Introduction
High school internships are a valuable way for students to gain real-world experience, build skills, and earn academic credits. For students aiming to graduate in 2025, securing the right internship is crucial. This guide provides 16 professional internship letter examples tailored for high school students seeking credits in 2025. These letters cover various scenarios, from application requests to thank-you notes, ensuring you have the perfect template for your needs.
1. Internship Application Letter for High School Credits
123 Oak Lane
Springfield, IL 62704
October 15, 2024
Ms. Jane Doe
Internship Coordinator
ABC Company
456 Maple Street
Springfield, IL 62703
Dear Ms. Doe,
I am writing to express my interest in the internship program at ABC Company for the 2024-2025 academic year. As a high school student, I am eager to earn credits while gaining hands-on experience in your esteemed organization.
I am particularly interested in the marketing department, as it aligns with my career aspirations. I have attached my resume for your review and look forward to the opportunity to contribute to your team.
Thank you for considering my application. I am available for an interview at your convenience.
Sincerely,
John Smith
2. Request for Internship Placement for Credits
789 Pine Road
Chicago, IL 60611
November 2, 2024
Dr. Michael Johnson
Career Counselor
Lincoln High School
321 Elm Street
Chicago, IL 60610
Dear Dr. Johnson,
I am writing to request your assistance in securing an internship placement for the 2025 academic year. I am eager to earn high school credits while gaining practical experience in the field of engineering.
I have researched several companies and am particularly interested in opportunities at Tech Innovators Inc. I believe this experience will be instrumental in shaping my future career.
Thank you for your guidance and support in this matter.
Sincerely,
Emily Davis
3. Thank You Letter for Internship Opportunity
456 Cedar Drive
Los Angeles, CA 90210
December 5, 2024
Ms. Sarah Wilson
HR Manager
Green Energy Solutions
789 Ocean Boulevard
Los Angeles, CA 90211
Dear Ms. Wilson,
I am writing to express my sincere gratitude for offering me the internship opportunity at Green Energy Solutions. I am thrilled to contribute to your team while earning high school credits for the 2025 academic year.
This experience will be invaluable as I pursue my passion for environmental science. I am committed to dedicating my best efforts to your organization and am eager to learn from your team.
Thank you once again for this opportunity.
Sincerely,
David Lee
4. Follow-Up Letter for Internship Application
321 Maple Avenue
New York, NY 10001
January 10, 2025
Mr. Robert Brown
Internship Coordinator
TechCorp Industries
654 Broadway
New York, NY 10013
Dear Mr. Brown,
I hope this letter finds you well. I am writing to follow up on my internship application submitted on December 20, 2024. I am eager to contribute to TechCorp Industries while earning high school credits for the 2025 academic year.
I understand that your team may be busy, but I would appreciate any update regarding the status of my application. I am confident that my skills and enthusiasm make me a strong candidate for this opportunity.
Thank you for your time and consideration.
Sincerely,
Olivia Green
5. Internship Confirmation Letter
654 Oak Street
Houston, TX 77002
February 15, 2025
Ms. Laura White
HR Manager
Energy Solutions LLC
987 Pine Road
Houston, TX 77003
Dear Ms. White,
I am pleased to confirm my acceptance of the internship position at Energy Solutions LLC for the 2025 academic year. I am excited to contribute to your team while earning high school credits.
I will ensure to complete all necessary paperwork and attend the orientation session on March 1, 2025. I am eager to learn and contribute to your organization.
Thank you for this opportunity.
Sincerely,
Michael Brown
6. Request for Internship Extension
321 Pine Boulevard
Phoenix, AZ 85001
March 20, 2025
Mr. Daniel Lee
Internship Supervisor
Desert Tech Inc.
456 Cedar Street
Phoenix, AZ 85002
Dear Mr. Lee,
I am writing to request an extension of my internship at Desert Tech Inc. I have thoroughly enjoyed my time here and believe that continuing this experience will greatly benefit my academic and professional growth.
I am confident that an extension will allow me to complete additional projects and gain more hands-on experience. I am willing to discuss this further and provide any necessary documentation.
Thank you for considering my request.
Sincerely,
Sophia Martinez
7. Internship Completion Letter
789 Maple Avenue
Dallas, TX 75201
April 10, 2025
Ms. Emily Davis
Internship Coordinator
Texas Healthcare
321 Oak Street
Dallas, TX 75202
Dear Ms. Davis,
I am writing to formally confirm the completion of my internship at Texas Healthcare. This experience has been instrumental in helping me earn my high school credits while gaining valuable insights into the healthcare industry.
I am grateful for the opportunities provided during my time here. I appreciate the guidance and support from your team, which has been essential to my growth.
Thank you for this enriching experience.
Sincerely,
Kevin White
8. Letter of Recommendation Request
654 Pine Road
San Francisco, CA 94111
May 5, 2025
Dr. Sarah Johnson
Internship Supervisor
Bay Area Tech
321 Cedar Boulevard
San Francisco, CA 94112
Dear Dr. Johnson,
I hope this letter finds you well. I am writing to request a letter of recommendation based on my internship experience at Bay Area Tech during the 2025 academic year.
Your endorsement would carry significant weight as I apply for college programs and future opportunities. I am proud of the work we accomplished together and would be grateful for your support.
Thank you for considering my request.
Sincerely,
Olivia Green
9. Internship Evaluation Letter
987 Oak Lane
Seattle, WA 98101
June 1, 2025
Ms. Laura Smith
Internship Coordinator
Pacific Northwest Corp.
456 Maple Street
Seattle, WA 98102
Dear Ms. Smith,
I am writing to provide feedback on my internship experience at Pacific Northwest Corp. This opportunity has been instrumental in helping me earn my high school credits while gaining practical skills in the field of environmental science.
I highly recommend this program to future students, as it offers a well-structured and supportive environment for learning and growth.
Thank you for your dedication to providing such a valuable experience.
Sincerely,
David Martinez
10. Internship Application Letter for STEM Field
321 Cedar Drive
Boston, MA 02101
July 15, 2025
Mr. Robert Wilson
Internship Coordinator
Boston Tech Labs
789 Pine Road
Boston, MA 02102
Dear Mr. Wilson,
I am writing to express my interest in the STEM internship program at Boston Tech Labs for the 2025 academic year. I am eager to earn high school credits while gaining hands-on experience in the field of robotics.
I am particularly drawn to the innovative projects your team has undertaken and believe that this experience will be instrumental in shaping my future career.
Thank you for considering my application.
Sincerely,
Sophia Brown
11. Letter of Intent for Internship
654 Maple Boulevard
Atlanta, GA 30301
August 10, 2025
Ms. Emily Johnson
HR Manager
Atlanta Healthcare
987 Oak Street
Atlanta, GA 30302
Dear Ms. Johnson,
I am writing to express my intent to participate in the internship program at Atlanta Healthcare for the 2025 academic year. I am eager to earn high school credits while gaining valuable experience in the healthcare industry.
I am committed to dedicating my best efforts to your team and am excited about the opportunity to contribute to your organization.
Thank you for considering my application.
Sincerely,
Michael Davis
12. Internship Termination Letter
789 Pine Road
Miami, FL 33101
September 5, 2025
Mr. Daniel Green
Internship Supervisor
Miami Tech Solutions
321 Cedar Avenue
Miami, FL 33102
Dear Mr. Green,
Due to unforeseen personal circumstances, I regret to inform you of my decision to terminate my internship at Miami Tech Solutions, effective September 15, 2025.
I appreciate the opportunities provided during my time here and am grateful for the experience and knowledge gained.
Thank you for your understanding.
Sincerely,
Kevin White
13. Internship Offer Acceptance Letter
456 Oak Street
Denver, CO 80201
October 2, 2025
Ms. Sarah Brown
HR Manager
Rocky Mountain Corp.
654 Maple Road
Denver, CO 80202
Dear Ms. Brown,
I am pleased to accept the internship offer at Rocky Mountain Corp. for the 2025 academic year. I am excited to contribute to your team while earning high school credits.
I will ensure to complete all necessary paperwork and attend the orientation session on October 15, 2025. I look forward to this opportunity and am eager to learn from your team.
Thank you for this opportunity.
Sincerely,
Emily Green
14. Internship Application Letter for Non-Profit Organization
321 Cedar Avenue
Washington, D.C. 20001
November 15, 2025
Ms. Laura Wilson
Internship Coordinator
Community Aid Network
789 Pine Road
Washington, D.C. 20002
Dear Ms. Wilson,
I am writing to express my interest in the internship program at Community Aid Network for the 2025 academic year. I am eager to earn high school credits while contributing to your organization’s mission.
I am particularly drawn to the community outreach programs and believe that this experience will be instrumental in shaping my future career in social work.
Thank you for considering my application.
Sincerely,
David Martinez
15. Internship Experience Reflection Letter
987 Maple Boulevard
Nashville, TN 37201
December 10, 2025
Mr. Robert Davis
Internship Supervisor
Nashville Arts Center
654 Oak Street
Nashville, TN 37202
Dear Mr. Davis,
As my internship at Nashville Arts Center comes to a close, I wanted to reflect on the valuable experience I have gained. This opportunity has been instrumental in helping me earn high school credits while exploring my passion for the arts.
I am grateful for the mentorship and support provided by your team, which has been essential to my growth and understanding of the industry.
Thank you for this enriching experience.
Sincerely,
Sophia Green
16. Internship Program Evaluation Letter
654 Pine Road
Austin, TX 78701
January 5, 2026
Ms. Emily Johnson
Internship Coordinator
Austin Tech Solutions
321 Cedar Avenue
Austin, TX 78702
Dear Ms. Johnson,
I am writing to provide feedback on the internship program at Austin Tech Solutions for the 2025 academic year. This experience has been instrumental in helping me earn high school credits while gaining practical skills in the tech industry.
I highly recommend this program to future students, as it offers a well-structured and supportive environment for learning and growth.
Thank you for your dedication to providing such a valuable experience.
Sincerely,
Michael Brown
Conclusion
Earning high school credits through internships is a fantastic way for students to gain real-world experience while preparing for their future careers. The 16 letters provided in this guide cover a wide range of scenarios, from application requests to completion letters, ensuring that you have the perfect template for any situation related to your 2025 internship.
By using these professional and polished templates, you can confidently communicate your intentions, gratitude, and feedback to employers and educators alike. Remember to tailor each letter to your specific circumstances and maintain a professional tone throughout.
Good luck with your internship journey and your academic pursuits in 2025!