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Apache Lucene VS Apache Solr_

As of 4 November 2026, Apache Solr is named by 371 companies and Apache Lucene by 154; Apache Lucene skews to companies under 200 people (49% vs 49%), Apache Solr to companies over 1,000 (29% vs 31%).

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

The website-and-DNS footprint is not comparable between a marketing suite and a CRM: Apache Lucene's script and mail records show on hundreds of thousands of small sites, Apache Solr rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

Apache Lucene: 2–200 employees
49%
Apache Solr: 2–200 employees
49%
Apache Lucene: 1,000+ employees
31%
Apache Solr: 1,000+ employees
29%
Postings per company, 90 days
1.8 · 1.9
Website or DNS footprint
0 · 0
154companies name Apache Lucene
371companies name Apache Solr
114name both
277 · 715postings in 90 days, Apache Lucene · Apache Solr
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentApache LuceneshareApache SolrshareLeans
Self-employed64%92%even
2-10 employees106%288%even
11-50 employees2516%6618%even
51-200 employees4026%8623%Apache Lucene
201-500 employees128%339%even
501-1000 employees149%4312%Apache Solr
1001-5000 employees2416%6116%even
5001-10000 employees96%144%Apache Lucene
10,001+ employees149%318%even
By industry
SegmentApache LuceneshareApache SolrshareLeans
Technology & software8857%22360%Apache Solr
Business & finance services2919%5314%Apache Lucene
Manufacturing & industry117%226%even
Media & content75%216%even
Public, community & associations64%134%even
Consumer services & leisure53%62%even
Commerce & trade32%164%Apache Solr
Automotive21%62%even
Utilities & infrastructure21%41%even
Hospitality & travel11%21%even
Transport, logistics & rental––41%outside top 12
Health care––10%outside top 12
By country
SegmentApache LuceneshareApache SolrshareLeans
United States10166%22661%Apache Lucene
United Kingdom106%113%Apache Lucene
Germany75%236%even
Brazil53%21%Apache Lucene
Canada32%82%even
Switzerland32%41%even
France32%185%Apache Solr
India32%185%Apache Solr
Sweden32%41%even
Belgium11%––outside top 12
Czechia11%––outside top 12
Greece11%––outside top 12
Italy––72%outside top 12
Austria––31%outside top 12
Lithuania––31%outside top 12
Postings by team (share of each tool's postings)
SegmentApache LuceneshareApache SolrshareLeans
Software engineering24958%78463%Apache Solr
Data & AI6315%17914%even
IT operations & business systems4410%958%Apache Lucene
Customer service & success41%20%even
Product, program & project management41%252%even
Legal, compliance & risk31%––outside top 12
Engineering (non-software)20%71%even
Marketing & communications10%50%even
Sales10%71%even
Unclassified––71%outside top 12
arts media and entertainment––20%outside top 12
Design & UX––20%outside top 12
Human resources––20%outside top 12
Administration & office––10%outside top 12
Business development & strategy––10%outside top 12
construction and civil––10%outside top 12
Education & training––10%outside top 12
General management & consulting––10%outside top 12
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Apache Solr is named by 371 companies in job postings and Apache Lucene by 154; 114 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/apache-lucene-vs-apache-solr)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • SegmentsCountry, size and industry from the company profile built from its website.
  • Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
FAQ

Apache Lucene vs Apache Solr: questions

Which is more used, Apache Lucene or Apache Solr?

By companies naming it in their own job postings, Apache Solr (371) over Apache Lucene (154). By website-and-DNS footprint, Apache Solr (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses Apache Lucene?

49% of Apache Lucene companies have 2 to 200 employees, against 49% for Apache Solr. 31% of Apache Lucene companies have over 1,000 employees, against 29% for Apache Solr.

Do companies run both?

114 companies name both in their postings, usually Apache Lucene in marketing and Apache Solr in sales, or during a migration.

Where do these numbers come from?

From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.

Companies and people

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