Luminance vs Relativity
Side-by-side on valuation, funding, investors, founders & more
Comparison updated: April 2026
Relativity is valued at $3.6B — more than 3x Luminance's N/A.
Head-to-Head Verdict
Luminance
0 wins
Relativity
3 wins
🇬🇧 United Kingdom · Eleanor Sheridan-Sherlock
Valuation
N/A
Total Funding
$165M
150 employees
🇺🇸 United States · Andrew Sieja
Valuation
$3.6B
Total Funding
N/A
1750 employees
Both companies compete in the AI Legal space, though from different geographies — Luminance in United Kingdom and Relativity in United States. Different stages (Series C vs Private) mean these companies face fundamentally different operational priorities.
Analyst Summary
Built from real data · Updated April 2026
Within AI Legal, Luminance and Relativity rank among the most closely watched rivals. Luminance is a UK-based AI legal technology company founded in 2015 that specializes in document intelligence and legal AI solutions. Relativity is a cloud-based legal technology platform founded in 2001 that provides software solutions for legal discovery, case management, and document review.
Only Relativity has a public valuation on record ($3.6B); Luminance's has not been disclosed. Luminance has raised $165M in disclosed funding.
Luminance is the younger company by 14 years, having launched in 2015 compared to Relativity's 2001 founding. Stage-wise, Luminance is classified as Series C and Relativity as Private, reflecting divergent fundraising histories. Team sizes also differ: Luminance employs 150 people versus Relativity's 1750.
Based in 🇬🇧 United Kingdom and 🇺🇸 United States respectively, Luminance and Relativity tap into different talent markets and regulatory environments. The Awaira Score gives Relativity (75) a notable lead over Luminance (64). Under Eleanor Sheridan-Sherlock and Andrew Sieja respectively, both companies continue to chart aggressive growth paths.
Key Numbers
Funding Velocity
Luminance
Relativity
Funding History
Luminance has completed 3 funding rounds, while Relativity has gone through 1. Luminance's most recent round was a Series C of $123M, compared to Relativity's Series A ($50M). Luminance is at Series C while Relativity is at Private — different points in their growth trajectory.
Team & Scale
Relativity has the bigger team at roughly 1750 people — 12x the size of Luminance's 150. Relativity has a 14-year head start, founded in 2001 vs Luminance's 2015. Geographically, they're in different markets — Luminance operates out of United Kingdom and Relativity from United States.
Metrics Comparison
| Metric | Luminance | Relativity |
|---|---|---|
💰Valuation | N/A | $3.6B |
📈Total Funding | $165M | N/A |
📅Founded | 2015WINS | 2001 |
🚀Stage | Series C | Private |
👥Employees | 150 | 1750 |
🌍Country | United Kingdom | United States |
🏷️Category | AI Legal | AI Legal |
⭐Awaira Score | 64 | 75WINS |
Key Differences
Market experience: Relativity has 14 years more (founded 2001 vs 2015)
Growth stage: Luminance is at Series C vs Relativity at Private
Team size: Luminance has 150 employees vs Relativity's 1750
Market base: 🇬🇧 Luminance (United Kingdom) vs 🇺🇸 Relativity (United States)
Direct competitors: Both operate in the AI Legal market segment
Awaira Score: Relativity scores 75/100 vs Luminance's 64/100
Which Should You Choose?
Use these signals to make the right call
Choose Luminance if…
- ✓Stronger investor backing — raised $165M
- ✓United Kingdom-based for regional compliance or proximity
- ✓Luminance is a UK-based AI legal technology company founded in 2015 that specializes in document intelligence and legal AI solutions
Choose Relativity if…
Top Pick- ✓Higher Awaira Score — 75/100 vs 64/100
- ✓More established by valuation ($3.6B)
- ✓More market experience — founded in 2001
- ✓United States-based for regional compliance or proximity
- ✓Relativity is a cloud-based legal technology platform founded in 2001 that provides software solutions for legal discovery, case management, and document review
Funding History
Luminance raised $165M across 3 rounds. Relativity raised N/A across 1 round.
Luminance
Series C
Oct 2021
Lead: Salesforce Ventures
Series B
Jan 2019
Lead: Autonomy Capital
Series A
Jan 2017
Relativity
Series A
Jan 2008
Lead: Thoma Bravo
Investor Comparison
No shared investors detected between these two companies.
Unique to Luminance
Unique to Relativity
Users Also Compare
Explore Further
FAQ — Luminance vs Relativity
Is Luminance bigger than Relativity?▾
Which company raised more funding — Luminance or Relativity?▾
Which company has a higher Awaira Score?▾
Who founded Luminance vs Relativity?▾
What does Luminance do vs Relativity?▾
Which company was founded first?▾
Which company has more employees?▾
Are Luminance and Relativity competitors?▾
Bottom Line
Relativity edges ahead with an Awaira Score of 75, but Luminance (64) isn't far behind. The gap is narrow enough that it could shift with the next funding round.
Who Should You Watch?
Relativity has a slight edge on paper, but Luminance isn't far behind. The AI space moves fast — today's underdog can be tomorrow's category leader. Follow both profiles on Awaira to track funding rounds, team changes, and score updates.