Sifting through countless of stocks in the Machinery industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in ESCO Technologies Inc., Mirion Technologies or Inc. because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how ESCO Technologies Inc., Mirion Technologies and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About ESCO Technologies Inc., Mirion Technologies and Inc.

ESCO Technologies Inc. provides engineered components and systems for aviation, navy, defense, and industrial customers. The Aerospace & Defense segment designs and manufactures specialty filtration products, including hydraulic filter elements and fluid control devices used in commercial and defense aerospace applications; miniature electro-explosive devices for military aircraft ejection seats and missile arming devices; manufactures and sells mission-critical bushings, pins, sleeves, and precision-tolerance machined components for landing gear, rotor heads, engine mounts, flight controls, and actuation systems for the aerospace and defense industries; designs, develops and manufactures elastomeric-based signature reduction solutions for U.S. naval vessels; and provides mission-critical signature and power management solutions. The Utility Solutions Group segment develops, manufactures, and delivers diagnostic testing solutions; and designs and manufactures decision support tools for the renewable energy industry, primarily wind and solar. The RF Test & Measurement segment designs and manufactures products and systems to measure and control RF energy for research and development, regulatory compliance, and medical and security applications; and turnkey systems, such as RF test facilities and measurement systems, acoustic test enclosures, RF and magnetically shielded rooms, and secure communication facilities. This segment also supplies RF absorptive materials, filters, antennas, field probes, test cells, proprietary measurement software, and other test accessories; and offers calibration and product tests, feedthrough capacitors, high current power, telephone, data and control line filters, and high-altitude electromagnetic protection filters. It distributes its products through distributors, sales representatives, direct sales teams, and in-house sales personnel. The company was incorporated in 1990 and is based in Saint Louis, Missouri.

Mirion Technologies, Inc. provides radiation detection, measurement, analysis, and monitoring products and services in North America, Europe, and the Asia Pacific. It operates in two segments, Medical, and Nuclear & Safety. The Medical segment offers radiation oncology quality assurance and dosimetry solutions; patient safety solutions for diagnostic imaging and radiation therapy centers; radiation therapy quality assurance solutions for calibrating and verifying imaging and treatment accuracy; and radionuclide therapy products for nuclear medicine applications, such as product handling, medical imaging furniture, and rehabilitation products. This segment improves the quality and safety of cancer care delivery; and supports applications across medical diagnostics and practitioner safety. The Nuclear & Safety segment focuses on addressing critical radiation safety, measurement, and analysis applications; and provides personal radiation detection, identification equipment, and analysis tools. The company also offers include radiation measurement and monitoring solutions, reactor instrumentation and control detectors, imaging systems and cameras, and waste management systems; laboratory and scientific analysis systems comprising gamma/alpha spectroscopy, alpha/beta counting, specialty detectors, and spectroscopy software; radiation measurement and health physics instrumentation; and contamination and clearance monitors. It serves hospitals, clinics and urgent care facilities, dental and veterinary offices, radiation treatment facilities, OEMs for radiation therapy, laboratories, military organizations, government agencies, industrial companies, power and utility companies, reactor design firms, and NPPs. The company was formerly known as Global Monitoring Systems, Inc. and changed its name to Mirion Technologies, Inc. in January 2006. Mirion Technologies, Inc. was incorporated in 2005 and is headquartered in Atlanta, Georgia.

Latest Machinery and ESCO Technologies Inc., Mirion Technologies, Inc. Stock News

As of September 11, 2026, ESCO Technologies Inc. had a $7.0 billion market capitalization, compared to the Machinery median of $3.7 million. ESCO Technologies Inc.’s stock is NA in 2026, NA in the previous five trading days and up 31.6% in the past year.

Currently, ESCO Technologies Inc.’s price-earnings ratio is 50.2. ESCO Technologies Inc.’s trailing 12-month revenue is $1.3 billion with a 24.4% net profit margin. Year-over-year quarterly sales growth most recently was 14.4%. Analysts expect adjusted earnings to reach $8.357 per share for the current fiscal year. ESCO Technologies Inc. currently has a 0.1% dividend yield.

Currently, Mirion Technologies, Inc.’s price-earnings ratio is 181.6. Mirion Technologies, Inc.’s trailing 12-month revenue is $1.0 billion with a 2.4% net profit margin. Year-over-year quarterly sales growth most recently was 19.7%. Analysts expect adjusted earnings to reach $0.542 per share for the current fiscal year. Mirion Technologies, Inc. does not currently pay a dividend.

How We Compare ESCO Technologies Inc., Mirion Technologies and Inc. Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at ESCO Technologies Inc., Mirion Technologies and Inc.’s stock grades to see how they measure up against one another.

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ESCO Technologies Inc., Mirion Technologies and Inc.’s Quality Grades

Company	Ticker	Quality
ESCO Technologies Inc.	ESE	A
Mirion Technologies, Inc.	MIR	D

Like the Value Grade, AAII’s A+ Investor Quality Grade comes from the percentile rank of key metrics. Specifically, the Quality Score is the percentile rank of the average of the percentile ranks of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and the F-Score.

The score is variable, meaning it can consider all eight measures or, should any of the eight measures not be valid, the remaining measures that are valid. To be assigned a Quality Score, stocks must have a valid (non-null) measure and corresponding ranking for at least four of the eight quality measures.

The Quality Score is used to assess the underlying “quality” of a particular stock. A higher-quality stock possesses traits associated with upside potential and reduced downside risk. Backtesting of the Quality Grade shows that stocks with higher grades, on average, outperformed stocks with lower grades over the period of 1998 through 2019.

Stocks receive better grades (higher scores) for having higher scores for the quality subcomponents and worse grades (lower scores) for lower scores for the subcomponents.

ESCO Technologies Inc. has a Quality Score of 88, which is Very Strong. Mirion Technologies, Inc. has a Quality Score of 37, which is Weak.

The Quality Grade Winner: ESCO Technologies Inc.

As you can clearly see from the Quality Grade breakdown above, ESCO Technologies Inc. has a better overall quality grade than Mirion Technologies, Inc.. For investors who are looking for companies with higher quality than others in the same industry, ESCO Technologies Inc. could be a good stock to add to their portfolios. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

ESCO Technologies Inc., Mirion Technologies and Inc.’s Momentum Grades

Company	Ticker	Momentum
ESCO Technologies Inc.	ESE	C
Mirion Technologies, Inc.	MIR	D

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

ESCO Technologies Inc. has a Momentum Score of 57, which is Average. Mirion Technologies, Inc. has a Momentum Score of 26, which is Weak.

The Momentum Stock Winner: No Clear Winner

Neither ESCO Technologies Inc., Mirion Technologies or Inc. has a strong enough Momentum Grade to be considered a “winner.” Investors considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if ESCO Technologies Inc., Mirion Technologies or Inc. is the better investment when it comes to momentum.

ESCO Technologies Inc., Mirion Technologies and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
ESCO Technologies Inc.	ESE	B
Mirion Technologies, Inc.	MIR	B

Earnings estimate revisions scores consider the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, positive surprises beget further positive surprises‐or at least continued sales growth (the exact opposite is generally true, too).

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

ESCO Technologies Inc. has a Earnings Estimate Score of 62, which is Positive. Mirion Technologies, Inc. has a Earnings Estimate Score of 63, which is Positive.

The Earnings Estimate Revisions Grade Winner: It’s a Tie!

Looking at the Earnings Estimate Revisions Grade breakdown above, both ESCO Technologies Inc., Mirion Technologies and Inc. have a grade of B. For those focusing solely on a company’s estimate revisions, other financial metrics will need to be evaluated to determine whether ESCO Technologies Inc., Mirion Technologies or Inc. is a better fit.

Other ESCO Technologies Inc., Mirion Technologies and Inc. Grades

In addition to Estimate Revisions, Momentum and Quality, A+ Investor also provides grades for Value and Growth.

Growth investing builds on the idea that stocks of companies exhibiting strong, consistent and prolonged growth outperform those of slower-growth companies. AAII measures growth through consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations.

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection. Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether ESCO Technologies Inc., Mirion Technologies and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, ESCO Technologies Inc., Mirion Technologies or Inc. Stock?

Overall, ESCO Technologies Inc. stock has a Momentum Score of 57, Estimate Revisions Score of 62 and Quality Score of 88.

Mirion Technologies, Inc. stock has a Momentum Score of 26, Estimate Revisions Score of 63 and Quality Score of 37.

Comparing ESCO Technologies Inc., Mirion Technologies and Inc.’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.