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We consider the contributions of individual new particles to the anomalousmagnetic moment of the muon, utilizing the generic framework of simplifiedmodels. We also present analytic results for all possible one-loopcontributions, allowing easy application of these results for more completemodels which predict more than one particle capable of correcting the muonmagnetic moment. Additionally, we provide a Mathematica code to allow thereader straightforwardly compute any 1-loop contribution. Furthermore, wederive bounds on each new particle considered, assuming either the absence ofother significant contributions to $a_\mu$ or that the anomaly has beenresolved by some other mechanism. The simplified models we consider areconstructed without the requirement of $SU(2)_L$ invariance, but appropriatechiral coupling choices are also considered. In summary, we found the followingparticles capable of explaining the current discrepancy, assuming unitcouplings: $2$~TeV ($0.3$~TeV) neutral scalar with pure scalar (chiral)couplings, $4$~TeV doubly charged scalar with pure pseudoscalar coupling,$0.3-1$~TeV neutral vector boson depending on what couplings are used (vector,axial, or mixed), $0.5-1$~TeV singly-charged vector boson depending on whichcouplings are chosen, and $3$~TeV doubly-charged vector-coupled bosons. We alsoderive the following $1\sigma$ lower bounds on new particle masses assumingunit couplings and that the experimental anomaly has been otherwise resolved: adoubly charged pseudo-scalar must be heavier than $7$~TeV, a neutral scalarthan $3$~TeV, a vector-coupled new neutral boson $600$~GeV, an axial-coupledneutral boson $1.5$~TeV, a singly-charged vector-coupled $W^\prime$ $1$~TeV, adoubly-charged vector-coupled boson $5$~TeV, scalar leptoquarks $10$~TeV, andvector leptoquarks $10$~TeV.

New Physics Contributions to the Muon Anomalous Magnetic Moment: A Numerical Code