Holloday LLC

Experts at building web apps and websites that integrate with MailChimp


We offer web app development, web development, custom web design and internet marketing. Clients from Philadelphia and around the world have chosen Holloday time and time again for our favorable pricing, speedy service and exceptional quality.

If you need MailChimp API integration, contact us and let's get started on making your project a success!


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- 01/08/2018

Troy got the job done promptly and effectively. Good guy & a good worker.


- 12/07/2016

Troy is amazing! We had an extremely complex project that involved embedding images from a 3rd party API into MailChimp's automation workflow, possibly the hardest thing I could imagine setting up in MailChimp, but not a problem for Troy. He delivers on time, on budget, and is exactly the kind of developer you would want to work with.

Highly recommended!


- 07/21/2016

Tory is a Master. He completed my project in 4 days, did it flawlessly and for a fair price. He was easy to communicate with and I plan on working with him in the future.

I did my due diligence beforehand and received quotes from 20 different experts MailChimp offered and Troy had one of the best prices, quickest response times, and stood out from the Pack.

I would highly recommend working with him for whatever project you may need.


- 01/27/2016

Troy is an API wizard. He inserted Google reCaptcha into our subscribe form and linked it to Mailchimp. The system now collects the subscriber information we need and everything works flawlessly.


- 01/06/2016

Troy responded promptly and did my task quickly, completely, and for a good price. Will definitely use him again in the future should the need arise. Highly recommended.


- 12/19/2015

Troy is great. Helped me work out my idea that involved integrations between three different online services and then got it done faster then I expected. Did several rounds of debugging and was completely thorough in making sure everything was complete. True professional.


- 11/10/2015

Troy was excellent to work with. He completed the work on time and on budget and answered all of my questions about the system he had implemented. Will be using him again in the future.


- 11/06/2015

Troy was great to work with. A true mailchimp expert. After struggling for a while with an API problem, he had it done and dusted in a few days. Wish we had gone to him at the start :)


- 09/15/2015

Troy is great to work with. Very impressed with his prompt communications and professionalism. I can highly recommend him for MailChimp API integration. I will definitely contact him again in the future. Thanks tons, Troy!


- 08/19/2015

Troy was great to work with! He knows how to solve complex API integration challenges gave our project the detailed attention it required to get the job done! I will definitely look to hire him again soon!! Thanks so much Troy!


- 06/22/2015

Troy expertly guided us through transitioning an application that used another vendor's API to MailChimp's. Great communication, fair prices. Solid recommendation.


- 03/14/2015

Holloday LLC is an expert at building web apps that integrate with MailChimp. They processed our request and built our web app within 12 hours! They are professional, courteous, and masters of their craft.

Our request involved a complex JavasScript modification that Holloday LLC implemented flawlessly. They are exceptional programmers, experts in PHP 5, JavaScript, HTML 5, and well as various other programming languages. The web app that they built works on modern browsers as well as Apple Products, such as the iPhone and iPad.

We are very grateful to Holloday LLC and pleased that they responded to our request for expert assistance so quickly. I would not hesitate to do business with them again or recommend them to anyone else needing assistance with creating a web app that integrates with MailChimp!

Regards, Gameroom Show https://www.gameroomshow.com


- 12/01/2014

Troy's knowledge is outstanding. He did a great job and deliverd the project very quickly.

I can definitely recommend Troy when you're looking for a Mailchimp expert!


- 10/01/2014

Incredibly impressed with Troy's talent & knowledge of MailChimp - Work that we asked someone else to do was quoted 30 hours - Troy got it done within 2 (which is the time frame we actually thought the project needed!).

His communication was incredible and his work FAST and accurate.

We would highly recommend Troy to anyone who is looking for API work with their mailchimp account.

Mike Gilligan

- 03/21/2014

I was searching for a MailChimp API specialist. I contacted two vendors. One by submitting an online request form because they didn't list a phone number and the other, Troy Holloday, by telephone because he DID list a phone number AND actually answered it. We discussed the project and within 24 hours I had a quote, an agreement to proceed and work began. The other vendor only sent an automated email and then another email asking me to schedule an appointment to talk days later. Troy responds promptly and does good work. I look forward to working on many more projects with him.

Tony Lister

- 12/07/2013

We wanted a backup of all of our MailChimp lists into CSV format to be run daily. I gave Troy an outline of our requirement and within a few days he provided us with scripts to do this. Communication from the point of requesting a quote to completion was crisp and helpful. I certainly recommend T Holloday.


- 12/02/2013

Responded to request right away, responses during project very quick, and reasonable rates. Would definitely and likely work with again in the near future

Bill G

- 07/26/2013

Troy developed some (Klipfolio) dashboards using MailChimp data and API. We're satisfied about the collaboration.

So I can absolutely recommend T Holloday for this kind of work. He delivered what was promised within time & budget.

Aaron Wong

- 06/25/2013

We had an incident that happened within our MailChimp account that needed to be resolved within a few hours. I picked up the phone, called Troy, and within less than an hour, he provided us with a solution through the API of our account.

I called him on a Friday afternoon and he was able to fix what was wrong!

I highly recommend him for any API or development work! Exceptional service and friendly customer service.

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