What people say about Justin Sonnenreich
Client testimonials, leadership recommendations, peer observations, and public recognition—kept distinct, scored on a 30-point authority scale, and linked to the place each statement appeared.
Praise for MarkitAds is labeled as praise for Justin and the team. Institutional appearances are recognition, not testimonials. Identity-unresolved archive quotes stay off the wall.
An AI Builder doing the work
Justin is not presented as a hypothetical success story. The profile links the current program endorsement to a public result and to the entity home Leo Pohlmann helped him assemble.
Justin Sonnenreich is a great example of an AI Builder in our program.
MarkitAds is the best one I’ve ever hired. I’d recommend them to any founder, executive, or startup who’s ready to be taken seriously.
Proof tied to the work
The strongest records say what Justin or MarkitAds did, who observed it, and where the statement is still public.
Justin, I want to acknowledge and congratulate you and your campus team members for your great work with Lossdog. You surpassed our prescribed goals! Communication and execution were terrific! We will certainly work with you again.
We’ve worked with Justin and the MarkitAds team since January 2018. They actually perform, are professional, and are always transparent about their work.
MarkitAds is doing a fantastic job revolutionizing the PR industry.
The attention to detail for branding and quality of daily content were excellent! I would recommend MarkitAds to any e-commerce brand or social media brand any day!
Justin is simply one of the best bosses I’ve ever had… patient in explaining my tasks… always willing to help… committed and dedicated to his work.
Leo helped assemble the entity home
The collaboration is part of the proof: a real AI Builder project, a real public website, and a documented handoff—not a classroom exercise.
“Justin is a serial builder.”
Leo Pohlmann documented the first Justin–Dennis working session and the personal-brand site he built for Justin. His account connects the public page to the people who assembled it.
Read Leo’s original English article →
Photo and account: Leo Pohlmann · July 10, 2026
Thank you to Justin Sonnenreich for introducing this amazing opportunity!
Named community reactions
These are public and useful, but they are not allowed to outrank detailed client evidence. All ten come from Justin’s July 2, 2025 company-growth post and are deduplicated as one reaction cluster.
This is such a great story Justin, huge congrats on how far you’ve taken it already.Christopher FilipiakPublic LinkedIn reaction
Love how this started with curiosity and grew into impact.Jason WulfsohnPublic LinkedIn reaction
I remember the humble early days of Markit. Beautiful to see it blossom in real time!Alex SpencerPublic LinkedIn reaction
It’s inspiring seeing how much MarkitAds has grown since high school.Jack AndersonPublic LinkedIn reaction
From a small desk to a growing team and AI-driven platform—truly inspiring.Robert BakerPublic LinkedIn reaction
Incredible journey, Justin! Excited to see where this leads next!Benedict EdokpolorPublic LinkedIn reaction
Came a long way from Supreme drops in the Pyle bathroom.Benjamin SikesPublic LinkedIn reaction
Great work! Happy to be a part of the team.Jake DedmonPublic LinkedIn reaction
Congratulations Justin. Well done.Gary R. GreensteinPublic LinkedIn reaction
Good work Top J.Tristen OdhamPublic LinkedIn reaction
Recognition is not a testimonial
These third-party records help establish the same person and career arc. They are shown as recognition, not counted among the nine proof records.
Launch Chapel Hill
MarkitAds appeared in the Rams to Riches founder cohort and accelerator community.
See the original cohort post →Wisconsin entrepreneurship coverage
The Wisconsin School of Business featured Justin in its StartUp Learning Community coverage.
Read the institutional source →Why some praise leads
Each featured record is scored against Justin’s buy box—founder leadership, student-powered execution, PR, campus marketing, and AI-enabled operating systems—not simply how flattering it sounds.
| Rank | Source | Why it carries weight | Breakdown | Total |
|---|---|---|---|---|
| 1 | Jeff Joseph | Named client strategist; direct praise tied to an over-goal campaign; MarkitAds reports 6,200 sign-ups | 7 + 10 + 10 | 27 |
| 2 | Scott Arey | Named senior finance leader and client; direct comparison and recommendation | 8 + 8 + 10 | 26 |
| 3 | Dennis Yu | Program founder; exact AI Builder positioning | 8 + 6 + 10 | 24 |
| 4 | Julie Greenstein | Long-term client; duration, performance, professionalism, transparency | 6 + 8 + 10 | 24 |
| 5 | Emil Runge | Named accelerator director; public video testimonial | 8 + 5 + 9 | 22 |
| 6 | Jesse Ryan | Named CEO; specific branding/content recommendation | 5 + 7 + 9 | 21 |
| 7 | Barbara Lopes Martins | Detailed leadership recommendation on Justin’s public profile | 4 + 8 + 8 | 20 |
| 8 | Leo Pohlmann | Named collaborator documenting the site and founder story | 5 + 7 + 8 | 20 |
| 9 | Keenan Gyure | Named mentorship thanks; relevant but less specific | 3 + 4 + 7 | 14 |
Editorial boundary: 24–30 leads; 15–23 supports; under 15 stays secondary. A MarkitAds testimonial supports Justin’s operating record but is not rewritten as if the speaker praised Justin personally. Dates are source-publication dates unless the source gives a testimonial date.
See the builder behind the proof.
Return to Justin’s story, or talk with him about campus activations, earned media, and go-to-market strategy.