| # | Company | Employees |
|---|---|---|
| 1 |
athenahealthathenahealth.com
The company strives to simplify healthcare with innovative technology for electronic health records, revenue cycle management, and patient engagement solutions |
8,956 |
| 2 |
Toastpos.toasttab.com
Toast empowers restaurants with cloud-based software and hardware to streamline operations, drive revenue, and enhance guest experience through POS, marketing, and HR solutions |
7,762 |
| 3 |
Dynatracedynatrace.com
This company specializes in providing a platform that unifies observability, business, and security data with AI-driven analytics and automation to optimize cloud operations and ensure flawless digital experiences |
6,090 |
| 4 |
Rapid7rapid7.com
Global leader in AI-powered managed cybersecurity operations, advancing organizations' cyber resilience through integrating security data, AI, and threat intelligence to reduce risk and disrupt attackers. |
3,268 |
| 5 |
Klaviyoklaviyo.com
Unified customer platform empowering brands with ownership of consumer data to automate personalized email/SMS communications, foster customer relationships, and drive growth |
2,902 |
| 6 | 2,556 | |
| 7 |
Semrushsemrush.com
A leading online visibility management platform offering a suite of marketing tools to help companies improve their online presence and results |
2,357 |
| 8 |
OutSystemsoutsystems.com
Provides an AI development platform for enterprises to rapidly build custom applications and AI agents while modernizing legacy core business systems. |
2,228 |
| 9 | 2,228 | |
| 10 |
HealthEdgehealthedge.com
Connecting health plans, providers, and patients using end-to-end digital technology solutions to support new business models, reduce administrative costs, and improve health outcomes. |
2,225 |
| 11 |
InterSystemsintersystems.com
InterSystems provides data platforms and connected care solutions for healthcare, business, and government to drive better decisions and outcomes worldwide |
2,127 |
| 12 | 2,011 | |
| 13 |
Duck Creek Technologiesduckcreek.com
Provides cloud-based software solutions for property, casualty, and general insurance industries enabling agile, intelligent, and transparent insurance operations. |
1,904 |
| 14 | 1,557 | |
| 15 |
Bullhornbullhorn.com
With 25 years of experience, this company provides industry-leading cloud-based software for the staffing and recruitment industry, helping firms scale globally |
1,514 |
| 16 |
Mendixmendix.com
Leading enterprise low-code platform for rapid application development, converting spreadsheets to apps, modernizing core systems, and building an organization-wide app portfolio. |
1,400 |
| 17 |
Flywireflywire.com
Global payments enablement and software company combining proprietary networks with vertical-specific technology to streamline complex billing across education, healthcare, travel, and B2B sectors. |
1,308 |
| 18 | 1,274 | |
| 19 |
Creatiocreatio.com
Provides an AI-native, no-code platform for CRM and workflow automation, enhancing customer and employee experiences and boosting team efficiency. |
1,158 |
| 20 |
Acquiaacquia.com
Open source Drupal based digital experience platform enabling innovators to manage customer data and content for increased engagement, conversion, and revenue. |
1,098 |
| 21 |
LogMeInlogmein.com
It provides remote work solutions, enabling businesses and individuals to work effectively from anywhere, with a strong portfolio of trusted products. |
994 |
| 22 |
Motionalmotional.com
Innovating driverless technology to create safe, reliable, and accessible vehicles through a joint venture between Aptiv and Hyundai Motor Group |
970 |
| 23 | 933 | |
| 24 |
DataRobotdatarobot.com
Value-driven AI company accelerating AI impact with innovative AI lifecycle platform for organizations to build, operate, and govern AI landscapes confidently |
881 |
| 25 | 840 | |
| 26 |
Quickbasequickbase.com
This company helps teams manage complex projects by connecting systems, automating workflows, and ensuring the right information is accessible to the right people |
810 |
| 27 |
Alegeusalegeus.com
The company specializes in SaaS-based benefit funding and payment solutions, delivering a white-label platform for account-based benefit programs with exceptional user experiences |
794 |
| 28 |
Anaquaanaqua.com
Provider of integrated IP management technology solutions, combining workflows, big data analytics, and tech-enabled services to inform IP strategy, streamline operations for top companies worldwide |
781 |
| 29 |
TLX Mobility - A Techlogix Companytlxmobility.com
TLX Mobility develops cloud-based mobility solutions to enhance field staff productivity, customer service, and operational efficiency for enterprises |
736 |
| 30 |
Bitsightbitsight.com
Provides precise insights from extensive cybersecurity data, enabling organizations to identify vulnerabilities, detect threats, and manage risks across their attack surface. |
736 |
| 31 |
LastPasslastpass.com
Helps individuals and organizations manage, protect access to AI, applications, and credentials from the browser, minimizing risk and ensuring productivity. |
712 |
| 32 |
Nasuninasuni.com
The company provides a hybrid cloud storage solution with scalability, security, and edge performance, consolidating NAS and backup while enhancing security and user productivity |
696 |
| 33 |
OneSpanonespan.com
Builds secure digital experiences and agreements using cybersecurity and e-signature solutions, protecting identities, mobile apps, and streamlining workflows for global enterprises. |
667 |
| 34 |
Dotmaticsdotmatics.com
Global leader in R&D scientific software connecting science, data, and decision-making with end-to-end solutions for research in biology, chemistry, and more Trusted by millions worldwide |
639 |
| 35 |
Trax Retailtraxretail.com
AI-powered platform delivering real-time retail data, shelf monitoring, analytics, and shopper engagement to global CPGs and retailers. |
616 |
| 36 |
InvoiceCloud, Inc.invoicecloud.net
Provides digital payment, customer engagement, and outbound disbursement solutions for utilities, government, and insurance industries, enhancing payment adoption and satisfaction. |
608 |
| 37 |
3Play Media3playmedia.com
This company offers captioning, transcription, translation, and video search services to customers in various industries, founded in 2008 by MIT graduates |
599 |
| 38 |
Wasabi Technologieswasabi.com
A data storage company providing simple, affordable, fast, and secure cloud storage solutions for a wide range of data types worldwide |
589 |
| 39 |
Coralogixcoralogix.com
A modern observability platform specializing in monitoring logs, metrics, trace, and security events, with a focus on operational efficiency and cost reduction |
589 |
| 40 |
smartShiftsmartshift.com
AI-powered solutions for SAP customers focusing on rapid, secure, and optimized custom code migration and modernization, trusted globally. |
586 |
| 41 |
Salsifysalsify.com
Salsify's Product Experience Management platform helps brand manufacturers, distributors, and retailers succeed in digital commerce through PIM, Syndication, and Automation |
583 |
| 42 |
Jenzabarjenzabar.com
Higher education technology solutions provider with tailored software and services to optimize performance across campus and student lifecycle globally |
564 |
| 43 |
Starburststarburst.io
Starburst offers a data lake analytics platform, based on open source Trino, to help companies access, organize, and consume data efficiently |
550 |
| 44 |
Arcadiaarcadia.io
Transforming healthcare through data insights and actions Providing data platform, analytics tools, and services to improve patient outcomes and optimize operations |
542 |
| 45 |
Insteminstem.com
Provider of IT applications for early development healthcare market, offering solutions for data collection, management, and analysis worldwide Supports clients globally for data-driven decision making |
526 |
| 46 |
Lookoutlookout.com
Secures mobile-driven enterprises by providing deep visibility into mobile endpoints, applications, network traffic, and AI interactions to detect threats and protect sensitive data. |
515 |
| 47 |
Crunchtimecrunchtime.com
CrunchTime provides software solutions for top restaurant brands worldwide to achieve operational excellence by managing inventory, staff scheduling, and more |
512 |
| 48 | 504 | |
| 49 | 500 | |
| 50 |
Mentor Collectivementorcollective.org
Provider of impact-driven mentoring programs for higher education institutions, with proven results in reducing melt rates and increasing retention Industry-leading and mission-driven Hiring opportunities available |
496 |
| 51 |
American Wellamwell.com
A leading telehealth platform in the US connecting providers, insurers, and patients to deliver affordable, high-quality care through digital solutions |
493 |
| 52 |
Dodge Construction Networkconstruction.com
Provides data-driven tools and analytics connecting professionals throughout commercial construction stages to simplify processes and foster business growth. |
481 |
| 53 |
Veson Nauticalveson.com
Provides software solutions for managing bulk marine freight, including contract management, vessel documentation, and data analytics for shipping. |
475 |
| 54 |
Dyaddyadtech.com
A company with over 20 years of experience in insurance industry, offering innovative solutions to enhance efficiency and productivity in insurance distribution chain |
474 |
| 55 |
Continuumcontinuum.net
Provides a proactive platform with integrated services for managed service providers, spanning security, backup, and monitoring, to help them grow. |
457 |
| 56 |
Workableworkable.com
Provides an all-in-one HR platform for businesses to source, hire, and manage employees effectively, with AI-powered tools and an applicant tracking system. |
455 |
| 57 |
Ataccamaataccama.com
An international software company specializing in data quality, master data management, data governance, and big data solutions for various industries |
454 |
| 58 | 450 | |
| 59 |
Dutchiedutchie.com
A technology partner for cannabis retailers, offering solutions for point of sale, payments, ecommerce, insurance, and more to optimize operations and enhance customer experiences |
447 |
| 60 |
Verisk Extreme Event Solutionsverisk.com
A pioneering company in catastrophe modeling, creating tools to predict and manage risk from natural catastrophes, cyber attacks, and pandemics Promotes resilience |
445 |
| 61 |
LogRocketlogrocket.com
The company offers a software tool that provides session replay, product analytics, and error tracking to help teams improve product experiences |
443 |
| 62 |
Profitero+profitero.com
Global commerce acceleration company providing intelligence-driven solutions for brands to optimize product availability, discoverability, and maximize conversions across 1200+ retailers in 70+ countries |
434 |
| 63 |
Earnixearnix.com
This company specializes in providing intelligent, agile, and real-time solutions for insurance and banking operations on a global scale |
429 |
| 64 |
codemantracodemantra.com
Global leader providing AI-driven Intelligent Document Processing platform for automating digital document accessibility, extraction, classification, and transformation services across various industries |
420 |
| 65 | 414 | |
| 66 |
Abacus Insightsabacusinsights.com
Abacus leverages healthcare data to improve patient care by breaking down silos and providing powerful insights through innovative technologies |
409 |
| 67 |
RxSenserxsense.com
A high-growth healthcare technology company providing cloud-based solutions for transparent pharmacy benefits administration, claims processing, and prescription savings services |
395 |
| 68 |
Rhapsodyrhapsody.health
A digital health platform specializing in healthcare integration, identity management, and clinical terminology expertise, empowering providers and health tech builders worldwide |
392 |
| 69 |
Panorama Educationpanoramaed.com
Education technology company providing software platform for schools to support student academic success, well-being, and overall development, with a focus on student, family, and teacher feedback |
391 |
| 70 | 386 | |
| 71 |
SeaChange Internationalseachange.com
A leading provider of Video Delivery Software Solutions, powering cloud and on-premise platforms for over 50 million subscribers worldwide |
375 |
| 72 |
Tempo Softwaretempo.io
The company offers Jira-native solutions for portfolio management, with tools like Timesheets and Roadmunk for increased efficiency |
369 |
| 73 | 359 | |
| 74 |
Brightcovebrightcove.com
Innovative streaming technology solutions connecting businesses with global audiences on various devices, enabling effective sales, reliable content streaming, and powerful communication |
351 |
| 75 |
Validity Inc.validity.com
It provides solutions for marketing, sales, and customer success teams to effectively target, engage, and retain customers using data. |
348 |
| 76 |
Robinrobinpowered.com
A workplace management platform offering desk and room booking, automation, and analytics for enhanced in-office productivity and workplace optimization since 2014 |
348 |
| 77 |
OVERJEToverjet.com
A dental AI company founded by MIT and Harvard experts, Overjet provides FDA-cleared technology for precise pathology detection and patient education |
341 |
| 78 |
Onapsisonapsis.com
Provides leading organizations with a platform for automated compliance, vulnerability management, threat detection, and secure development for their SAP applications. |
340 |
| 79 |
Cynet Securitycynet.com
All-in-one cybersecurity platform providing unified protection, detection, and expert support tailored for small-to-medium enterprises and MSPs. |
334 |
| 80 |
Opensignalopensignal.com
A global provider of independent insights on connectivity experiences, helping operators compete with executive scorecards, engineering analytics, and consumer decision dynamics |
329 |
| 81 |
ToolsGrouptoolsgroup.com
AI-powered supply chain and retail planning company leveraging probabilistic approach, AI, and real-time data for improved operational resilience and performance Offering career opportunities |
323 |
| 82 |
Blink - Employee Experience Platformjoinblink.com
Revolutionizing work life for frontline employees through a super-app that enables effective communication and engagement, reducing attrition rates significantly |
312 |
| 83 | 312 | |
| 84 |
Help Scouthelpscout.com
Support platform offering multi-channel customer service, knowledge base, reporting, and integrations to help businesses retain customers effectively. |
291 |
| 85 |
PathAIpathai.com
AI-powered pathology company improving patient outcomes through accurate diagnosis and effective treatment, leveraging machine learning with a diverse and passionate team |
281 |
| 86 |
Backlightbacklight.co
Provides AI-powered media workflow solutions integrating multiple tools to enhance creative and production team efficiency and storytelling impact. |
278 |
| 87 |
Jellyfishjellyfish.co
An Engineering Management Platform that aligns engineering work with business objectives by providing visibility into engineering organizations and optimizing resource allocation |
276 |
| 88 | 271 | |
| 89 |
Drift, a Salesloft companydrift.com
Inspires businesses engaging customer experiences. Translates conversational data, buyer behavior into deeper relationships, more pipeline and revenue. Human-centric, AI-powered platform delivers personalized experiences. |
271 |
| 90 | 257 | |
| 91 |
Bamboo Rosebamboorose.com
A retail product development and supply chain platform specializing in empowering collaboration, efficiency, and speed to market for global retailers and brands |
247 |
| 92 | 241 | |
| 93 |
LinkSquareslinksquares.com
It provides AI-powered technology for legal teams to manage contracts and projects efficiently, saving time and money for companies. |
241 |
| 94 |
Tomorrow.iotomorrow.io
Weather intelligence and climate adaptation platform using space technology and AI to help organizations predict impact, mitigate risk, and ensure operational resilience |
228 |
| 95 | 214 | |
| 96 |
TetraSciencetetrascience.com
A Scientific Data and AI Cloud platform connecting lab instruments and software to accelerate scientific discovery in the biopharma industry |
213 |
| 97 |
Arena by PTCarenasolutions.com
Provides unified product lifecycle and quality management systems enabling teams to collaborate efficiently and accelerate innovative product development and delivery. |
210 |
| 98 |
Lakeside Softwarelakesidesoftware.com
AI-driven platform providing proactive IT management, reducing costs, preventing failures, and enhancing decision-making through comprehensive digital employee experience insights. |
198 |
| 99 |
NetWitnessnetwitness.com
A global company offering scalable threat detection and response solutions with visibility, threat intelligence, analytics, and automation for efficient cybersecurity operations |
196 |
| 100 |
Immutaimmuta.com
This company enables organizations to securely access and protect their cloud data through sensitive data discovery, security controls, and data activity monitoring |
195 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 9, 2026.
More company lists in Boston
- The largest companies in Boston 988
- Software Development companies in Boston 131
- Financial Services companies in Boston 73
- Venture Capital and Private Equity Principals companies in Boston 72
- AI-native companies in Boston 49
- Higher Education companies in Boston 47
- IT Services and IT Consulting companies in Boston 45
- Hospitals and Health Care companies in Boston 43
- Investment Management companies in Boston 42
- Non-profit Organizations companies in Boston 36
- Real Estate companies in Boston 33
- Business Consulting and Services companies in Boston 29
- Technology, Information and Internet companies in Boston 27
The same list elsewhere in United States
- SaaS companies in the United States 5,726
- SaaS companies in New York 851
- SaaS companies in San Francisco 690
- SaaS companies in Austin 169
- SaaS companies in Chicago 126
- SaaS companies in Atlanta 105
- SaaS companies in Palo Alto 98
- SaaS companies in San Jose 78
- SaaS companies in Denver 75
- SaaS companies in Seattle 73
- SaaS companies in Miami 69
- SaaS companies in Dallas 67
- SaaS companies in Los Angeles 65
- SaaS companies in Houston 62
- SaaS companies in Santa Clara 58
- SaaS companies in Mountain View 54
- SaaS companies in San Diego 49
- SaaS companies in Washington 37
- SaaS companies in Sunnyvale 36
- SaaS companies in Tampa 34
- SaaS companies in Raleigh 27
- SaaS companies in Charlotte 26
- SaaS companies in Salt Lake City 26