---
title: Companies starting with M
canonical: https://sweetvaluelab.com/companies/m
as_of: 2026-11-02
---
# Companies starting with M

34 of the 533 large US companies this site covers, A–Z by ticker, as of Nov 2, 2026, each with its Valuation grade (the site's valuation models, Oct 30, 2026) and Quant grade (model v1, Oct 30, 2026), S the best to D the lowest.

| Ticker | Company | Sector | Market value | Valuation grade | Quant grade |
| --- | --- | --- | ---: | --- | --- |
| [MA](https://sweetvaluelab.com/stocks/ma) | Mastercard | Financial Services | $559.2B | D | S |
| [MAA](https://sweetvaluelab.com/stocks/maa) | Mid-America Apartment Communities | Real Estate | $13.6B | A | B |
| [MAR](https://sweetvaluelab.com/stocks/mar) | Marriott International | Consumer Cyclical | $104.1B | D | S |
| [MAS](https://sweetvaluelab.com/stocks/mas) | Masco | Basic Materials | $15.5B | B | S |
| [MCD](https://sweetvaluelab.com/stocks/mcd) | McDonald's | Consumer Cyclical | $182.7B | B | S |
| [MCHP](https://sweetvaluelab.com/stocks/mchp) | Microchip Technology | Technology | $42.0B | B | B |
| [MCK](https://sweetvaluelab.com/stocks/mck) | McKesson | Healthcare | $116.0B | C | S |
| [MCO](https://sweetvaluelab.com/stocks/mco) | Moody's | Financial Services | $85.2B | D | S |
| [MDLZ](https://sweetvaluelab.com/stocks/mdlz) | Mondelez | Consumer Defensive | $82.2B | C | B |
| [MDT](https://sweetvaluelab.com/stocks/mdt) | Medtronic | Healthcare | $123.5B | S | B |
| [MELI](https://sweetvaluelab.com/stocks/meli) | MercadoLibre | Consumer Cyclical | $82.4B | A | A |
| [MET](https://sweetvaluelab.com/stocks/met) | MetLife | Financial Services | $63.6B | A | — |
| [META](https://sweetvaluelab.com/stocks/meta) | Meta Platforms | Communication Services | $1.4T | A | S |
| [MGM](https://sweetvaluelab.com/stocks/mgm) | MGM Resorts | Consumer Cyclical | $7.6B | D | B |
| [MKC](https://sweetvaluelab.com/stocks/mkc) | McCormick | Consumer Defensive | $12.7B | A | B |
| [MLM](https://sweetvaluelab.com/stocks/mlm) | Martin Marietta Materials | Basic Materials | $32.5B | D | B |
| [MMM](https://sweetvaluelab.com/stocks/mmm) | 3M | Industrials | $89.9B | B | S |
| [MNST](https://sweetvaluelab.com/stocks/mnst) | Monster Beverage | Consumer Defensive | $92.7B | D | S |
| [MO](https://sweetvaluelab.com/stocks/mo) | Altria | Consumer Defensive | $129.8B | S | S |
| [MOS](https://sweetvaluelab.com/stocks/mos) | Mosaic | Basic Materials | $5.8B | B | B |
| [MPC](https://sweetvaluelab.com/stocks/mpc) | Marathon Petroleum | Energy | $124.9B | C | B |
| [MPWR](https://sweetvaluelab.com/stocks/mpwr) | Monolithic Power Systems | Technology | $59.5B | D | A |
| [MRK](https://sweetvaluelab.com/stocks/mrk) | Merck | Healthcare | $368.9B | S | A |
| [MRNA](https://sweetvaluelab.com/stocks/mrna) | Moderna | Healthcare | $88.5B | — | D |
| [MRSH](https://sweetvaluelab.com/stocks/mrsh) | Marsh McLennan | Financial Services | $95.7B | A | A |
| [MRVL](https://sweetvaluelab.com/stocks/mrvl) | Marvell Technology | Technology | $172.0B | D | B |
| [MS](https://sweetvaluelab.com/stocks/ms) | Morgan Stanley | Financial Services | $290.7B | B | — |
| [MSCI](https://sweetvaluelab.com/stocks/msci) | MSCI | Financial Services | $45.3B | D | S |
| [MSFT](https://sweetvaluelab.com/stocks/msft) | Microsoft | Technology | $3.9T | B | S |
| [MSI](https://sweetvaluelab.com/stocks/msi) | Motorola Solutions | Technology | $81.3B | D | S |
| [MSTR](https://sweetvaluelab.com/stocks/mstr) | Strategy | Technology | $52.5B | — | C |
| [MTB](https://sweetvaluelab.com/stocks/mtb) | M&T Bank | Financial Services | $31.9B | A | — |
| [MTD](https://sweetvaluelab.com/stocks/mtd) | Mettler Toledo | Healthcare | $33.6B | C | S |
| [MU](https://sweetvaluelab.com/stocks/mu) | Micron Technology | Technology | $1.0T | S | S |

[L](https://sweetvaluelab.com/companies/l) · [All letters](https://sweetvaluelab.com/companies) · [N](https://sweetvaluelab.com/companies/n)

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Source: https://sweetvaluelab.com/companies/m (SweetValueLab, free, no account). Prices and statements from Financial Modeling Prep; filings from SEC EDGAR. Research and educational data, not investment advice; nothing here is a recommendation to buy, sell or hold any security.