| First ISCCP Regional Experiment | Academic & Science |
| Finance Insurance and Real Estate | Accounts and Finance |
| Firepond, Inc. | Business |
| Focus Intensity Resilience Enthusiasm | Business |
| Financial Independence Retire Early | Business |
| Financial Independence Retiring Early | Business |
| Financial Independence and Retiring Early | Business |
| Financial Independence Retired Early | Business |
| Financial Independence and Retire Early | Business |
| Family Intergenerational Religious Education | Community |
| Fellowship for International Revival and Evangelism | Community |
| Fellowship Inspiration Righteousness And Edification | Community |
| First In Relationship Education | Community |
| Family, Integrity, Responsibility, and Enthusiasm | Community |
| Foundations for Intimate Relationship Encounters | Community |
| Florida International Reptile Expo | Community |
| Friends For International Relief And Education | Community |
| Faith, Intercession, Repentance, Evangelism | Community |
| Freedom Inspired Real Education | Community |
| Fight, Intensity, Relentless, Excellence | Community |
| Fellowship of Independent Reformed Evangelicals | Community |
| for Individual Rights in Education | Community |
| Finding Innovation in Rural Education | Community |
| Family Interests Recreation Entertainment | Community |
| Fully Integrated Robotised Engine | Computing |
| Flexible Intelligent Routing Engine | Computing |
| Far Infra Red Experiment | Computing |
| Film Image Recorder | Computing |
| Framework for Information Retrieval Applications | Computing |
| Flames Interactive Runtime Executable | Computing |
| Flexible Intra Routing Environment | Computing |
| Fragmenting Ip Real-Time Engine | Computing |
| Fire Token | Cryptocurrency |
| FireFlame Inu | Cryptocurrency |
| Fireball | Cryptocurrency |
| Solfire Protocol | Cryptocurrency |
| Fire Protocol | Cryptocurrency |
| Feminist International Radio Endeavor | General |
| Feminist Issues, Rights, and Education | General |
| Faith Intercession Repentence And Evangelization | General |
| Food Inspiration Rejoicing And Edification | General |
| Faith Involvement Relationship And Excellence | General |
| Fire In Residence Escape | General |
| First Identified Rabit Energy | General |
| Forensics And Incident Response Environment | General |
| Forensics And Incident Response Enviroment | General |
| First Issue Reserved Edition | General |
| Foundation for Individual Rights in Education | General |
| Foundations in Reaching Excellence | General |
| Financially Independent Retired Early | General |
| Fast Internal Regulatory Element | General |
| Faith In Reaching Everyone | General |
| Financially Independent Retiring Early | General |
| Filing Information Returns Electronically | General |
| Functional Intensive Resistance Exercise | General |
| Feedback In Realistic Environments | General |
| Flyby of Io with Repeat Encounters | General |
| Foolish Idealist Returns to Employer | General |
| Fearless Initiative for Recovery and Empowerment | General |
| Fully Integrated Robotized Engine | General |
| Fiat Regata | General |
| Freedom Is Real Education | Governmental |
| Fight, Isolate, Report, Extinguish | Governmental |
| Faith, Intercession, Repentance, and Evangelism | Governmental |
| Fingerprint Identify Report And Enforce | Governmental |
| Forensic and Incident Response Environment | Governmental |
| Functionally Integrated Railway Electronics | Governmental |
| Forensic Incident Response Environment | Governmental |
| Future Internet Research and Experimentation | Internet |
| Feed Intake Recording Equipment | Medical |
| Febrile Infection-Related Epilepsy | Medical |
| Fire Insurance and Real Estate | Real Estate |
| Facilitate Industry and Research in Europe | Regional |
| Fully Integrated Racquet Engineering | Sports |
| Free Internet Roleplay Experiences | Sports |
