D21 Digital Agency LLC

Visit Website Write a Review Claim this Company

Details

Founded:
2018
Hourly Rates:
$50 - $99 / hr
Employees:
2 - 9
Ratings:
4.7 9 Reviews

Industries Served

Environmental Services Financial Services Government & Public Sector Construction Gaming & Gambling Sports & Fitness Manufacturing Energy & Utilities Insurance

Where We Specialize

19% Software Development
Software Development 19%
Tokenization Platform 17%
Virtual Reality 12%
IT Services 11%
Smart Contract 9%
IT Consulting 9%
AI Development 7%
Bot Development 6%
Mobile App Development 4%
Game Development 4%
Blockchain Development 2%

Industry Expertise

Insurance33% Restaurant28% Automotive20% Food19%

Typical Project Size

41% Midmarket Business
33% Enterprise
26% Small Business

About

D21 Digital Agency LLC works with clients to plan, build, and ship digital products. Their core services include Mobile App Development and Web Development. D21 Digital Agency LLC employs 2 - 9 people. Typical hourly rates run around $50 - $99 / hr/hr. This gives a quick snapshot of what to expect when working with D21 Digital Agency LLC.

D21 Digital Agency LLC Reviews

4.7 9 Reviews
Submit Review

Dependable Blockchain Development Partner for a Growing Environmental Services Business

Ashley Henderson / IT Director | Sep 05, 2026

We were very happy with how this project went. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

The result looks great and performs well, and our internal team found it easy to take over.

I would recommend D21 Digital Agency LLC to anyone looking for a dependable Blockchain Development partner.

Project summary

Our company worked with D21 Digital Agency LLC to build a supply chain traceability prototype on a permissioned blockchain. The work covered requirements, design, development, testing and launch support. The engagement ran for about 2 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Blockchain Development
Project Cost:
$150,000 to $499,999
Project Duration:
May 2026 - Jul 2026
Business Type:
Environmental Services
Location:
Austin, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Environmental Services company based in Austin, USA. I'm the IT Director and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to build a supply chain traceability prototype on a permissioned blockchain.
What services did the company provide for your project?
End-to-end Blockchain Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable Blockchain Development partner.

Good value and a team that genuinely cares about the result

Oliver Clarke / Managing Director | Aug 27, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

Feedback from our customers has been very positive so far. If you need a team that communicates well and delivers, they are a good choice.

Project summary

D21 Digital Agency LLC was brought in to build the multiplayer features for our existing game. Their team handled planning, development and QA, with our product owner signing off each milestone. Overall it was a 9-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$10,000 to $49,999
Project Duration:
Nov 2025 - Aug 2026
Business Type:
Financial Services
Location:
Nottingham, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Managing Director at Evergreen Wealth Ltd. We operate in Financial Services and most of our customers are in and around Nottingham, UK.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to build the multiplayer features for our existing game before our busy season.
What services did the company provide for your project?
End-to-end Game Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
They had relevant experience in Financial Services and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Honest advice and solid execution

Rachel Bennett / Founder & CEO | Aug 21, 2026

Our experience with D21 Digital Agency LLC was really positive from start to finish. We dealt with the same core team throughout, so we did not have to keep re-explaining things. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

We launched on schedule and have not had any major issues since. Happy to recommend them.

Project summary

Our company worked with D21 Digital Agency LLC to automate document data extraction that our team was doing by hand. The work covered requirements, design, development, testing and launch support. Overall it was a 6-month engagement.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$10,000 to $49,999
Project Duration:
Dec 2025 - Jun 2026
Business Type:
Government & Public Sector
Location:
San Diego, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder & CEO at Cobalt Council Services, a Government & Public Sector company based in San Diego, USA. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We needed to automate document data extraction that our team was doing by hand, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mainly AI & Machine Learning. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
They had relevant experience in Government & Public Sector and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Dependable AI & Machine Learning Partner for a Growing Construction Business

Ryan Johnson / Managing Director | Jul 20, 2026

D21 Digital Agency LLC did an excellent job for us. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Since launch, everything has been stable and our team has adapted to it quickly. If you need a team that communicates well and delivers, they are a good choice.

Project summary

D21 Digital Agency LLC was brought in to automate document data extraction that our team was doing by hand. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 3-month engagement.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 5.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$50,000 to $149,999
Project Duration:
Feb 2026 - May 2026
Business Type:
Construction
Location:
Phoenix, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Construction company based in Phoenix, USA. I'm the Managing Director and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to automate document data extraction that our team was doing by hand before our busy season.
What services did the company provide for your project?
End-to-end AI & Machine Learning — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
They had relevant experience in Construction and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Construction clients before.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable AI & Machine Learning partner.

Great team to work with — professional, responsive and reliable

Aoife Byrne / Co-Founder | Jul 05, 2026

D21 Digital Agency LLC did an excellent job for us. They were upfront about what was realistic within our budget, which helped us prioritise the right features. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

We are already seeing better numbers than before the project. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with D21 Digital Agency LLC to develop a field-staff app with offline mode that syncs back to our main system. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 4 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
Feb 2026 - Jun 2026
Business Type:
Gaming & Gambling
Location:
Dublin, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Gaming & Gambling company based in Dublin, Ireland. I'm the Co-Founder and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to develop a field-staff app with offline mode that syncs back to our main system before our busy season.
What services did the company provide for your project?
Mobile App Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
We compared three or four agencies. D21 Digital Agency LLC asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Easy to work with and very transparent on timelines and cost

Jessica Brooks / Project Manager | Jun 03, 2026

I would rate this engagement highly on almost every front. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We launched on schedule and have not had any major issues since.

I would recommend D21 Digital Agency LLC to anyone looking for a dependable AI & Machine Learning partner.

Project summary

We partnered with D21 Digital Agency LLC to add an AI chatbot to our support site that answers questions from our help docs. The work covered requirements, design, development, testing and launch support. The engagement ran for about 8 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$50,000 to $149,999
Project Duration:
Sep 2025 - May 2026
Business Type:
Sports & Fitness
Location:
Raleigh, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Harborview Athletics Inc is a Sports & Fitness business in Raleigh, USA. As Project Manager, I was responsible for this project on our side and the main contact for D21 Digital Agency LLC.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to add an AI chatbot to our support site that answers questions from our help docs before our busy season.
What services did the company provide for your project?
AI & Machine Learning, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
We compared three or four agencies. D21 Digital Agency LLC asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Reliable Mobile App Development Partner That Delivered What They Promised

Lukas Fischer / Founder & CEO | Feb 14, 2026

Our experience with D21 Digital Agency LLC was really positive from start to finish. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We are already seeing better numbers than before the project. We are already discussing the next phase with them.

Project summary

We partnered with D21 Digital Agency LLC to develop a field-staff app with offline mode that syncs back to our main system. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 9 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
Apr 2025 - Jan 2026
Business Type:
Manufacturing
Location:
Munich, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder & CEO at Maple Fabrication GmbH, a Manufacturing company based in Munich, Germany. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to develop a field-staff app with offline mode that syncs back to our main system.
What services did the company provide for your project?
Mobile App Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Dependable Software Development Partner for a Growing Energy & Utilities Business

Ryan Foster / Chief Digital Officer | Feb 01, 2026

We were very happy with how this project went. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

Feedback from our customers has been very positive so far. I would recommend D21 Digital Agency LLC to anyone looking for a dependable Software Development partner.

Project summary

We engaged D21 Digital Agency LLC to develop a scheduling and dispatch tool for our field team. The project was split into milestones, with a working build shared at the end of each one. We worked together for around 3 months.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Software Development
Project Cost:
$500,000+
Project Duration:
Sep 2025 - Dec 2025
Business Type:
Energy & Utilities
Location:
Dallas, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Chief Digital Officer at Summit Solar Inc, a Energy & Utilities company based in Dallas, USA. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to develop a scheduling and dispatch tool for our field team.
What services did the company provide for your project?
Software Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
They had relevant experience in Energy & Utilities and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable Software Development partner.

Great Experience With D21 Digital Agency LLC on Our IT Managed Services Project

Sophie Clarke / Founder & CEO | Jan 03, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. They shared working builds regularly, so we could test early and give feedback before things were locked in. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We are already seeing better numbers than before the project.

We would definitely work with them again.

Project summary

Our company worked with D21 Digital Agency LLC to provide ongoing monitoring and support for our cloud infrastructure. The work covered requirements, design, development, testing and launch support. The engagement ran for about 5 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
IT Managed Services
Project Cost:
$10,000 to $49,999
Project Duration:
Jul 2025 - Dec 2025
Business Type:
Insurance
Location:
Cardiff, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder & CEO at Blue Harbor Underwriters Ltd, a Insurance company based in Cardiff, UK. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to provide ongoing monitoring and support for our cloud infrastructure.
What services did the company provide for your project?
IT Managed Services, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
We compared three or four agencies. D21 Digital Agency LLC asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Insurance clients before.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable IT Managed Services partner.
Get Listed