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Compare · RKLB vs TTEK

RKLB vs TTEK

Side-by-side comparison of Rocket Lab Corporation (RKLB) and Tetra Tech Inc. (TTEK): market cap, price performance, sector, and recent activity on the wire.

Summary

  • RKLB operates in Industrials, while TTEK operates in Consumer Discretionary - the two are in different parts of the market.
  • RKLB is the larger of the two at $37.76B, about 4.1x TTEK ($9.19B).
  • Over the past year, RKLB is up 44.9% and TTEK is down 0.1% - RKLB leads by 45.0 points.
  • RKLB has been more active in the news (39 items in the past 4 weeks vs 4 for TTEK).
  • RKLB has more recent analyst coverage (25 ratings vs 11 for TTEK).
PerformanceRKLB+44.90%TTEK-0.13%
2025-09-03+0.00%2026-09-02
MetricRKLBTTEK
Company
Rocket Lab Corporation
Tetra Tech Inc.
Price
$63.08+0.82%
$35.91+0.50%
Market cap
$37.76B
$9.19B
1M return
-15.31%
+2.50%
1Y return
+44.90%
-0.13%
Industry
Military/Government/Technical
Military/Government/Technical
Exchange
NASDAQ
NASDAQ
IPO
2020
1991
News (4w)
39
4
Recent ratings
25
11
RKLB

Rocket Lab Corporation

Rocket Lab USA, Inc., an aerospace company, focuses on developing rocket launch and control systems for the space and defense industries. The company provides launch services, spacecraft components, satellites and other spacecraft, and on-orbit management solutions; and designs, manufactures, and sells Electron and Neutron launch vehicles, as well as offers Photon platform for spacecraft solutions. It serves customers in commercial, civil, defense, and academic sectors. The company was founded in 2006 and is headquartered in Long Beach, California.

TTEK

Tetra Tech Inc.

Tetra Tech, Inc. provides consulting and engineering services worldwide. The company operates through Government Services Group (GSG) and Commercial/International Services Group (CIG) segments. The GSG segment offers early data collection and monitoring, data analysis and information technology, science and engineering applied research, engineering design, construction management, and operations and maintenance services; and climate change and energy management consulting, as well as greenhouse gas inventory assessment, certification, reduction, and management services. This segment serves federal, state, and local governments, and development agencies in water resources analysis and water management, environmental monitoring, data analytics, government consulting, waste management, and a range of civil infrastructure master planning and engineering design markets. The CIG segment provides early data collection and monitoring, data analysis and information management, feasibility studies and assessments, science and engineering applied research, engineering design, construction management, and operations and maintenance services. This segment serves natural resources, energy, and utilities markets, as well as civil infrastructure master planning and engineering design markets. Tetra Tech, Inc. was founded in 1966 and is headquartered in Pasadena, California.

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