
Buildzoom
100 Contractor
Building Radar
BuildKeeper
BuildPass
BuildStar
Contractor WorkZone
Source-dated public building-permit records for construction research.

LeetCode
Exercism
Codewars
HackerRank
CodeSignal
CodinGame
CodeCombat
Project Euler is a series of challenging mathematical/computer programming problems that will...

Which is more popular?
Based on our record, Project Euler seems to be more popular. It has been mentioned 415 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | permitgrab.com | projecteuler.net |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PermitGrab organizes source-dated building-permit records from covered U.S. jurisdictions. Available fields and update schedules vary by city; each city page shows its source date, scope, and published record roles. Subscribers can monitor public project activity in selected markets and decide...
No description of Project Euler yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of PermitGrab yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No PermitGrab videos yet. You could help us improve this page by suggesting one.
Project Euler Challenges 1–4 - Coding Challenges with Florin
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PermitGrab and Project Euler.
PermitGrab's answer
Building permits are public record everywhere in the United States. Anyone can go and read them. In practice almost nobody does, because there is no such thing as 'the permit database' - there are hundreds of separate municipal and county systems, each on different software, each with a different schema, and most with no way to ask the only question a contractor actually cares about: what is new since yesterday?
So the information sits there, free and public, and the contractor who could use it finds out about the job weeks later, if at all.
PermitGrab exists to close that gap. The hard part was never getting a permit record. It was doing it every day, across hundreds of jurisdictions that change their endpoints without warning, and turning inconsistent municipal records into something a roofer can act on before breakfast.
PermitGrab's answer
PermitGrab combines three public records that are normally sold separately, or not sold at all: building permits, code-enforcement violations, and property-owner contacts. Most permit tools stop at the permit. Pairing a filing with the violation history on that property and the owner of record is what turns an address into a conversation.
The other difference is the delivery model. It is one ranked email each morning rather than a dashboard you have to remember to check, and it is a flat monthly rate rather than per-lead pricing. Leads are not resold, so you are not calling a homeowner who just heard from seven other contractors.
PermitGrab's answer
It depends what you are comparing against.
Against lead-generation marketplaces such as Thumbtack, HomeAdvisor or Angi: those sell you a shared lead that several contractors receive at once, priced per lead. PermitGrab is a flat monthly rate and the records are not resold, because they are public filings rather than a homeowner form submission. You are reaching out first instead of competing on response time.
Against construction data platforms such as BuildZoom, Shovels or ConstructConnect: those are generally built for enterprise research, analytics or commercial project intelligence, and are priced accordingly. PermitGrab is aimed at the individual contractor who wants to know what got filed in their city this morning, and it adds code violations and property-owner contacts alongside the permit rather than the permit alone.
Against checking the county portal yourself: the data is genuinely free and public. The work is that it is spread across hundreds of separate municipal systems with different formats, and none of them tell you what changed today.
PermitGrab's answer
Small and mid-sized contractors who sell into residential and light commercial work, and who do their own prospecting.
The clearest fits are roofing, HVAC, plumbing, electrical, general contracting, remodeling, restoration, solar, fencing, concrete and landscaping. A new-construction permit means every one of those trades has work coming. A re-roof permit means a solar installer has a fresh roof to quote.
It also works for building-material suppliers and manufacturer reps who want to know which builders are active in a territory, and for investors and agents who use code-enforcement records to find owners with a reason to sell.
It is a poor fit for anyone who needs national enterprise coverage with an SLA, or who wants commercial project intelligence at the pre-bid stage. That is a different product category.
PermitGrab's answer
On the ingestion side the work is mostly adapters rather than a single framework. Municipal data arrives through ArcGIS FeatureServer and MapServer endpoints, Socrata, CKAN, Accela ACA portals, Tyler EnerGov self-service, OpenGov and a handful of one-off formats, so each source gets its own field mapping and freshness check.
Share your experience with using PermitGrab and Project Euler. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of PermitGrab yet. Be the first one to post
Project Euler provides a large collection of challenges in the domain of computer science and mathematics. The challenges typically involve writing a small program to figure out the solution to a clever mathematical...
If you are studying algorithms and computer programming, chances are you’ve heard of Project Euler. A collection of mathematical problems made for problem solvers who are interested to combine mathematics and...
Recommendations tracked on public social media and blogs since March 2021.


Tracking PermitGrab since Jul 2026.
Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 5 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 8 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really... - Source: Hacker News / 10 months ago
When comparing PermitGrab and Project Euler, you can also consider the following products.

Pick the best home improvement contractors.
Compare Buildzoom to PermitGrab or Project Euler:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to PermitGrab or Project Euler:


Download and solve practice problems in over 30 different languages.
Compare Exercism to PermitGrab or Project Euler:

Skyrocket your sales with early stage commercial construction leadst and monitoring with real-time construction project data.
Compare Building Radar to PermitGrab or Project Euler:
