About STAX
STAX is a company based in Los Angeles (United States) founded in 2016 by Bob Sharp. STAX has raised $50 million across 3 funding rounds from investors including Deutsche Bank, Firstime Ventures and Upper90. STAX offers products and services including Emissions Capture Technology, Mobile Emissions Control, and Land-Based Emissions Solutions. STAX operates in a competitive market with competitors including Eniram, Smart Green Shipping, Explicit, Yara Marine and FUELSAVE, among others.
- Headquarter Los Angeles, United States
- Founders Bob Sharp
- SectorsTransportation, Automotive & LogisticsEnvironment
- Website staxengineering.com
- Social LinkedIn X
- Total Equity Funding$50M (USD)
in 3 rounds
- Latest Funding Round$10M (USD), Series C
Feb 2025
- InvestorsDeutsche Bank
& 2 more
Products & Services of STAX
STAX offers a comprehensive portfolio of products and services, including Emissions Capture Technology, Mobile Emissions Control, and Land-Based Emissions Solutions.
Captures and controls pollutants from vessels and generators.
Provides portable solutions for emissions reduction in ports.
Treats exhaust from data center generators to minimize emissions.
Funding Insights of STAX
STAX has successfully raised a total of $50M across 3 strategic funding rounds. The most recent funding activity was a Series C round of $10 million completed in February 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $50M
- Total Rounds 3
- Last Round Series C — $10M
- First Round $40M
(Jul 2024)
- Investors Count 3
All 3 funding rounds of STAX with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Feb 2025 | $60M | Debt – Conventional | – | – | |
| Feb 2025 | $10M | Series C | – | – | |
| Jul 2024 | $40M | Series C | – | Upper90 | – |
3 investors in total: 3 institutional.
Investors in STAX
STAX has secured backing from 3 investors, including venture fund and institutional investors. Prominent investors backing the company include Deutsche Bank, Firstime Ventures and Upper90.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Firstime Ventures is focused on investing in sustainable technology companies. | – | firstime.vc | - | |
Seed and early-stage tech startups are invested in by Upper90. | – | upper90.io | New York, United States | |
Diversified banking and financial services are provided globally. | 1870 | db.com | Frankfurt Am Main, Germany |
Investor details for STAX
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of STAX
4 people are tracked at STAX (4 in leadership).
| Name | Role | Group |
|---|---|---|
Bob Sharp | Founder & President | Leadership |
Michael D Walker | CEO | Leadership |
Randall PASEK | Chief Regulatory And Science Officer | Leadership |
Michael Walker | Chief Executive Officer | Leadership |
Complete people profiles for STAX
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of STAX
3 dated milestones of STAX across 9 years, from founding to its latest funding, stage changes and deals.
- Founded STAX is founded.
- Funding First funding round of $40.0M.
- Funding Latest funding round, Series C, of $10.0M.
Competitors of STAX
STAX operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Eniram, Smart Green Shipping, Explicit, Yara Marine and FUELSAVE, among others.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| eniram.fi | 2005 | Helsinki, Finland | $6.5M | – | Fuel saving system for maritime vessels | |
| smartgreenshipping.com | 2019 | Devizes, United Kingdom | $2.92M | 3 | Auxiliary sails for ship propulsion systems are developed. | |
| explicit.dk | 1998 | Virum, Denmark | – | 14 | Maritime emissions are monitored through microsensor technology and data systems. | |
| yaramarine.com | 2010 | Oslo, Norway | – | – | Emission control systems for the maritime sector are provided. | |
| fuelsave.de | 2012 | Walldorf, Germany | $37.79M | 5 | Offers solutions to improve fuel efficiency in engines. | |
| zeroemissionservices.nl | 2020 | S-hertogenbosch, Netherlands | – | – | Provider of swappable battery containers and charging infrastructure for inland shipping | |
| seiche.com | 1996 | United Kingdom | – | 83 | Offers marine acoustics, noise measurement, and environmental monitoring services to industries. |
Detailed competitors of STAX
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
- Operating metrics
- Benchmarks
- Competitive positioning
Verified entity values are shown only after access is granted.
Web traffic of STAX
The website of STAX (staxengineering.com) receives about 9K visits a month.
- Monthly visits9K
▲ 9.6% vs previous month
Latest news on Stax
Complete news archive for STAX
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Similar companies to STAX
10 companies that operate in the same segment as STAX (Logistics Technology & Platforms), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Ride-hailing and on-demand delivery services are aggregated via mobile app. | 2012 | Singapore, Singapore | USD 9.09 B | USD 3.37 B | 11,270 | |
Food and grocery deliveries are facilitated through an app-based platform. | 2013 | San Francisco, California, United States | USD 2.47 B | USD 10.72 B | 23,700 | |
Food and grocery items are ordered via an online network. | 2014 | Bengaluru, Karnataka, India | USD 3.54 B | USD 2.46 B | 4,490 | |
Integrated logistics services including parcel delivery and warehousing are provided. | 2011 | Gurugram, Haryana, India | USD 1.25 B | USD 1.12 B | 62,070 | |
Online marketplace offering multi-category grocery products | 2015 | Barcelona, Catalonia, Spain | USD 1.16 B | – | – | |
E-commerce tools for shipping, marketing, and financial services are provided. | 2012 | Gurugram, Haryana, India | USD 344.42 M | USD 135.47 M | 800 | |
App based platform offering on demand delivery and ride-hailing services | 2010 | Jakarta, Jakarta, Indonesia | USD 4.72 B | – | – | |
Express delivery logistics solutions are provided for businesses and individuals. | 2015 | Bengaluru, Karnataka, India | USD 246.8 M | USD 447.86 M | – | |
AI-powered cloud-based vehicle tracking solutions are offered for fleet owners. | 2015 | San Francisco, California, United States | USD 915 M | USD 1.62 B | 3,500 | |
Wolt is operated as a delivery platform for food and groceries. | 2014 | Helsinki, Finland | USD 827.96 M | – | – |
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Frequently Asked Questions about STAX
STAX was founded in 2016 and raised its 1st funding round 8 years after it was founded.
STAX is headquartered in Los Angeles, United States. It is registered at Los Angeles, California, United States.
Michael D Walker is the current CEO of STAX.
STAX is a funded company, having raised a total of $50M across 3 funding rounds to date. The company's 1st funding round was a Series C of $40M, raised on Jul 2024.
STAX was founded in 2016 and is headquartered in Los Angeles, United States. Emission control and treatment systems for the maritime sector are developed and supplied. A mobile diesel emission reduction system is utilized to remove NOx, SOx, PM, and CO2 from oceangoing vessels, backup generators, ships at anchor, and boiler emissions at berth. Operations focus on diesel exhaust treatment for marine applications.
STAX's top competitors include Smart Green Shipping, Explicit and Eniram.
STAX offers Emissions Capture Technology, Mobile Emissions Control, and Land-Based Emissions Solutions.
STAX has 3 investors. Key investors include Deutsche Bank, Firstime Ventures, and Upper90.