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Compare · PRLB vs RS

PRLB vs RS

Side-by-side comparison of Proto Labs Inc. (PRLB) and Reliance Inc. (RS): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both PRLB and RS operate in Metal Fabrications (Industrials), so they compete in similar markets.
  • RS is the larger of the two at $20.23B, about 11.2x PRLB ($1.81B).
  • Over the past year, PRLB is up 94.5% and RS is up 28.1% - PRLB leads by 66.4 points.
  • PRLB has been more active in the news (14 items in the past 4 weeks vs 10 for RS).
  • RS has more recent analyst coverage (25 ratings vs 9 for PRLB).
PerformancePRLB+94.54%RS+28.11%
2025-06-09+0.00%2026-06-08
MetricPRLBRS
Company
Proto Labs Inc.
Reliance Inc.
Price
$76.30+4.89%
$396.34+0.38%
Market cap
$1.81B
$20.23B
1M return
+12.12%
+7.24%
1Y return
+94.54%
+28.11%
Industry
Metal Fabrications
Metal Fabrications
Exchange
NYSE
NYSE
IPO
2012
1994
News (4w)
14
10
Recent ratings
9
25
PRLB

Proto Labs Inc.

Proto Labs, Inc., together with its subsidiaries, operates as an e-commerce driven digital manufacturer of custom prototypes and on-demand production parts in the worldwide. The company offers injection molding; computer numerical control machining; three-dimensional (3D) printing, which include stereolithography, selective laser sintering, direct metal laser sintering, multi jet fusion, polyjet, and carbon DLS processes; and sheet metal fabrication products, including quick-turn and e-commerce-enabled custom sheet metal parts. It serves developers and engineers, who use 3D computer-aided design software to design products across a range of end markets. The company was founded in 1999 and is headquartered in Maple Plain, Minnesota.

RS

Reliance Inc.

Reliance Steel & Aluminum Co. operates as a metals service center company. The company provides alloy, aluminum, brass, copper, carbon steel, stainless steel, titanium, and specialty steel products and processing services to general manufacturing, non-residential construction, transportation, aerospace and defense, energy, electronics and semiconductor fabrication, and heavy industries. It also offers precision sheet metal fabrication services, including laser cutting, stamping, turret punching, machining, and powder coating and welding; and toll processing and logistics services. The company operated approximately 300 metals service center processing and distribution facilities in 40 states in the United States and 13 in other countries. It sells its products directly to large original equipment manufacturers, and small machine shops, and fabricators. The company operates in the United States, Australia, Belgium, Canada, China, France, India, Malaysia, Mexico, Singapore, South Korea, Turkey, the United Arab Emirates, and the United Kingdom. Reliance Steel & Aluminum Co. was founded in 1939 and is headquartered in Los Angeles, California.

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