STAX Engineering valuation, funding and investors
STAX Engineering works in emissions capture and control technology development, based in Long Beach, United States. Founded in 2024, it has about 51 employees.
- Last round
- Growth · $150M · Jun 2026
- Valuation at last round
- $1.53B · implied
- Headcount
- 51 · up
- Grade
- B
- Founded
- 2024
STAX Engineering valuation today
VCMC values STAX Engineering at $1.6B today, with a range of $1.1B to $2.4B and a grade of B. The valuation starts from its last funding round, a growth round in Jun 2026.
Valuation by date (74 rows)
Each point is what the model would have shown on that date, using only what was known then; before its first round, a company is valued as a startup because it later raised.
| Date | Valuation | Range | Predicted in 1 yr | Phase | Headcount | Trend | Grade | Winding-down probability |
|---|---|---|---|---|---|---|---|---|
| 1 Jan 2021 | $14.5M | $5.29M – $39.9M | $16.2M (+11%) | before first round | 4 | unknown | D | 0% |
| 1 Feb 2021 | $14.7M | $5.34M – $40.3M | $16.3M (+11%) | before first round | 4 | unknown | D | 0% |
| 1 Mar 2021 | $14.8M | $5.38M – $40.6M | $16.4M (+11%) | before first round | 4 | unknown | D | 0% |
| 1 Apr 2021 | $14.9M | $5.43M – $41.0M | $16.5M (+11%) | before first round | 4 | unknown | D | 0% |
| 1 May 2021 | $15.1M | $5.48M – $41.4M | $16.7M (+11%) | before first round | 4 | unknown | D | 0% |
| 1 Jun 2021 | $15.2M | $5.53M – $41.7M | $16.8M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Jul 2021 | $15.3M | $5.58M – $42.1M | $16.9M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Aug 2021 | $15.5M | $5.63M – $42.5M | $17.0M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Sep 2021 | $15.6M | $5.69M – $42.9M | $17.2M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Oct 2021 | $15.8M | $5.74M – $43.3M | $17.3M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Nov 2021 | $15.9M | $5.79M – $43.7M | $17.4M (+10%) | before first round | 4 | unknown | D | 0% |
| 1 Dec 2021 | $16.0M | $5.84M – $44.1M | $17.5M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Jan 2022 | $16.2M | $5.89M – $44.5M | $17.7M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Feb 2022 | $16.3M | $5.94M – $44.8M | $17.8M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Mar 2022 | $16.4M | $5.98M – $45.1M | $17.9M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Apr 2022 | $16.5M | $6.02M – $45.4M | $18.1M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 May 2022 | $16.7M | $6.07M – $45.8M | $18.2M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Jun 2022 | $16.8M | $6.11M – $46.1M | $18.3M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Jul 2022 | $16.9M | $6.16M – $46.5M | $18.5M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Aug 2022 | $17.0M | $6.20M – $46.8M | $18.6M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Sep 2022 | $17.2M | $6.25M – $47.2M | $18.7M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Oct 2022 | $17.3M | $6.30M – $47.5M | $18.9M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Nov 2022 | $17.4M | $6.34M – $47.9M | $19.0M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Dec 2022 | $17.5M | $6.39M – $48.2M | $19.2M (+9%) | before first round | 4 | unknown | D | 0% |
| 1 Jan 2023 | $16.9M | $6.15M – $46.4M | $18.4M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Feb 2023 | $17.0M | $6.19M – $46.7M | $18.6M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Mar 2023 | $17.1M | $6.23M – $47.0M | $18.7M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Apr 2023 | $17.3M | $6.28M – $47.4M | $18.8M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 May 2023 | $17.4M | $6.33M – $47.7M | $19.0M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Jun 2023 | $17.5M | $6.37M – $48.1M | $19.1M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Jul 2023 | $17.6M | $6.42M – $48.4M | $19.3M (+9%) | before first round | 3 | unknown | D | 0% |
| 1 Aug 2023 | $17.8M | $6.47M – $48.8M | $19.3M (+8%) | before first round | 3 | unknown | D | 0% |
| 1 Sep 2023 | $17.9M | $6.52M – $49.2M | $19.3M (+8%) | before first round | 3 | unknown | D | 0% |
| 1 Oct 2023 | $18.0M | $6.56M – $49.5M | $19.3M (+7%) | before first round | 3 | unknown | D | 0% |
| 1 Nov 2023 | $18.2M | $6.61M – $49.9M | $19.3M (+6%) | before first round | 3 | unknown | D | 0% |
| 1 Dec 2023 | $18.3M | $6.66M – $50.3M | $19.3M (+5%) | before first round | 3 | unknown | D | 0% |
| 1 Jan 2024 | $18.4M | $6.71M – $50.6M | $19.3M (+5%) | before first round | 3 | unknown | D | 0% |
| 1 Feb 2024 | $18.6M | $6.76M – $51.0M | $19.3M (+4%) | before first round | 3 | unknown | D | 0% |
| 1 Mar 2024 | $20.9M | $7.61M – $57.4M | $21.5M (+3%) | before first round | 6 | unknown | D | 0% |
| 1 Apr 2024 | $21.1M | $7.67M – $57.9M | $21.5M (+2%) | before first round | 6 | unknown | D | 0% |
| 1 May 2024 | $21.2M | $7.73M – $58.3M | $21.5M (+1%) | before first round | 6 | unknown | D | 0% |
| 1 Jun 2024 | $21.4M | $7.78M – $58.7M | $21.5M (+1%) | before first round | 6 | unknown | D | 0% |
| 1 Jul 2024 | $21.5M | $7.84M – $59.2M | $21.5M (0%) | before first round | 6 | unknown | D | 0% |
| 18 Jul 2024 | $445M | $292M – $744M | $489M (+10%) | after a round | 6 | unknown | B | 0% |
| 1 Aug 2024 | $446M | $292M – $744M | $489M (+10%) | after a round | 6 | unknown | B | 0% |
| 1 Sep 2024 | $450M | $292M – $744M | $489M (+9%) | after a round | 6 | unknown | B | 0% |
| 1 Oct 2024 | $453M | $292M – $744M | $489M (+8%) | after a round | 6 | unknown | B | 0% |
| 1 Nov 2024 | $457M | $292M – $744M | $489M (+7%) | after a round | 6 | unknown | B | 0% |
| 1 Dec 2024 | $461M | $292M – $744M | $489M (+6%) | after a round | 6 | unknown | B | 0% |
| 1 Jan 2025 | $464M | $292M – $744M | $489M (+5%) | after a round | 6 | unknown | B | 0% |
| 1 Feb 2025 | $468M | $292M – $744M | $489M (+4%) | after a round | 6 | unknown | B | 0% |
| 27 Feb 2025 | $647M | $456M – $1.0B | $711M (+10%) | after a round | 6 | unknown | B | 0% |
| 1 Mar 2025 | $647M | $456M – $1.0B | $711M (+10%) | after a round | 6 | unknown | B | 0% |
| 24 Mar 2025 | $1.1B | $775M – $1.7B | $1.2B (+10%) | after a round | 6 | unknown | B | 0% |
| 1 Apr 2025 | $1.1B | $775M – $1.7B | $1.2B (+10%) | after a round | 6 | unknown | B | 0% |
| 1 May 2025 | $1.1B | $775M – $1.7B | $1.2B (+9%) | after a round | 6 | unknown | B | 0% |
| 1 Jun 2025 | $1.1B | $775M – $1.7B | $1.2B (+8%) | after a round | 6 | unknown | B | 0% |
| 1 Jul 2025 | $1.1B | $775M – $1.7B | $1.2B (+7%) | after a round | 42 | growing | B | 0% |
| 1 Aug 2025 | $1.1B | $775M – $1.7B | $1.2B (+6%) | after a round | 42 | growing | B | 0% |
| 1 Sep 2025 | $1.2B | $783M – $1.7B | $1.2B (+6%) | after a round | 44 | growing | B | 0% |
| 1 Oct 2025 | $1.2B | $783M – $1.7B | $1.2B (+5%) | after a round | 44 | flat | B | 0% |
| 1 Nov 2025 | $1.2B | $779M – $1.7B | $1.2B (+4%) | after a round | 43 | flat | B | 0% |
| 1 Dec 2025 | $1.2B | $779M – $1.7B | $1.2B (+3%) | after a round | 43 | flat | B | 0% |
| 1 Jan 2026 | $1.2B | $779M – $1.7B | $1.2B (+2%) | after a round | 43 | flat | B | 0% |
| 1 Feb 2026 | $1.2B | $779M – $1.7B | $1.2B (+1%) | after a round | 43 | flat | B | 0% |
| 1 Mar 2026 | $1.2B | $779M – $1.7B | $1.2B (+1%) | after a round | 43 | flat | B | 0% |
| 1 Apr 2026 | $1.2B | $768M – $1.7B | $1.2B (0%) | after a round | 43 | flat | B | 0% |
| 1 May 2026 | $1.3B | $774M – $1.8B | $1.3B (0%) | after a round | 49 | up | B | 0% |
| 1 Jun 2026 | $1.3B | $753M – $1.8B | $1.3B (0%) | after a round | 49 | up | B | 0% |
| 1 Jul 2026 | $1.5B | $1.1B – $2.4B | $1.7B (+10%) | after a round | 53 | up | B | 0% |
| 1 Aug 2026 | $1.5B | $1.1B – $2.4B | $1.7B (+9%) | after a round | 53 | up | B | 0% |
| 1 Sep 2026 | $1.6B | $1.1B – $2.4B | $1.7B (+8%) | after a round | 53 | up | B | 0% |
| 1 Oct 2026 | $1.6B | $1.1B – $2.4B | $1.7B (+7%) | after a round | 51 | up | B | 0% |
| 24 Oct 2026 | $1.6B | $1.1B – $2.4B | $1.7B (+6%) | after a round | 51 | up | B | 0% |
Key facts about STAX Engineering
- Founded
- 2024
- Headquarters
- Long Beach, United States
- Employees
- about 51 +16% in a year
- Total raised
- $412M
- Funding rounds
- 5
- Last round
- Growth Equity Jun 2026
STAX Engineering was founded in 2024 by Bob Sharp, Edward Norton and Michael Walker.
STAX Engineering funding history
STAX Engineering has 5 funding rounds on record, from Jul 2024 to Jun 2026, $412M in total. None disclosed a valuation.
Growth Equity 30 Jun 2026
With Bain Capital.
Sources: staxengineering.com, staxengineering.com, globenewswire.com and 3 more
$150M
Grant 14 Aug 2025no round page
With Innovate UK, UK Department for Transport.
Sources: staxengineering.com, staxengineering.com, carbonherald.com
$1.5M
Growth Equity 23 Mar 2025
Investors not disclosed.
$150M
Growth Equity 26 Feb 2025
Led by Firstime Credit, Deutsche Bank Private Credit & Infrastructure.
Sources: seabound.co, staxengineering.com, workboat.com and 4 more
$70M
$40M
STAX Engineering investors
6 investors have backed STAX Engineering; Deutsche Bank Private Credit & Infrastructure, Firstime Credit and Upper90 led at least one round.
- Deutsche Bank Private Credit & Infrastructure lead
- Firstime Credit lead
- Innovate UK
- UK Department for Transport
What STAX Engineering does
STAX Engineering works in environmental engineering services, with 13 recorded offerings and customers in maritime and data centers.
STAX Engineering is a United States company engaged in emissions capture and control technology for sectors such as maritime and data centers. The company develops and provides patented solutions for capturing and sequestering emissions, including barge-based, land-based, and mobile systems for terminal operators, fleets, and data centers. STAX Engineering operates in multiple ports across California and is CARB-approved, serving clients in the maritime and data center industries.
Description from Veridion's company data.
Products and services
- Emissions Capture and Control Technology Development
- Emissions Capture and Control Solutions Delivery
- Vessel Emissions Capture and Control Services
- Barge-Based Emissions Control Solutions
- Land-Based Emissions Control Solutions
- Mobile Emissions Control Solutions
- Data Center Emissions Capture and Control Services
- Maritime Emissions Reduction Services
- Regulatory Compliance Consulting Services
- Emissions Sequestration Technology Development
- Emissions Reduction Services for Terminal Operators
- Fleet Emissions Control Services
- Sustainable Technology Solutions Development
Markets
- Maritime
- Data Centers
Technology
- Emissions Capture and Sequestration Technology
Certifications
- CARB certified
Business model
- Business-to-Business
- Service Provider
Industry codes (NAICS)
- 541330 Engineering Services 100% match
Questions about STAX Engineering
What is STAX Engineering worth?
Valuation $1.6B (range $1.1B to $2.4B), as of 24 Oct 2026.
Has STAX Engineering raised money?
STAX Engineering has 5 funding rounds on record, from Jul 2024 to Jun 2026, $412M in total. None disclosed a valuation.
Who has invested in STAX Engineering?
Deutsche Bank Private Credit & Infrastructure, Firstime Credit, Upper90, Bain Capital, Innovate UK and UK Department for Transport. Lead investors include Deutsche Bank Private Credit & Infrastructure, Firstime Credit and Upper90.
How many people work at STAX Engineering?
About 51, up 16% over the last year. Headcount grew from 4 in Jan 2021 to 51 in Sep 2026.
What does STAX Engineering do?
STAX Engineering works in environmental engineering services, with 13 recorded offerings and customers in maritime and data centers. Its main offerings are emissions capture and control technology development, emissions capture and control solutions delivery and vessel emissions capture and control services.
When was STAX Engineering founded, and where is it based?
STAX Engineering was founded in 2024 and is based in Long Beach, United States. It has about 51 employees, up 16% over the last year.