contributing to its prominent position in the online shopping industry.

KikScore is a reputational seal for online merchants and service providers. This service evaluates the websites and reputations of these businesses based on various information that shoppers use when deciding the trustworthiness of online sources. KikScore takes this information and compiles it into a trust score ranging between 0 (high likelihood of a bad shopping experience with this small business) and 1,000 (high likelihood of a good shopping experience with this small business). Businesses can then display the KikScore confidence badge on their websites, allowing potential customers to access a report card which provides important reputational information about them. It is especially helpful for small businesses that are found through local search via search engines. This information includes: Customer feedback; Shopping security; Policies; Certifications; Management; and more. KikScore's mission is about empowering small businesses of every kind to use information and data about themselves that is scattered around the internet so they can sell more and close more leads. KikScore offers a dynamic trust score and merchant report card that small businesses put on their website to clearly demonstrate to shoppers and potential leads that they are trustworthy and reliable. This helps small businesses cut shopping cart abandonment rates and increase their sales and service providers like accountants, lawyers, contractors and plumbers close more leads.

Like.com is a visual search engine that enables users to find and compare consumer products online using advanced image recognition technology. Unlike traditional search engines, Like.com indexes images based on their visual characteristics rather than relying solely on metadata and tags. Users can discover similar products, such as shoes, bags, watches, and clothing, by either selecting items displayed on the platform or by entering descriptive phrases. The system translates these descriptions into mathematical representations known as visual signatures, which consist of thousands of variables. This innovative approach allows for a more intuitive shopping experience, as users can find products without the need for specific search terms. Future developments for Like.com include the ability for users to upload images to initiate searches, further enhancing the platform's functionality and expanding the range of products that can be found online.

Plink Search is an online search engine founded in 2009 by Mark Cummins and based in London. The platform specializes in providing technology tips and guides related to Google products, enhancing users' understanding and utilization of these tools. In addition to its focus on Google-related content, Plink has developed visual search software for mobile phones, enabling users to submit photos to the search engine to retrieve relevant data. The company was acquired by Google in 2010, expanding its capabilities and integration within the broader tech ecosystem.

ReMail is an email app that downloads all your email to their iPhone and offers a comprehensive email search. It was founded in 2008 and acquired by Google. Headquartered in San Francisco, California, USA.

Aardvark, originally known as Mechanical Zoo, is a social search engine founded by former Google employees. Launched in 2008, it enables users to ask questions and receive answers from their extended social networks, utilizing instant messaging and email for inquiries. The platform distributes questions to contacts based on their expertise and interests, ensuring users receive quick and relevant responses. Aardvark focuses on facilitating meaningful interactions, particularly for queries related to personal tastes in music, books, movies, and restaurants. The service leverages the knowledge within a user's network to provide high-quality answers efficiently.

DoubleClick specializes in digital marketing technology and services, assisting companies with ad serving, media, video, search, and affiliate marketing to maximize their online presence.

Orion is a search engine algorithm that provides its users more context on their search queries. Orion helps the user determine if the site is worth visiting. Orion is being implemented is through search refinements. Refinements are a collection of links that contain related query formulations.

Akwan Information Technologies was a Brazilian search engine company that specialized in developing information search systems for businesses. The company offered an online platform designed to provide access to a wide range of information on various topics. In July 2005, Akwan was acquired by Google, subsequently becoming a part of Google Brazil.

Baidu is the largest internet search engine in China, commanding over 50% of the market share as of 2024. The company provides various online search services, including community and vertical searches, as well as instant messaging capabilities. Its suite of products encompasses Baidu Webpage, Baidu Video, Baidu Map, and BaiduPedia, among others. In 2023, Baidu generated 72% of its core revenue from online marketing services related to its search engine. Beyond search, the company is also focused on growth initiatives in artificial intelligence, cloud computing, video streaming, voice recognition technology, and autonomous driving. Baidu's diverse offerings position it as a key player in China's technology landscape.

Kaltix Corporation develops search tools for people to find information on the Web.

Outride Inc., a Redwood City, Calif.-based developer of online information retrieval technologies.

Deja was a developer of a website that specialized in searching Usenet articles across a comprehensive archive of text newsgroups. The platform provided a user-friendly interface that allowed users to conduct searches across all archived newsgroups, delivering immediate results and retaining messages indefinitely. This innovative combination of features aimed to enhance the accessibility and usability of Usenet content for users on the World Wide Web. Deja was acquired by Google in February 2001.